Gleanings of the Week Ending March 9, 2024

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

The benefits of trees – From an architect’s perspective…working with trees rather than just around them.

How the color orange got its name – Orange was my mother’s favorite color for many years. She had the door of the house they built painted orange! So - this post caught my attention. In English, before the turn of the 16th century, orange objects would be simply known as “yellow-red” or “geoluhread” in Middle English. There are also records of the word “saffron” being used to as a replacement for “orange” as a descriptor. Oranges, the fruit, take their name from the Sanskrit nāraṅga meaning orange tree. Nāraṅga morphed via the Persian word nâranj and the French pomme d’orenge, meaning “apple of the orange tree.”

Quality time with Pocket Gophers - Pocket gophers spend most of their lives underground. There are some 38 species found across a wide swath of central and North America. In many areas, they’re abundant. And yet, many people have never seen one.

Scientists shocked to discover new species of green anaconda, the world’s biggest snake - Green anacondas are the world’s heaviest snakes, and among the longest. Predominantly found in rivers and wetlands in South America, they are renowned for their lightning speed and ability to asphyxiate huge prey then swallow them whole. New research upends scientific understanding of this magnificent creature, revealing it is actually two genetically different species. The snakes are well-adapted to a life lived mostly in water. Their nostrils and eyes are on top of their head, so they can see and breathe while the rest of their body is submerged. Anacondas are olive-colored with large black spots, enabling them to blend in with their surroundings. The two species of green anaconda look almost identical, and no obvious geographical barrier exists to separate them. But their level of genetic divergence – 5.5% – is staggering. By comparison, the genetic difference between humans and apes is about 2%.

Helping caregivers help people with dementia eat at home - Over 80% of people with dementia in the United States live at home. An estimated 60% of home-based patients aren't able to routinely eat or prepare food on their own. Professionals recommended:

  • Lowering auditory and visual distractions.

  • Eliminating household clutter, clearing pathways and improving lighting.

  • Providing written instructions to guide patients' mealtime activities.

Untraceable ingredients and unrecycled packaging: Why sustainable skincare is so hard to find - Short of a chemistry degree, understanding how to make sustainable skincare choices is no easy task for consumers.

Escaping HomeOne of the last birding field trips we did before moving from Maryland was along the Harriet Tubman Byway. The post includes an image of the area from NASA’s Landsat 9 and historical background.

Peek Inside the Ancient Egyptian Tomb of Neferhotep, Now Open to the Public - Revitalizing ancient artifacts is no easy lift. All the wall paintings, reliefs, and sculptures required stabilizing loose stone fragments, cracks, detached plaster, and paint layers, not to mention cleaning and preserving surfaces damaged by fire and time. The restoration project started in 2000.

Discovering Mammoth Cave’s Oceanic Past - Creatures that lived in an ancient seaway that covered the landscape known today as Kentucky some 325 million years ago: crinoids, horn coral, brachiopods…small dark slashes that indicate shark teeth…a dorsal fin spine…a large piece of shoulder skeletal cartilage.

Saguaro Arms and Other Cactus Musings in Tucson – Remembering Saguaro National Park from my daughter’s graduate school years in Tucson. The research about the arms is interesting: The working theory is that saguaros start their branching at a certain size, not a certain age. Initial data indicates that saguaros tend to grow their first arm facing the south or southeast, often when they’re around 11-feet tall. Second arms often grow facing north. Arms seem to grow in a way that maintains symmetry and allows the saguaro to keep its balance.

Gleanings of the Week Ending February 17, 2024

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

The lost art of the death mask – In the late Middle Ages (after 50% of the population was wiped out in 4 years by plague), death masks were created by molding wax or plaster over the face, and were a useful way of copying the features of deceased relatives, so that sculptors could use them as a reference for the lifelike portraits displayed at funerals. Then in the 18th Century, something unexpected happened: people began to value death masks for their own sake. Many death masks were turned into spooky heirlooms, while some became souvenirs that command six-figure sums to this day.

Rapa Nui’s Rongorongo Tablets in Rome Radiocarbon Dated - In the nineteenth century, Roman Catholic missionaries took four wooden tablets bearing rongorongo glyphs from Easter Island. They have recently been radiocarbon dated; three of the tablets were made from trees cut down in the eighteenth or nineteenth centuries; the fourth tablet came from a tree felled sometime between 1493 and 1509, some 200 years before the arrival of Europeans in the 1720s.

Tribe Making Play to End Oil Development at Big Cypress National Preserve - The National Park Service took charge of the land 50 years ago, which is a haven for some of Florida’s most endangered wildlife species, such as the Florida panther — but not the mineral rights under the land. Those are owned by the Collier Resources Company, which has from time to time dispatched oil companies to the preserve to look for black gold.

Bird Alert: The Search for Local Rarities – The joy of birding close to home!

Archaeologists discover oldest known bead in the Americas - At the La Prele Mammoth site in Wyoming. Made of bone from a hare. Almost 13,000 years old.

Stunning Macro Photos Pay Homage to the Frozen Beauty of Winter – A good reminder to check ice as a subject for winter photography!

Ancient pollen trapped in Greenland ice uncovers changes in Canadian forests over 800 years - The onset of the Little Ice Age around 1400 and the arrival of European settlers and subsequent intensive logging practices around 1650. The pollen in ice can be dated almost to the year it was deposited!

Back Pain Explained - Many people with degenerated discs feel no pain at all….but others have severe pain. It appears that when aging or under degenerative stress, a subset of cells in the center of the disc can release a cry for help, a particular signal that causes outside neurons to extend their axons within, allowing the brain to feel the pain inside. This work could inform future treatments for discogenic lower back pain!

PACE Makes it to Space – NASA’s PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) was launched February 8…preparing to move into operational phase soon.

How our drinking water could come from thin air - The solar-powered hydropanels work by using sunlight to power fans that pull air into the device, which contains a desiccant material which absorbs and traps moisture. The water molecules accumulate and are emitted as water vapor as the solar energy raises the temperature of the panel to create a high-humidity gas. This then condenses into a liquid before minerals are added to make it drinkable. There are several startups with other approaches to produce water from air too. And they all work even with dry air.

NASA Images from the 1960s

I did a lot of my growing up in the 1960s; the US space program had an impact on my education and perspective of the world so when I found 3 books of images from NASA in the 1960s available on Internet Archive for easy browsing- I savored the memories of seeing some of those images in newspapers and magazines shortly after they were taken. The images looking back at Earth from space were so different than the previously available aerial photographs taken from planes or balloons. Now we take for granted the satellite imagery in our everyday lives (for example, Google Maps satellite view). The NASA programs in the 1960s were steps along the technological path. A lot has happened in the past 50 years!

(click on the sample images to see a larger version…and the link to look at the whole book of wonderful images)

Exploring space with a camera (1968)

Gleanings of the Week Ending February 11, 2023

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Why the world feels so unstable right now – Intermittent instability of nonlinear systems of nature and global society –weather and climate, the economy, a pandemic, a war. We attempt to model nonlinear systems to predict these intermittent instabilities…but it is hard. Right now there seem to be significant nonlinear systems interacting: weather/climate + diseases (COVID-19 and bird flu (US)) + inflation + Russia’s invasion of Ukraine.

Completing The Electrical Circuit at Kilauea in Hawai'i Volcanoes National Park – The technique to get a detailed ‘CAT scan’ of the volcano…..mapping locations of subsurface magma in 3D.

Ex-cell-ent Clouds off Chile’s Coast – Open and closed-cell marine stratocumulus clouds photographed by Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra and Aqua satellites. Learning more about these clouds….contributing to better weather prediction and improving the accuracy of climate models.

The Surprising Substances Ancient Egyptians Used to Mummify the Dead – Evidently some of the substances the embalmers were using came from Southeast Asia. Perhaps embalming instigated early global trade.

Algae robots transport antibiotics to infected tissues (infographic) – Researchers inserted the modified algae into mouse windpipes…they spread into the lung tissue and killed pathogenic bacteria!

Hundreds of Frank Lloyd Wright’s Designs were never built. Here’s what they might have looked like. – Computer generated models from David Romero.

5 expert tips to protect yourself from online misinformation – We all need tools to help us distinguish information from misinformation.

Montessori: The world’s most influential school? – I sought out a Montessori pre-K and K for my daughter about 30 years ago…and it fit her needs. I have no way of analyzing how closely the school adhered to classical Montessori ideals.

An action plan to prevent Alzheimer’s disease – Defining what 2nd generation memory clinics should include.

Gallup: Fewer than half of Americans believe US healthcare is good enough – Not surprising really – it’s expensive and we are all getting more skeptical that the system is as effective as it should be for what it costs. Evidently the people in my age group (over 55) were generally more satisfied with their health care than other age groups; people old enough to qualify for Medicare may not be as anxious about costs but I was surprised that I am in the minority in thinking US healthcare is ‘subpar’ rather than ‘excellent’ or ‘good’ based on the effectiveness issue and the structure of the system overall.

Gleanings of the Week Ending November 12, 2022

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

America’s largest transit bus charging station & microgrid open in Maryland – The headline caught my eye because I lived in Maryland for over 20 years – 8 of those in the county where this is happening! I hope other states have the same sorts of projects in the works.

NASA Finds More Than 50 Super-Emitters of Methane – Finding them is only the first step….how many of them will be situations we can reduce or stop the emission?

Iron induces chronic heart failure in half of heart attack survivors – This study prompted testing of iron chelation therapy to remedy or mitigate the effects associated with iron in hemorrhagic myocardial infarction patients.

Unique Bronze Age belt discovered near Opava – Half my ancestors came from the area that is now the Czech Republic…I am drawn to articles about the history of the region.  The belt is quite beautiful…but was it a practical item of apparel?  

What happens if our circadian rhythms are out of whack? – WHO has proclaimed that disrupted circadian rhythms are a probable carcinogen. The study discussed in this post was about the mechanism that circadian rhythm disruption triggers lung tumors.

View 16 Breathtaking Images from the Nature Conservancy’s Annual Photo Contest – Take a little break….look at awesome images of our world.

Mississippi River Basin adapts as climate change brings extreme rain and flooding – This year the stories about extreme weather seem to be more frequent – and wide ranging in terms of water. The Mississippi was low enough for barge traffic to be impacted because of drought…yet there were floods along part of the river just last summer.

Eye-opening discovery about adult brain's ability to recover vision – An unexpected success…opening new ways to treat a vision impairment (LCA) and maybe prompt a re-look about how the adult brain can re-wire itself relative to vision.

The World’s Whitest Paint May Soon Help Cool Airplanes and Spacecraft – A way of making paint that was previously too thick/heavy for things that move. The thicker version works for homes and buildings. We’ll need this technology to reflect heat without expending energy!

Greater cloud cover may be narrowing the gap between daily high and low temperatures – Simulating clouds explicitly. Trying to understand why nights are heating up faster than days across the globe.

Gleanings of the Week Ending October 8, 2022

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Photography Collective Highlights Washington State’s Beautiful Vistas in New Book – My husband and I were talking about a trip to the northwestern US before the pandemic…maybe it’s time to think about it again. It’s one of the few areas of the country we have not visited.

The people resurrecting India’s ancient fruit trees – Saving varieties of trees through grafting…mangos being the dominant example in this article.

Longhorned tick discovered in northern Missouri – I perked up when I saw ‘Missouri’ in the title…since I now live in the state. It turns out that this tick is originally from eastern Russia and Australasia…and was first found in the US in New Jersey in 2017. It has been spreading rapidly with Missouri being the first state in the Midwest. It has a negative impact on cattle.

Cactus holes and cobwebs: the weird nesting habits of birds – Some unusual bird nests.

James Earl Jones Retires from Voicing Darth Vader – End of an era….but not the sound because that will continue on recreated by a proprietary AI.

As carbon dioxide grows more abundant, trees are growing bigger – Increased CO2 accelerates photosynthesis and plants grow faster. The phenomenon is called ‘carbon fertilization.’ That can help reduce climate change if we can keep our forests intact (and increase forests). Drought, insect infestations, and wildfires are a big challenge toward that goal.

NASA successfully crashed a spacecraft into its asteroid target – A baby step toward defending Earth from space rocks.

Cacao consumption no limited to Maya elites – Cacao residues were found on jars, mixing bowls, serving plates, and drinking vessels used all over the El Pilar site.

Neonatal sepsis: the new threat posed by superbugs – Antibiotics were introduced in the 1940s, saving many lives…but they have been over-used – unintentionally breeding resistant microbes that no antibiotic can treat. In India, 20% of neonatal deaths are caused by sepsis.

US Plan to Add 500,000 EV Chargers in All 50 States Gets Final Approval – Hurray! I am enjoying my plug-in hybrid (Prius Prime) right now but want my next car to be an EV….and I still want to be able to take road trips! This project getting underway is a start toward making that easier.

Venturing Out and Weekly Gleanings

Continuing the blog post series prompted by COVID-19….

A Zentangle Prompt

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Inspiration for a pattern can come from our environment. Sometimes creating a pattern is relatively straightforward. The prompt for today is to create your own pattern based on the picture of tiles to the right. Hint: start with a grid of squares. Use your pattern in a tile. Other patterns in the tile are tangler’s choice (i.e. whatever you want).

Here are some tiles I made based on yesterdays prompt: Make a tile using the gingo pattern.

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It is one of my favorite patterns for mono-tangle tiles.

Venturing away from Home

I went to Howard Country Conservancy’s Mt Pleasant to record a Facebook Live Zentangle session. It was the first time I had driven my car in May! It was also my first volunteer gig since early March – and a good experience – but I realized how out of practice I have become with getting out and about. There was a ‘newness’ to my car even though I’ve had it for a few years. Mt Pleasant is a place I know very well but hadn’t been there since January; it felt unfamiliar.

I was glad the flip chart pad and gallery board were wrapped in plastic trash bags because it was raining heavily when I got there. It took two trips to get into the building and I was glad I had worn a windbreaker and waterproof boots.

The mask that I wore during set up did not stay in place as well as I wanted. I need more experience with securing it and being certain that I can breathe well enough through the layers of fabric. It’s a good ‘lesson learned’ before I venture out to try doing my own grocery shopping in June.

The materials I had prepared ahead of time worked well…minimizing the amount I had to create while I was talking.

The Facebook Live session lasted about 20 minutes and made a three-part tile using TIPPLE, CRESCENT MOON, and either MEER or POKEROOT. I missed not being able to create a mosaic of the student tiles at the end. Here are tiles I made with the patterns after the session.

I’m not sure how any of my volunteer gigs will be possible anytime soon but I’ll probably do some hiking at Mt. Pleasant…on a sunny day…another small ‘venturing away from home.’

Links to my previous “filling a day of social distance” posts  here.

Gleanings of the Week

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Soak in the Details of the Moon with this High-Definition Photo – A backyard astrophotographer with a lot patience.

Record conservation study of Tutankhamun's tomb solves mystery and raises new questions – Teasing out more history from a much-studied place.

Top 25 birds of the week: Bright Colours - Wild Bird Revolution – It’s a gray rainy day as I write this….I am appreciating the colors!

New Thoughts on Turkey’s Oldest Temple Complex - Archaeology Magazine – Gobekli Tepe…built by hunter gatherers over 11,000 years ago….requiring hundreds of people to construct. I first learned about it in a Coursera course a few years ago.

NASA's ICESat-2 measures Arctic Ocean's sea ice thickness, snow cover -- ScienceDaily – ICESAT-2 was launched in September 2018; I learned about it during visits to NASA Goddard during my HoLLIE class in spring 2018. It’s good to get an update on it now.

The ingredients for a longer life - BBC Future – Study of populations where many live to 100…focusing on eating habits, social connection, a few cups of tea or coffee, sweet potato and bittersweet melons, landscape…and moderation.

Saving energy and lives: How a solar chimney can boost fire safety -- ScienceDaily – If a building has a solar chimney, it will suck smoke out of a building during a fire…giving people more time to escape!

Risks of Clutter, Tips for Decluttering Your Home | Berkeley Wellness – I had intended to spend some of the ‘stay at home as much as possible’ time de-cluttering. But I moved on to other projects. Now I am returning to the idea just as I am beginning to tentatively venture out. The clutter in my house is not enough to make it unsafe…but I do have a lot of stuff that I no longer need.

Tracing the human genetic history: Every tooth tells a different story – Another data point for forensics when DNA is not available. Teeth often survive for longer than other parts of the body.

New evidence of watery plumes on Jupiter’s moon Europa - GeoSpace - AGU Blogosphere – I’m missing Charles Cockell’s Life in the Universe Pandemic Series. This article is about new analysis of data collected by the Galileo mission flyby of Europa in 2000.  The ESA Juice mission, which is scheduled to launch in 2022, will study the potential habitability and underground oceans of three of Jupiter’s moons: Ganymede, Calisto, and Europa.

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The Zentangle® Method is an easy-to-learn, relaxing, and fun way to create beautiful images by drawing structured patterns. It was created by Rick Roberts and Maria Thomas. "Zentangle" is a registered trademark of Zentangle, Inc. Learn more at zentangle.com.

Gleanings of the Week Ending January 25, 2020

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Top 25 Wild Bird Photographs of the Week: January 2020 – Starting out with wild and wonderful birds this week.

Infographic: How does nature influence human health? – Most people intuitively know that nature has a positive impact…but now there is more and more research to quantify that impact.

The Plastics Pipeline: A Surge of New Production Is on the Way - Yale E360 – Just when I really want manufacturers to find ways to package products in something other than plastic….the industry has plans to ramp up production of plastic. Consumers can still make a difference with our purchases (or lack of purchase). I’m slowly but surely reducing the items I buy that come in plastic….always looking for alternatives.

New aqueous lithium-ion battery improves safety without sacrificing performance: Non-flammable, cost-efficient, and effective battery -- ScienceDaily – Hurray for all the battery research going on right now….hopefully there will be more and better options near term. It would certainly boost the speed we can transition away from fossil fuels.

Pylos Tomb Artifacts Suggest Trade Links - Archaeology Magazine – Amber from the Baltics, imported carnelian, pendant depicting an Egyptian goddess….the Greek site might have been a stop on a trade route.

Happy New Year from Amundsen-Scott South Pole Station – Kelly Brunt posted this on January 3rd….and I just got around to looking at it. She was one of our hosts at NASA for my HoLLIE class and then the keynote for our graduation. It was good to read about her recent activities!

Super Resilient Protein Structures Preserved a Chunk of Brain for 2,600 Years – Wow – what an amazing and surprising find! And there is has been some research to figure out how it managed to be preserved.

Towards Ecophilia: Being hopeful in spite of it all -I enjoyed the pictures and activity descriptions about children in nature.

How US sewage plants can remove medications from waste-water – Using granular activated carbon and ozonation….more than 95% of certain antidepressants and antibiotics can be removed. This is important to help reduce the development of antibiotic resistant bacteria and maybe other environmental harms as well. But it can be expensive.

The oldest person in the world turns 117 – I liked the last paragraph of the story the best: Last year, when Tanaka received her record for the world’s oldest person, she was asked about the happiest moment in her long life. Her reply was simple: “Now.” Wouldn’t it be great if we all could feel like that no matter how old we are!

Gleanings of the Week Ending January 18, 2020

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Earth at Night – This is an eBook from NASA that was last updated in December 2019….lots of pictures of the earth at night, analysis, and the technology behind the images.

Genomes Sequenced for Every US and Canada Butterfly | The Scientist Magazine® - Work by an evolutionary biologist at University of Texas Southwestern Medical Center. 845 butterfly species were studied.

Adding copper strengthens 3D-printed titanium -- ScienceDaily – Current titanium alloys used in 3D printing were prone to cracking and distortion. The copper alloy seems to overcome that problem.

When the best way to take notes is by hand - BBC Future – I like to take notes by hand….it always seemed easier to me than using a laptop (although I tried using a laptop to take notes in meetings during my career). Now it seems that it is better for internalizing concepts too. No need for me to try to change to anything else!

Blue Whales’ Hearts Can Beat Exceptionally Slowly | The Scientist Magazine® - As low as 2 times per minute! The high was 37 beats per minute.

Image of the Day: Ochre Paint | The Scientist Magazine® - Evidently ancient people heated aquatic bacteria mats growing in iron rich water to make a bright red paint which was used for rock art. The paint contains microfossils of the bacteria (Leptothrix ochracea). The red color is highly thermo-stable…something that has applicability to manufacturing.

Crows could be the smartest animal other than primates - BBC Future – Clever crows. Not so long ago we thought humans were the only ones to make and use tools.

Incredible Winners of the 2019 EPSON International PANO Awards – Panoramic photographs…a little eye candy for the week.

Trashed farmland could be a conservation treasure -- ScienceDaily – Interesting idea…but how much land is in this category and what happens to the people that are still trying to eke out an existence on that land.

Future For Silversword Plants At Halaeakalā National Park Dark – Rare plants…have not recovered as well as the Nene (Hawaiian goose) – for several reasons. Plants around the world are having to adjust to changing climate and some will not be able to change fast enough to continue to exist in the same places…some may become extinct. I hope the Silversword survives.

Maryland Water Monitoring Council Annual Conference

The 25th MWMC Annual Conference was held last week. It was my third time to attend and it was, once again, a great opportunity to catch up on water-related research and Maryland specific plans, activities, and accomplishments. The two themes in the sessions I chose to attend were watershed health and remote sensing. I am hoping the agenda with links for the presentation material will come out soon since my note taking is not all that legible.

I also enjoyed the vendor tables. One of the companies that did the stream restoration at Howard Country Conservancy’s Davis Branch had a table – and a post card picturing the project (before last summer’s drought)!

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One vendor had a great ‘Got Bugs? Banner and another had macroinvertebrate stickers.

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There were other giveaways too – lip balm, pens, a frog shopping bag, and a folding card Field Guide to Aquatic Macroinvertebrates.

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The conference was the largest every – with over 600 attendees.

Gleanings of the Week Ending July 6, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Older forests resist change, climate change, that is -- ScienceDaily  - A study from the University of Vermont. But there are a lot of other changes in the forest too – the advent of non-native diseases like emerald ash borer and the explosion of deer populations so that there is a lot less understory in the forest (and few young trees). Is the net still that old forests resist change more effectively than younger ones?

Top 25 Wild Bird Photographs of the Week: June – National Geographic Society Newsroom – The always beautiful series of bird pictures.

Expanding the temperature range of lithium-ion batteries ScienceDaily – I’ve noticed the battery in my Prius Prime does not last for as many miles in the winter as it does in the summer. It’s one of the issues I want improved before I buy my next EV.

Chattanooga Becomes First U.S. Airport to Run Entirely on Solar – YaleEnvironment360 – Congrats to Chattanooga on this milestone. Evidently the first airport to do it was Cochin International in Kerala, India which went 100% solar powered in 2015. I’ve noticed a lot of US airports have fields of solar arrays…but maybe they haven’t also installed batteries to make the airport 100% solar powered.

You Can Now Tour the Tunnels Beneath Rome’s Baths of Caracalla – Smithsonian – A little Roman history linked to a place where tons of wood were burned per day to keep the fires going so that the caldarium would have hot water…where 18.5 gallons of water per second were consumed…copper tanks and lead pipes.

Timed release of turmeric stops cancer cell growth – ScienceDaily – Part of the search for gentler treatments for children with osteosarcoma.

A Tale of Contrasting Rift Valley Lakes – NASA Earth Observatory – Lake Tanganyika and Lake Rukwa as viewed from NASA’s Aqua satellite.  Deep and shallow. Salty and fresh. Brown and Blue.

Alibates Flint Quarries National Monument: Holding History in Your Hand – National Parks Traveler – I had to look up where Alibates Flint Quarries National Monument is located. It’s in the panhandle of Texas, north of Amarillo. I might go someday…on the way to somewhere else. The route would probably pass through the small western Oklahoma town where I was born.

Grand Canyon will soon be a dark sky park – Smithsonian – The park service has retrofitted lights to make it happen. This could be a good reason to camp in this national park!

What does the dust in your home mean for your health? – The Conversation – Thought provoking post. About one third of the ‘dust’ is created inside by ourselves and our pets, food debris, fibers from carpet/fabrics, particles from cooking plus chemicals like flame retardants. Are they toxic? There is ongoing research. Re outdoor sources – lead is the one of most concern.

Gleanings of the Week Ending June 1, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Flu virus' best friend: Low humidity -- ScienceDaily – Yet another reason to have a good humidifier in our homes during the winter.

Top 25 Wild Bird Photographs of the Week: Seabirds – National Geographic Society Newsroom – I saw a few of these during the Cape May trip in May: American Oystercatcher, Northern Gannett, Laughing Gull, and Forster’s Tern.

Novel 5-minute workout improves blood pressure, may boost brain function -- ScienceDaily – Preliminary results….have to wait to see if it holds up. It would be great to have another option than medication (that often has side effects).

More Megalithic Jars Mapped in Laos and A Singular Landscape - Archaeology Magazine – Plain of Jars in Laos. The jars were created 1,500 to 2,500 years ago. Excavations are revealing a bit more about the people that created them.

Common food additive found to affect gut microbiota: Titanium dioxide nanoparticles E171 may impact human health -- ScienceDaily – It’s a whitening agent used in foods and medicines in high quantities. I checked the jar of mayonnaise in my refrigerator and it didn’t list it on the ingredients list but evidently some brands do contain titanium dioxide. Maybe I will cut back on the mayo.

Solar System and Beyond Poster Set | NASA Solar System Exploration - Beautiful posters suitable for printing in 11x17 format.

Ancient Egyptians Enjoyed Sweet Watermelons - Archaeology Magazine – All melons in ancient Africa were not the bitter cucurbitacins found wild in Africa today!

Walnuts may help lower blood pressure for those at risk of heart disease -- ScienceDaily – Walnuts are tasty too.

The Bird Conservation Program You’ve Never Heard Of (And the Birds It Saves) – Cool Green Science – Going beyond the Migratory Bird Treaty Act to improve neotropical habitat the birds require during their annual migrations.

Escaped pet parrots are now naturalized in 23 US states, study finds -- ScienceDaily – 25 species! They are not native to North America, but many are thriving, and those populations become critical to the survival of their species.

Gleanings of the Week Ending March 23, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Salt Could Play a Role in Allergies | The Scientist Magazine® - Atopic dermatitis has increased more than 2-fold since the 1970s….and researchers do not attribute the increase to greater awareness or diagnosis. Now comes the observation that people with lesioned skin from atopic dermatitis (but not psoriasis) had a 30-fold higher salt level in their lesions than in their unlesioned skin or skin from healthy controls. The connection to diet is speculative at this point…but we do have higher salt in our diet now that most people had in the 1970s.

In Siberia, Toxic Black Snow Reveals the Toll of Coal Mining | Smart News | Smithsonian – Yuck! Pollutions from open-air coal pits…in the extreme. Another reason, I’m glad we’re moving away from coal powered electricity generation. I wondered if the people living in the area of black snow develop terrible lung problems.  

See the best pictures from Bill Ingalls, NASA's official photographer – 30 years of photography

What makes joints pop and crack and is it a sign of disease? – A little lesson in joint anatomy

Piling Up: How China’s Ban on Importing Waste Has Stalled Global Recycling - Yale E360 – China’s plastic imports have plummeted by 99%, mixed paper has dropped by a 33%. Recycled aluminum and glass are less affected by the ban. So now we are sending plastics to landfills, incinerators or littering the environment. Communities across the US have curtailed or halted their recycling programs. That hasn’t happened (yet) where I live in Maryland. We must learn to produce less recycle (waste) and process it more locally…not ship is someplace else in the world.

Meet the Bizarre American Bittern – Cool Green Science – It’s a type of heron that makes a strange sound (listen to the recording in this post). It is so well camouflaged that you are more likely to hear it than see it!

Photography in The National Parks: Capturing the Grandness of The Grand Tetons – Reminds me that this is a National Park I want to see again. Last time we went, I wasn’t doing any photography yet.

Top 25 Wild Bird Photographs of the Week: Interactions – National Geographic Society – Pictures that are more than just a bird.

Prehistoric Microbes Inhabit an Oasis in the Northern Mexican Desert | The Scientist Magazine® - Fish, diatoms, and bacteria in lagoons in the Chihuahua Desert and cannot be found anywhere else on Earth. More than 5,000 species of bacteria and archaea have been documented.

Owls against owls in a challenge for survival: Researchers forecast interactions between two owl species and the quality of their habitat in the Pacific Northwest -- ScienceDaily – I learned at the Festival of the Cranes (New Mexico) last fall about Barred Owls moving into Northern Spotted Owl (NSO) territory….and winning the competition. That further reduces the NSO populations which is already endangered because of over-logging of the old growth forests.

Gleanings of the Week Ending October 27, 2018

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Earth Matters - New Tools to Boost Access to NASA Earth Science Data – How NASA is using big data strategies to streamline processing time to get the information from satellites into usable form.

Trend of the Month… asocially| What's Next: Top Trends – Richard Watson noticing that some people prefer to be left along to look at their devices.

Image of The Day: Open-and-Shut Case | The Scientist Magazine® - They used box turtles in this research….a turtle we see here in Maryland relatively often.

Top 25 Wild Bird Photographs of the Week: Migratory Birds 2 – National Geographic Blog – Tis the season for bird migration!

BBC - Future - Should everyone be taking vitamin D? – It’s not clear cut. In the winter we probably don’t get enough Vitamin D from diet/sunlight…but the impact of that shortage is not obvious in many people. There are some trials that are ongoing that may provide some answers.

Why the Current Hurricane Rating System Needs to Be Scrapped - Yale E360 – Hurricanes are rated based on wind-spead….but storm surge and flooding for rain (coastal and inland) also causes damage. Hurricane Florence is an example of a Category 1 storm causing tremendous damage even though it wasn’t a ‘major’ hurricane.

Detailed maps of urban heat island effects in Washington, DC, and Baltimore | NOAA Climate.gov – Close to home for me since we live between Washington DC and Baltimore (not on either of the two maps).

Well-Preserved Murals Discovered in Pompeii - Archaeology Magazine – Finding new things in a site that has been studied for many years.

Surprising places where germs lurk in bathrooms | Berkeley Wellness – Hmmm…maybe we should add some tasks to cleaning the bathroom.

Nikon Small World photo competition reveals nature in minuscule detail | New Scientist – The beauty in the microscopic world. I want to look more closely at spittle bugs next spring…see if I can see the bug.

Gleanings of the Week Ending September 22, 2018

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Curiosity rover surveys a mystery under dusty Martian skies -- ScienceDaily – What makes Vera Rubin Ridge so hard?

The Environment's New Clothes: Biodegradable Textiles Grown from Live Organisms - Scientific American – ‘Growing clothes’ that are sustainable – very different form the current fashion industry.

Change your diet to save both water and your health -- ScienceDaily – Research that looked at the water footprint (the volume of freshwater to produce goods) relative to types of diets. It turns out that many of the foods that take a lot of water to produce also are overconsumed – in the EU where the study was done and maybe even mores o in the US.

How the People of Pompeii Really Died - The Atlantic – New technology looked at bones and teeth of the 19th century plaster casts from Pompeii. Two surprises: they had good teeth, and many died of head injures rather than suffocation.

A Great Brown Storm Is Raging on Jupiter – It’s not like the red spot. They come and go and Jupiter. This time NASA’s Juno spacecraft is there to monitor its progress and show more of its structure.

One big reason why women drop out of doctoral STEM programs: The fewer women in entering class, the less likely they'll stay -- ScienceDaily – This study ruled out grades and funding as the main reason….the academic climate for women is not only harder to measure, it’s also harder to change.

First evidence that soot from polluted air is reaching placenta -- ScienceDaily – There is a health cost for burning fossil fuels…and it begins to impact us before we are born. Previous research had linked air pollution with premature birth, low birth weight, infant mortality, and childhood respiratory problems. This research was focused on determining if the particles in the lung – breathed by the mother -  can circulate through the blood to the placenta.

Top 25 Wild Bird Photographs of the Week: Gamebirds – National Geographic – Peacocks are considered game birds!

Total of 21 new parasitoid wasps following the first ever revision of their genus -- ScienceDaily – The first revision since 1893…and using specimens from 20 natural history museums.

Something Blue | The Prairie Ecologist – Blue sage…insect magnet.

Gleanings of the Week Ending June 16, 2018

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Reading habits in the past | Europeana Blog – When I travel, I tend to do most of my reading on my phone (light weight, easy to carry, and ambient light does not have to be good). It’s a recent development for me. This blog post goes back further in history.

Man against machine: AI is better than dermatologists at diagnosing skin cancer -- ScienceDaily – There are still limitations to the AI but it might be close to a tipping point to begin transitioning into system. It seems like it would be most in demand for screening where there were not highly trained dermatologists available….as long as the imaging technology was not tremendously expensive or hard to use.

BBC - Future - Is it really healthier to live in the countryside? – I thought it would be…but it’s complicated because so many factors contribute to ‘health.’

Mapping Modern Threats to Ancient Chacoan Sites : Image of the Day – Posts about places I’ve visited always get my attention. A study using satellite data and projections for population growth/oil and gas exploration in the area shows that 44 of the 123 known Chaco sites included in the study are threatened by development. Of those, 19 are already protected by the National Park Service.

Paper Art Details Similarities Between Human Microbiome and Coral Reef – Nature inspired art!

Researchers Grow Veggies in Space | The Scientist Magazine® - Progress in a technology required for longer space missions…and then colonies on other planets.

Schoolyard Habitats Provide Resiliency in Houston Independent School District : The National Wildlife Federation Blog – Schools in Maryland have similar projects. I hope the monarchs have shown up in Houston…I haven’t seen any in Maryland yet this year.

US Still Subsidizing Fossil Fuels To Tune Of $27 Billion | CleanTechnica – This post included more detail on what subsidies are…how the US compares to other developed countries.

Thank A Rare Fungus For The Sustainable Solar Cell Of The Future | CleanTechnica – It’s a beautiful color…if it really works, it won’t be ‘rare’ for long. It will be come a commercially grown fungus!

Bright warning colors on poison dart frogs also act as camouflage -- ScienceDaily – Learning a bit more about these little frogs.

Gleanings of the Week Ending May 26, 2018

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

The Secret Science of Shell Seeking – Shells and Sanibel, Florida. Hopefully the sea will not become so acidic that shellfish become less numerous over time.

Old sea ice continues disappearing from the Arctic Ocean | NOAA Climate.gov – Quite a difference in the amount of old sea ice between 1984 and 2018. It’s tough to be a polar bear or any other creature that depends on sea ice.

The secret to honing kid’s language and literacy -- ScienceDaily – Children need enough sleep, playing games, and time without distractions in the background as well as having books read to them…to encourage language and literacy development.

Compound Interest - The chemistry behind how dishwashers clean – The post didn’t address why glass becomes etched by dishwashers over time…so I was a little disappointed. Otherwise, seemed to cover the bases.

Twin Satellites Map 14 Years of Freshwater Changes: Image of the Day – Analysis of observations from multiple satellites to determine where freshwater is changing on Earth. One of the sources of data was GRACE (Gravity Recovery and Climate Experiment) that collected data through 2017. The follow-on was launched this past week (on May 22) - Meet NASA’s New Dynamic Duo: A Pair of Climate Change-Tracking Satellites | Smart News | Smithsonian

Fox Photos Capture the Diverse Personalities of the Wild Animals – We occasional see fox around – entering or leaving the forest behind our house. I’ve never managed to photograph one.

BBC - Future - Pain bias: The health inequality rarely discussed – I’m glad I am healthy….but wonder what will happen if I ever do need medical attention. This post is part of series from BBC Future about how men and women experience the medical system differently.

Climate change broadens threat of emerald ash borer -- ScienceDaily – Here in Maryland, our ash trees are dying now. Many have been cut down this year.

Buyer beware: Some water-filter pitchers much better at toxin removal: Study finds some purifiers remove twice the microcystins from risky water -- ScienceDaily – Evidently the slower filters (and often more expensive) do a better job.

Thomas Jefferson and the telegraph: highlights of the U.S. weather observer program | NOAA Climate.gov – A little history of weather observations in the US….the earliest being in the 1640s. Thomas Jefferson bought his first thermometer about the time he wrote the Declaration of Independence and his barometer about the time he signed it….and maintained records until 1816. George Washington also took regular observations….the last entry being the day before he died.

Gleanings of the Week Ending May 5, 2018

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Top 25 Birds Protected by the MBTA – National Geographic Blog – The Migratory Bird Treat Act was passed in 1918…and covers over 1000 species. Enjoy pictures of 25 of them!

Atlantic Ocean circulation at weakest point in more than 1,500 years -- ScienceDaily – Something else that could cause more rapid increase in sea level rise on the US East Coast.

Spring Sediment Swirls in the Great Lakes – Image from April 20th after a storm. The areas are the lakes are losing soil.

NASA planet hunter on its way to orbit: Transiting Exoplanet Survey Satellite successfully launched -- ScienceDaily – Hurray! TESS was launched on April 18th…and should be ready to begin work something in June.

Compound Interest - The chemistry of tulips and tulip fingers – After seeing the tulips display at Brookside…this article caught my attention. I didn’t notice if the gardeners taking up the bulbs were wearing gloves…or whether they were the right kind.

Dark chocolate consumption reduces stress and inflammation: Data represent first human trials examining the impact of dark chocolate consumption on cognition and other brain functions -- ScienceDaily – I like dark chocolate. It’s a good thing that it has positive health benefits but I would probably still eat it even it didn’t.

Which US Generation Has the Best Eco-Conscious Habits? A Survey+ | CleanTechnica – Boomers, Gen-Xers or millennials. It’s a clever way to highlight ways to become more eco-conscious.

On The Hunt For The Elusive Morel Mushroom In Ohio’s Appalachian Country: The Salt – Morel mushrooms are tasty….enough that people keep their spots secret and turn off their GPS locators when on the hunt!

These Are the Cities With the Worst Air Pollution | Smart News | Smithsonian and Compare Your Air | American Lung Association – Read the summary from the Smithsonian blog then go to the American Lung Association site to compare cities. Where I live gets and ‘F’ for Ozone.

Diseases from Ticks and Mosquitoes Have Tripled | The Scientist Magazine® - Lyme Disease and Zika have caused a lot of the increase.

NASA Visitor Center

Back in the early days of HoLLIE classes, we met in the parking lot of the NASA Goddard Visitor Center before going to our class; it was before it opened so I wanted to go back to see the visitor center exhibits. Last week – it happened. It was a cloudy morning with rain in the forecast. The center opens at 10 and I was there a few minutes afterward. There were only a couple of other early visitors.

I decided to do the outdoor Goddard Rocket Garden and Astobiology Walk first – since I wasn’t sure the weather would stay dry. Did you know that grooved pavement used for airport runways and other pavements was the result of a NASA Wallops Island study from the 1960s?

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I took a lot of pictures of the astrobiology walk and made a slide show of them below (use the arrows to go through at your own speed).

My favorite displays were the two showing banded iron specimens.

Inside – there was a full-side mechanical prototype of the Lunar Reconnaissance Orbiter (LRO). We saw the operational control room for the mission during the HoLLIE class. It’s quite a thrill to know that the mission is ongoing – knowing that my daughter was an undergraduate at Cornell when LRO reached the moon and she helped with some of the initial image calibration since she had developed calibration skills in her part-time job calibrating images from the Mars rover.

There was also an exhibit of the new James Web Space Telescope – comparing its mirror with the one on the Hubble Space Telescope.

There was also a fun exhibit with two cameras and monitors. One was an infrared camera. It picked up the residual heat from ones feet on the carpet as one walked away from its field of view!

I bought a Cassini Grand Finale t-shirt for my daughter at the gift store; she used some data from Cassini for a couple of papers while she was an undergraduate. Hurray for good experiences!

HoLLIE – week 3

The Week 3 of  HoLLIE (Howard County Legacy Leadership for the Environment) class day was last week and it was held at NASA Goddard like the second week. The theme for the day was continued from last week: “what informed citizens need to know about earth systems science.”

The first talk of the day as about ice sheets and included a discussion of the speakers trek to the South Pole last year. Check out her ICESat-2 Antarctic Traverse Blog (The first post is from December 4, 2017. If you want to start with that one and read in chronological order, scroll down to the bottom of this page until you get to ‘Heading South, to New Zealand and Beyond.’ Then after reading the ‘South Pole Station: The Last Stop Before the Traverse’ beginning at the top of the page, click on ‘newer entries’ to read the rest of the of the posts – and again start with the post at the bottom of the page and work up). She spent Christmas at the South Pole!

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She recommended a book that I found could be checked out from Internet Archive when I got home: The two-mile time machine by Richard B. Alley. The book is about the annual rings of ice from cores drilled in Greenland and what they tell us about Earth’s climate over time.

The second talk was about the Land-Based Hydrology Cycle. This talk included what we can learn from satellites but also what measurements are taken on land too (and how much effort that takes…to get even sporadic data). With fresh water being so key to life – the very highs (floods) and very lows (droughts) are major impact all around the world.

The third talk was about the Black Marble project…about what we can learn from looking at the earth at night. Back in April there was good summation of the project – to create the images more frequently so that they could be used more even more applications (like short-term weather forecasting and disaster response): New Night Lights Maps Open Up Possible Real-Time Applications - https://www.nasa.gov/feature/goddard/2017/new-night-lights-maps-open-up-possible-real-time-applications; take a look at the map of India midway through the article and slide the vertical bar to the see how the northern part of the country was electrified between 2012 and 2016. There is more at https://earthobservatory.nasa.gov/Features/NightLights/.

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The fourth talk was about how the Montreal Protocol saved the earth’s ozone layer. I knew the protocol concerned Ozone and CFCs….but didn’t realize any more history than that. The timing of a report that linked CFCs to ozone depletion just before the ‘hole’ was discovered in the ozone layer (a major change from measures of ozone for many years beforehand) over Antarctica made for a dramatic beginning to the conversation. It has been effective because governments engaged industry that provided substitutes (some transitional) that made it possible to move away from compounds that were ozone damaging in the stratosphere.

Next we visited NASA’s Scientific Visualization Studio – seeing some of their recent work on a wall sized screen. Here are some web versions of what we saw in the studio:

NASA's Near-Earth Science Mission Fleet: March 2017

Global Temperature Anomalies from 1880 to 2017

Weekly Animation of Arctic Sea Ice Age with Two Graphs: 1984 - 2016

Previous HoLLIE posts: Week 1, Week 2