Physics Gene
I write about the real intuition behind physics concepts, explained the way a curious person actually wants to understand them. One deep-dive a week that changes how you see the universe
| Platform |  | Pricing | Freemium | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 51 | Founded | 6 months ago | Last Issue | 46 hours ago |
| Active | |||||
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physicsgene.substack.comLatest Issues
If the Universe Expands, What Is It Expanding Into?
Think about an elevator with mirrors on two facing walls.
Think about an elevator with mirrors on two facing walls. The doors close and there you are, dozens of times over, each copy a little smaller than the last, curving away into a gree...
The Hardest Problem in Physics?
When the electricity cut out in our neighborhood, which in Lebanon means often, the sky did something cities never let it do. It turned on. Real darkness, stars in layers, the Milky Way like a smudge of chalk. I was maybe seven, up on t...
Two Physicists Measured the First Atomic Bomb With Paper
One used torn scraps ten miles from the blast. One used a magazine photograph and a line of algebra. Both used the same refusal, and it’s the trick for guessing anything.
Fermi’s memo describes what he did and what he concluded, and leaves...
After a Trillion, Numbers Don’t Get Bigger, They Get Meaningless
Count out loud, one number per second, and don’t stop for anything. You reach a million in eleven and a half days. You reach a billion in thirty-two years. You reach a trillion in about thirty-two thousand years, which puts the finish line...
The Test Is 95% Accurate. The Result Is 98% Wrong.
Sixty doctors, one question about a lab test, and a 263-year-old formula that says how sure you are allowed to be.
Before anything else, the question. Answer it the way the sixty did, on the spot, no calculator, and decide on a number befo...
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Authors
The writers behind this newsletter.
Physics graduate & medical doctor in training. I write about the real intuition behind physics concepts, explained the way a curious person actually wants to understand them. One deep-dive a week that changes how you see the universe.
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