Astrophysics for People in a Hurry by Neil deGrasse Tyson
https://arunmani.in/library/astrophysics-for-people-in-a-hurry/
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Astrophysics for People in a Hurry by Neil deGrasse Tyson
https://arunmani.in/library/astrophysics-for-people-in-a-hurry/
Everyone's talking about the new rocks! You know, the new *really old* rocks.
The hellishly hot span of time called the Hadean Eon began with the Earth's formation about 4.6 billion years ago, and ended shortly after the invention of rocks. 🔥 Then came the Late Heavy Bombardment, when a lot of meteors and asteroids hit the inner planets like Earth. ☄️ Then came the Archean Eon, when the Earth was almost completely covered with deep oceans. 🌊
The Nuvvuagittuq Greenstone Belt in Canada seems to be the only bit of the Earth's crust dating back to the Hadean. The picture shows what part of this belt.
A new study of isotopes of samarium and neodymium in some rocks from here claims they're about 4.16 billion years old! Here's a pretty good explanation:
https://www.sciencenews.org/article/earths-oldest-rocks-4-16-billion-years
The Nuvvuagittuq Greenstone Belt is on the eastern shore of Hudson Bay. The closest town is Inukjuak, 40 kilometers away, not accessible from the rest of the world by road. This is much cooler than if the only known fragments of Hadean crust were in Trenton, New Jersey.
My recent book, “Einstein’s Tutor”, tells the story of Emmy Noether, who laid the foundation for the Standard Model of particle physics while working without pay, because she was a woman.
Yesterday’s NYT carries the obituary of the recently departed Mary K Gaillard, who wielded the Standard Model to make many essential predictions about new particles. She did much of this while working without pay, because she was a woman.
Einstein's Tutor: The Story of Emmy Noether and the Invention of Modern Physics [Phillips, Lee] on Amazon.com. *FREE* shipping on qualifying offers. Einstein's Tutor: The Story of Emmy Noether and the Invention of Modern Physics
It's 5pm, you know what that means... weekend time!
It's busier than ever here at the Newsmast Foundation with multiple projects in the works and a lot of exciting partnerships.
But, for now, it's time to stick our feet up.
See you Monday at 9am BST!
This is a major loss.
https://www.nytimes.com/2025/07/31/science/mary-k-gaillard-dead.html
Fermilab's Youtube channel is running an experiment testing the YouTube algorithm.
They would like their latest video to get at least 60K likes. They have been tracking combinations of views, likes and comments in order to see how the posts are promoted by the algorithm.
Stop by and give it a like!. Stay and watch if you want to learn a little about the multiverse.
Study physics like an Operator - organized, encrypted, elegant. #OrgMode #LaTeX #Physics #GhostTools
http://tomsitcafe.com/2025/08/01/org-mode-latex-study-physics-like-a-ghost-operator/
30 July issue of ‘Science’ has a bunch about making ‘quantum’ computers with ‘single atoms’.
This is one of the most insane, stupid things imaginable. I know WITH CERTAINTY BEYOND ANY SCIENTIFICALLY REASONABLE DOUBT that there is no such thing as a ‘quantum’ computer, except in the imaginations of physicists and electrical engineers (besides me and some others). This is because there is no such thing as ‘entanglement’. The 2022 Nobel Prize was awarded for incorrect papers.