David Harvey
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David Harvey
@topladave.bsky.social
I am ever curious, always learning, silly, smart, and creative. I've been everything from a museum blacksmith to an archaeologist, historian, conservator, museum consultant, author, videographer, teacher of online courses. I have walked a wonderful path.
Trump's America: Teddy Roosevelt is turning over in his Grave.
February 19, 2026 at 4:32 PM
Reposted by David Harvey
Record warmth followed by a huge snowfall led to the recent avalanche that killed at least eight skiers
Why warming weather can cause deadly avalanches like Lake Tahoe
Record warmth followed by a huge snowfall led to the recent avalanche that killed at least eight skiers
www.scientificamerican.com
February 18, 2026 at 10:08 PM
Reposted by David Harvey
Exotic black hole stars could explain the mystery of Little Red Dots

Astronomers are racing to understand mysterious ancient objects that pepper James Webb Space Telescope images

www.scientificamerican.com/article/what...
Weird ‘Little Red Dots’ in space are something we’ve never seen
Astronomers are racing to understand mysterious ancient objects that pepper James Webb Space Telescope images
www.scientificamerican.com
February 19, 2026 at 2:13 PM
The ex-President's quick-fire-round answer has led to a flurry of comments.

www.iflscience.com/obama-said-a...
Obama Said Aliens Are Real – And He’s Right (Sort Of), But No, It’s Not About Area 51
The ex-President's quick-fire-round answer has led to a flurry of comments.
www.iflscience.com
February 19, 2026 at 4:01 PM
When it comes to seismic activity, the Moon isn't dead yet.

www.iflscience.com/the-moon-is-...
The Moon Is Definitely Shrinking, Newly Found Geological Features Confirm
When it comes to seismic activity, the Moon isn't dead yet.
www.iflscience.com
February 19, 2026 at 3:59 PM
“Just one of those true wonders of nature.”

www.iflscience.com/this-is-the-...
This Is The First Shark Ever Filmed In Antarctic Waters – "One Of Those True Wonders Of Nature"
Fancy seeing you here.
www.iflscience.com
February 19, 2026 at 3:52 PM
As outbreaks of the virus are hitting the headlines, we break down how it spreads.

www.iflscience.com/just-how-con...
Just How Contagious Is Measles? More So Than Ebola, COVID-19, Or Even Smallpox
As outbreaks of the virus are hitting the headlines, we break down how it spreads.
www.iflscience.com
February 19, 2026 at 3:51 PM
China has planted billions of trees since the 1970s.

www.iflscience.com/chinas-3046-...
China Has Planted So Many Trees That It's Largest Desert Now Absorbs More Carbon Dioxide Than It Pumps Out
China has planted billions of trees since the 1970s.
www.iflscience.com
February 19, 2026 at 3:47 PM
Veins in the skull can rearrange their borders to accommodate patrolling immune cells

www.nature.com/articles/d41...
How ‘skull drains’ keep the brain safe from damage and pathogens
Veins in the skull can rearrange their borders to accommodate patrolling immune cells, a strange behaviour called ruffling.
www.nature.com
February 19, 2026 at 3:45 PM
Nature research paper: Rising atmospheric CO2 reduces nitrogen availability in boreal forests

www.nature.com/articles/s41...
Rising atmospheric CO2 reduces nitrogen availability in boreal forests - Nature
Nitrogen isotope tree-ring chronologies show that rising atmospheric CO2 has reduced nitrogen availability in boreal forests in Sweden, suggesting that elevated atmospheric CO2 is causing oligotrophic...
www.nature.com
February 19, 2026 at 3:44 PM
Nature research paper: The natural architecture of oyster reefs maximizes recruit survival

www.nature.com/articles/s41...
The natural architecture of oyster reefs maximizes recruit survival - Nature
Survival of reef-building oysters peaks at specific combinations of fractal dimension and height that reduce predation, showing how optimal three-dimensional habitat geometry can guide more effec...
www.nature.com
February 19, 2026 at 3:43 PM
Nature research paper: Laser writing in glass for dense, fast and efficient archival data storage

www.nature.com/articles/s41...
Laser writing in glass for dense, fast and efficient archival data storage - Nature
An optical archival storage technology based on femtosecond laser direct writing in glass addresses the practical demands of archival storage.
www.nature.com
February 19, 2026 at 3:38 PM
They screened nearly every gene in the human genome.

www.sciencealert.com/some-brain-c...
Some Brain Cells Resist Dementia, And Scientists Finally Know Why
Some brain cells can resist the toxic processes associated with Alzheimer's disease and other forms of dementia.
www.sciencealert.com
February 19, 2026 at 3:34 PM
Since their discovery in the early 21st century, giant viruses have drawn fascination.They have overturned the traditional view of viruses, triggering debates about everything from the definition of life to the evolution of complex organisms.
Giant viruses hijack their hosts’ protein factories
Researchers identify a complex that hands mimivirus control of protein synthesis in infected amoebae
scim.ag
February 19, 2026 at 3:32 PM
The spread of agriculture didn’t just change our diets—it altered our jaws as well, making it easy to pronounce "f"s and "v"s and opening a whole new world of words.

Learn more on #WorldAnthropologyDay: scim.ag/4rEx0hq
Ancient switch to soft food gave us an overbite—and the ability to pronounce ‘f’s and ‘v’s
How farming reshaped our smiles and our speech
scim.ag
February 19, 2026 at 3:28 PM
How do busy bees avoid overheating from flying?

New measurements could help predict pollinators’ ability to withstand climate change. Learn more: scim.ag/4c2FV7V
How do busy bees avoid overheating from flying?
New measurements could help predict pollinators’ ability to withstand climate change
scim.ag
February 19, 2026 at 3:27 PM
There it is.
Other Countries can do it. Ours Can't.
February 19, 2026 at 1:31 PM
Your Daily Gem from Matthew Dowd.
happy bday writer Carson McCullers, b.1917, Columbus, GA.

“We are torn between nostalgia for the familiar and an urge for the foreign and strange. As often as not, we are homesick most for the places we have never known.”

“The closest thing to being cared for is to care for someone else.”
February 19, 2026 at 1:28 PM
Your Thursday Morning Zen.
This is Archie. He just came from an epic day of zoomies and fetch at the park. Now waging a heroic battle against sleep in the backseat.
February 19, 2026 at 12:06 PM
Your Thursday Morning Effin' Social Media.
February 19, 2026 at 12:05 PM
Your Truth of the Day.
February 19, 2026 at 12:04 PM
Hahaha!
February 19, 2026 at 12:03 PM