So, Negative Gravity Is a Thing

The video explores the concept of negative gravity, focusing on how sound waves, or phonons, exhibit this phenomenon. Unlike other forces, gravity typically only attracts, but phonons defy this by moving upward in a gravitational field due to differences in air pressure. This effect, though small and currently undetectable, could have significant implications in dense environments like neutron stars. The video emphasizes that these ideas are rooted in classical physics, not requiring advanced theories like quantum mechanics.

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