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Ethan Siegel
- Popular posts
- 11
- Total points
- 1,881
- HN comments
- 887
- Rank
- #904 personal
Visit medium.com/starts-with-a-bang → On Hacker News Feb 2015 – Aug 2020
Science & Space 11Math & Algorithms 5Hardware & Electronics 1
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Could dark matter not exist?
Is it possible that our problems indicate a flaw in the theory of gravity?
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What's the third most common element?
The Universe was 99.999999% Hydrogen and Helium after the Big Bang. Billions of years later, there’s a new contender in town.
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Gravity's Oldest Puzzles
Every now and then the orbital motion of a body doesn’t match our prediction. And that might lead to interesting discoveries.
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If the universe is 13.8B years old, how can we see 46B light years away? (2018)
Distances in the expanding Universe don’t work like you’d expect. Unless, that is, you learn to think like a cosmologist.
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Three Meanings of E=mc²
It’s so much more than mass-energy equivalence; it’s the key to unlocking the quantum Universe.
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A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
One of the three basic circuit elements just got a lot smaller for the very first time, in what promises to be a trillion-dollar…
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An equation that takes Pythagoras to a new level
Unbelievably enough, it all comes back to Pythagoras.
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What happens when Betelgeuse explodes?
It’s one of the nearest red supergiants to us, and a supernova is only a matter of time. What are we in for when it happens?
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Confirmed: The Last Great Prediction Of The Big Bang
A leftover glow unlike any other — of neutrinos — has finally been seen.