HackerTube 中文?

What Everyone Gets Wrong About Gravity

VeritasiumYouTube ↗

Caption notes

Derek Muller uses a person in free fall and a spaceship coasting far from massive bodies to illustrate the experience of weightlessness in a local reference frame. A thought experiment with two people heading north along meridians shows how objects following geodesics can move closer together. The floor’s support provides a contrast between staying at the same coordinates and having an accelerometer read zero.

Archived captions (transcription method unspecified) ↗
Original passages · 2
These shortest paths over curved surfaces are called geodesics
What Everyone Gets Wrong About Gravity · ▶ 4:55–4:58
a deviation from a geodesic
What Everyone Gets Wrong About Gravity · ▶ 9:37–9:44

Hacker News comments

View original on HN ↗