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Why the weak nuclear force is short range
The “range” of a force is a measure of the distance across which it can easily be effective. Some forces, including electric and magnetic forces and gravity, are long-range, able to cau…
Matt Strassler
Conversations About Science with Theoretical Physicist Matt Strassler
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Visit profmattstrassler.com → RSS feedOn Hacker News Jul 2019 – Mar 2025
2
Did the Particle Go Through the Two Slits, or Did the Wave Function?
In the quantum double-slit experiment, did the particle go through the slits or did the wave function? 1920's quantum physics has a simple answer: "NO".
3
How far could the sun possibly be?
The Greeks found the minimum possible distance to the Sun is a few million miles. Today we'll see how the speed of light can provide a maximum distance.
4
Why Is Light So Fast?
The speed of light is much faster, and the energy in ordinary objects far greater, than what daily life accustoms us to. Why? Step 1: new perspectives
5
A Ring of Controversy Around a Black Hole Photo
[Note Added: Thanks to some great comments I’ve received, I’m continuing to add clarifying remarks to this post. You’ll find them in green.] It’s been a couple of months si…