Gleanings of the Week Ending July 5, 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.

See the Face of a 10,500-Year-Old Woman, Reconstructed by Archaeologists and Artists – Based on well-preserved ancient DNA.

Rare, Mind-Bending M.C. Escher Works Are Up for Auction - Escher was a skilled artist who seamlessly bridged the worlds of art, mathematics, and science in the mid-20th century. Today, his influence remains as important as ever, with a fascinating body of work that continues to mesmerize and inspire minds across the world.

As Wind and Solar Grow, China Ships More Coal Overseas - Analysts say the era of “more renewables, more coal” in China is over, with solar and wind now set to displace coal, rather than supplement it. Even under conservative assumptions coal generation in China could soon peak and enter structural decline.

Work, wages and apprenticeships: sifting for clues about the lives of girls in ancient Egypt - Elephantine, a town at Egypt’s southern frontier near modern-day Aswan, provides a unique window into the urban life of some girls who worked in textile workshops during the ancient Egyptian Middle Kingdom, which dates approximately 2030–1650 BCE. Girls received payment for their labor. It also suggests a structured apprenticeship system where young girls (and boys) worked alongside experienced craftswomen. Historians must always look beyond elite contexts to incorporate diverse evidence types – administrative documents, archaeological remains, and artistic representations – to construct a more complete picture of ancient lives.

Earth’s Clouds on the Move - Clouds are common on Earth, but they are ephemeral and challenging to study. Remote sensing has helped scientists tremendously by enabling consistent, global tracking of the elusive features, even over inaccessible areas like the poles and open ocean. Two published studies: 1) Where storm clouds form has changed. The implications for the climate are significant: This has added a large amount of warming to the system. 2) The shift in storm clouds increased the amount of energy absorbed by the oceans by about 0.37 watts per square meter per decade—a substantial amount on a planetary scale. Big question: What has caused the reduction in reflective storm clouds and whether the trend will continue.

Sinkhole Exposes Remnants of Medieval English Hospital - Walls hidden just beneath the city streets that once belonged to the twelfth- or thirteenth-century St. Leonard’s Hospital. The institution was built just after the Norman conquest and replaced the earlier St. Peter’s Hospital, which was founded by the Anglo-Saxon King Aethelstan. It was a place for caring for the unwell, elderly, and the condemned, but also served as an orphanage, helped feed the poor, and provided meals for the prisoners in York Castle. The hospital was destroyed during the Reformation under the reign of Henry VIII.

Lightning Strikes the Arctic: What Will It Mean for the Far North - A warmer world is expected to bring more thunderstorms, especially at higher latitudes. Scientists are now reporting a dramatic surge in lightning in the Far North and are scrambling to parse how this could affect wildfires, the chemistry of the atmosphere, and Arctic ecosystems.

Scavenger Animals Are in Trouble, and That Could Spell Bad News for Human Health - Scavengers are in trouble—and their decline could be harmful to human health. Half of the 17 obligate scavenger species included in the study are considered “vulnerable” or “critically endangered” by the IUCN. When they are reduced in numbers or disappear, some smaller, occasional scavengers are proliferating. These creatures, such as rodents and feral dogs, tend to transmit diseases to humans.

How do sleep trackers work, and are they worth it? A sleep scientist breaks it down - Most modern sleep trackers do a decent job of estimating your total sleep each night. Some are more accurate for sleep staging, but this level of detail isn’t essential for improving the basics of your sleep. Focus on improving your healthy sleep strategies and pay attention to how you feel during the day.

Is an apple a day really good for your health? - Eating an apple a day is great– but only if that is part of a diet rich in various other plant-based foods, since that is a key driver of good health.

Walk at Mt Pleasant – Part 1

I got up at my regular time and was out of the house a few minutes before 6; the sun was up but it was still very much the ‘magic hour’ for photography when I got to Howard County Conservancy’s Mt Pleasant Farm. There were only two other cars and I didn’t see any other people around before I headed out on my walk. I hadn’t been there to walk around since back in January….completely missed the spring which I usually get to observe many times as I volunteer for school field trips that come there…but not this spring. I noted a sign about social distancing and no large groups. The picnic tables looked so pristine and lonely. There would be plenty of space of a group of 10ish to eat lunch far enough apart; it would look odd to me since I am used to the school groups that often ate there after a field trip and were almost always more than 100 people.

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On a positive note – the orchard has fruit this year. In 2019 a late frost caused all the blossoms/newly forming fruit to fail. I thought it might have happened this year too but there are fruits on both the pear and apple trees. The pear might not have edible fruit (I think they are usually bigger by this time)

But the apples have a lot of green fruit that will be begin turning red soon.

The door to Montjoy bar seemed to not fit as well as they did at one time…they sag a little. I wondered how long ago they were painted.

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The trumpet vine was growing profusely over the arbor near the children’s garden. Insects were enjoying the flowers. I made the mistake of walking under it and a bee flew around my head for some distance beyond. Not sure why I was attractive to the bee.

There were lots of meadow plants in bloom – horse nettle, thistles, Queen Anne’s lace, bindweed, a pleated mushroom. Something to photograph at every turn.

I’m not usually keen on landscape pictures but there was mist coming off the ground and it added dimension to the contours of the land. The sun had been up for about 45 minutes. I could already tell that the mist was burning off as I walked…could feel the high humidity.

The bird houses have been refreshed and painted. The background paint is a light blue and then natural things are painted over the blue. It’s a nice change in the meadow even though I also appreciated the old natural wood houses with occasional patches of lichen and moss. There is a sign on the pole cautioning to stay away because they are tree swallow homes. I wonder if they put the signs on after they knew it was a tree swallow using the house rather than a bluebird.

The meadows looked very lush and growing wild. The place looks more overgrown than most summers…and I think it is more than not mowing as much. There are not as many people around. There are even ripe blackberries in the meadow than haven’t been picked. During previous summers, the campers ate blackberries as soon as they were ripe!

The stream seemed to be running more in the channel closest to the beach area rather than the one we used to think was the deeper one. It was running slowly…the last rainstorm already mostly drained off.  It felt a cooler down at the stream in the deep shade.

Most of the milkweed was past blooming with tiny seed pods forming although I did find two flowers– one in the meadow and one in the garden area near the flowerpot people. Both had interesting insects:

Milkweed beetles meeting each other – moving around quite a lot….another insect further down that didn’t move during my picture taking.

There was a bee on the flower in the other garden. I watched it as it went to several small flowers – trying to avoid bee butt pictures!

The rest of my hike report in tomorrow’s post…

Gleanings of the Week Ending June 8, 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.

5 Unusual Species Found in and Around the Everglades - The National Wildlife Federation Blog – I’ve seen two of the 4: the snail kite and wood stork!

Want to reduce single-use plastic in your life? Try these tips from National Geographic Explorer and #ExpeditionPlastic team member Lillygol Sedaghat. – National Geographic Society Newsroom – It’s hard to avoid single use plastics completely….but easy to cut back.

How big data can be used for personal health -- ScienceDaily – Yes – doing a lot of tracking of personal health information and having a baseline might be useful – but it’s not clear (from this article) that it didn’t result in overtreatment. It will be a challenge to match treatments in asymptomatic situations…that may never develop into a health problem. How well do we really understand risks?

BBC - Future - How weeds help fight climate change – And experiment in Australia showing how weeds might help in the process toward sustainable agriculture

Fracking: Earthquakes are triggered well beyond fluid injection zones: Computer model and field experiment data suggest a new link between subsurface injections and earthquake swarms -- ScienceDaily – Oklahoma….in the hot center of man-made earthquakes.

Do additives help the soil? Scientist suggests nature knows what's best -- ScienceDaily – Wow – a whole industry (bio-fertilizers) that is not having the positive effect on crops anticipated….and could have long-term effects on soil that are not positive. Why is the industry surviving?

Blood-squirting insects and more tiny creatures flourish in African park – Gorongosa National Park in Mozambique.

Exploring the origins of the apple -- ScienceDaily – Large fruits developed to attract large animals like wild horses and large deer…..and probably other animals that are now extinct. The modern apple is a hybrid of at least 4 wild apple populations….along the Silk Road.

A Better Route Planner & Other Open Source Projects Need Our Help | CleanTechnica – Technology that needs to mature before Electronic Vehicles become more numerous.

Excessive rainfall as damaging to corn yield as extreme heat, drought -- ScienceDaily – This year there has been too much rain in the corn belt. This story is over a month old but there are still areas of high water. What percentage of the corn fields haven’t been planted yet because they are still flooded?