🔬 Science 2d ago · Ethan Siegel

This physics trick allows you to beat the speed of light

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This physics trick allows you to beat the speed of light
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In our Universe, there are a few rules that everything must obey.

Energy, momentum, and angular momentum are always conserved whenever any two quanta interact.
The physics of any system of particles moving forward in time is identical to the physics of that same system reflected in a mirror, with particles exchanged for antiparticles, where the direction of time is reversed.
And there’s an ultimate cosmic speed limit that applies to every object: nothing can ever exceed the speed of light in a

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