5 Facts About Gravity

追加: 2026-04-29

[00:00:00]Five facts about gravity. None of them are uplifting.

[00:00:05]Number one, without gravity, your blood would pull in your head. Astronauts returning from the ISS come back with puffy faces and degraded eyesight.

[00:00:16]Gravity is what keeps your face where it belongs.

[00:00:20]Number two, a black hole's gravity stopped light. Light travels at 300,000 km/s.

[00:00:29]Patience beats speed every time.

[00:00:33]Number three, you are slightly lighter at the equator than at the poles. The Earth bulges outward there due to its rotation, putting you fractionally further from the center. Gravity is not giving everyone the same deal.

[00:00:48]Number four, gravity pulls everything toward the center of the Earth. The center is 6,000° of molten iron.

[00:00:57]Gravity has been trying to send you somewhere terrible your entire life.

[00:01:02]One more. This is the gravity fact that changes it.

[00:01:07]Number five, heavier objects do not fall faster. Galileo proved this in 1589.

[00:01:16]People still drop two things from a height to check.