Gleanings of the Week Ending July 12, 2025

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.

How Has U.S. Energy Use Changed Since 1776? – Historical perspective. Coal, petroleum and natural gas did not surpass renewables (i.e. wood) until 1885!

Is this the end for Easter Island's moai statues? – The moai are made from tuff, a volcanic rock largely composed of compressed ash. This type of stone is porous and unusually soft. The wind and rain do not treat it kindly. Weathering of the moai appears to have increased sharply during recent decades; drier weather followed by very heavy rains, more wildfires, rising sea level  and increased wave event have all contributed.

20 Incredible Nominees for the BigPicture Natural World People’s Choice Award – Some great photography.

In Yellowstone, Even Animals Sometimes Make Mistakes – A bison stumbled into Grand Prismatic Spring…and there was no happy ending.

London Inches Closer to Running Transit System Entirely on Renewable Power - London will source enough solar power to run its light railway and tram networks entirely on renewable energy. The deal brings Transport for London closer to its goal of running its entire transit system, including its sprawling underground railway network, on renewable energy by the end of this decade.

Time For Canada to Dump the Big Three & Go Electric with China – Something valid for Canada to consider…certainly more forward looking than subsidizing old technologies.

The end of tuberculosis that wasn’t - In the late 1980s, many thought the fight against tuberculosis (TB) had been won. A disease that had plagued humans for at least 9000 years was on the path to being eliminated. Three factors raised concerns about the resurgence of tuberculosis in the United States and rich countries in Europe in from mid-1980s and 1990s: HIV/AIDS epidemic, the rise in drug-resistant tuberculosis, and higher rates of TB in foreign-born populations.

The US’s asbestos U-turn: why the Environmental Protection Agency is reconsidering its ban - Each year, around 40,000 deaths in the US and about 5,000 in the UK are attributed to asbestos exposure. If the US ban is lifted, it’s possible that the number in the US could increase over the coming decades while those in the UK will continue to fall. While global consensus moves toward stricter regulation, the US now finds itself at a crossroads, between scientific evidence and pressure from industry.

Inside Egypt’s Enigmatic $1 Billion Grand Museum - During a press conference on June 14, Egyptian Prime Minister Mostafa Madbouly said the official opening was postponed due to “current regional developments”—loosely referring to the then-escalating conflict between Israel and Iran.

These Colorful Satellite Views Reveal Our Forests in Unprecedented Detail and Showcase the Potential of the New Biomass Mission - The European Space Agency’s satellite will measure trunks, branches and stems in forests to shed light on how much carbon is stored in trees across various continents. The example image of the Beni River in Bolivia shows a lot of oxbow lakes!

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.

Gleanings of the Week Ending March 14, 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.  

Shrikes: Meet the Bird That Impales Prey on Spikes – The bird creates its “pantry” on barbed wire…other spikey objects. Gruesome…but it’s an adaptation that works for the bird.

The color of your clothing can impact wildlife - ScienceDaily – For water anoles – orange is better than green if you want to see the lizards!

We're Destroying Virgin Forests for Toilet Paper -- What Are the Alternatives? | CleanTechnica – Not good! We in the US are the biggest users…change is hard.

Why Clouds Are the Key to New Troubling Projections on Warming - Yale E360 – Fewer clouds as the planet warms? If so, we’ll heat up more because more solar energy will strike the planet. That’s what the most recent models are predicting and real-world data from satellites suggests that the modelers’ predictions may already be coming true. We’ll have less snow and ice around too to reflect solar energy back into space. It seems like we should make all sky facing manmade surfaces (like roofs) white or lighter colored (unless they are generating energy)…and look for other opportunities to reflect like clouds.

New Research Rewrites the Demise of Easter Island | Smart News | Smithsonian Magazine – There is mounting evidence that Easter Island people created the statues until at least 1750 – after contact with Europeans. And their population has been relatively stable since the 1400s. By the time the British explorer James Cook arrived in 1774 the statues were in ruins. By 1877, just over 100 people remained on Easter Island.

How do woodpeckers avoid brain injury? – Woodpeckers avoid concussions with some adaptions: 1) specialized skull bones, neck muscles, beaks and tongue bones 2) less internal fluid surrounding their brain to limit the motion of the brain during pecking. Interesting…and maybe can help devise ways to protect and heal human brain injuries.

Anti-solar cells: A photovoltaic cell that works at night -- ScienceDaily – Some research…potentially a way to balance solar power over the day-night cycle.

How did the last Neanderthals live? - BBC Future – From caves in Gibraltar….the insight that they were much more like us than we once believed: they exploited seafood and marine mammals (they could swim…hunted dolphins), wooly mammoths, woolly rhinos, ibex, birds (maybe used their feathers…particularly the black ones); they decorated walls and shells; their hyoid bone was like ours (which means they might have had speech like ours); they made tools of bone that were copied by modern humans.

Florida scientists study health effects from exposure to toxic algae - UPI.com – Blue-green algae toxins make people sick (liver damage/disease, skin rashes, headaches, trouble breathing) but does it cause disease when it is absorbed via breathing (i.e. airborne particles) during algae blooms? Fish kills are bad too. It’s good to research the topic but shouldn’t we do everything we can to prevent the blooms in the first place?

Researchers Find Cell-Free Mitochondria Floating in Human Blood | The Scientist Magazine® - Surprise! Now to figure out their function….

3 Free eBooks – January 2019

The eBooks I am featuring in January are about topics that are well known today….but books from quite a few years ago.

Capart, Jean. Tout-Ankh-Amon. Bruxelles. 1943. Available from Internet Archive here. King Tut artifacts in a lavishly illustrated (photos) book from 1943 by a Belgian Egyptologist. I wondered how well the book sold or was it just like his other books. Internet Archive has some of his other books as well.

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Heyerdahl, Thor. The Art of Easter Island. New York: Doubleday & Company. 1975. Available from Internet Archive here. I remember when Heyerdahl was in the news about Easter Island…his investigation of how the stone heads were made and moved. I had never seen the book before, so it was a kind of closure. And about the same time, I was looking at this book, there was an item in my news feeds about Easter Island statues may have marked sources of fresh water.

Lofting, Hugh. Doctor Dolittle’s Return. London: Jonathan Cape. 1933. Available from Project Gutenberg Canada here.

Most people are familiar with the movies but maybe not the books. Lofting illustrated his books himself too. The books started as letters to his children during World War I – the war being too horrible or boring to write about. There is a better biography for Hugh Lofting than Wikipedia’s here. If you are interested in more of his books, here’s the complete list of his books available from Project Gutenberg Canada:

The Story of Doctor Dolittle (1920) [Novel; with an introduction (1922) by novelist Hugh Walpole (1884-1941) Wikipedia] HTML HTML zipped Text Text zipped Wikipedia
The Voyages of Doctor Dolittle (1922) [Novel] HTML HTML zipped Text Text zipped Wikipedia
Doctor Dolittle's Post Office (1923) [Novel] HTML HTML zipped Text Text zipped Wikipedia
Dr. Dolittle's Circus (1924) [Novel] HTML HTML zipped Text Text zipped
Dr. Dolittle's Garden (1927) [Novel] HTML HTML zipped Text Text zipped
Dr. Dolittle in the Moon (1928) [Novel] HTML HTML zipped Text Text zipped
Dr. Dolittle's Return (1933) [Novel] HTML HTML zipped Text Text zipped