Somehow I had never heard of Georges Lemaître, Jesuit priest:
[Lemaître] proposed the theory of the expansion of the universe, widely misattributed to Edwin Hubble. He was the first to derive what is now known as Hubble’s law and made the first estimation of what is now called the Hubble constant, which he published in 1927, two years before Hubble’s article. Lemaître also proposed what became known as the Big Bang theory of the origin of the universe, which he called his “hypothesis of the primeval atom” or the “Cosmic Egg”.
(H/t Sean Carroll.)
Pangolins are weird.
(H/t Will Riedel.)
- An interview about the Merriam-Webster twitter account.
- Jon Baez’s excellent coverage of Jarzynksi.
- The presidential scandal out of South Korea is more bizarre than previously reported. (H/t Will Eden.)
An anonymous Physics.SE user, on the meaning of Haag’s theorem and attempts to make quantum field theory mathematically rigorous:
This is a little bit like the development of calculus, which underlies Newtonian mechanics. It took a long time, and was clearly a very valuable exercise for both mathematics and physics. But, long before the subject was rigorously defined it was clear that Newtonian mechanics was correct, but the correct language for it does not exist yet. So, I think Haag’s theorem demonstrates that we are at the same stage of development of QFT.
- Stimulating the vestibular system (inner ear balance) leads to neat fat-loss effects.
- Steve Hsu links to and discusses the work of Ted Chiang (1, 2, 3), whose short work “Story of your life” has recently been made into the movie “Arrival”. (The PDF can be found with some light Googling.)
- “Inside the world of Australian opal miners who live underground“.
LaTeX in commentsInclude [latexpage] to render LaTeX in comments. (More.)
- How to think about Quantum Mechanics—Part 1: Measurements are about bases (11)
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- Ninnat Dangniam [latexpage] Mahmoud, one has to be careful how to define “quantumness” based on the negavitity... – Dec 28, 1:54 AM
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