What Everyone Gets Wrong About Gravity
7 人推荐 · 跨 5 个月 · 2020–2025
中文导读
Veritasium 联合物理学专家硬核科普广义相对论：引力本质上并非一种“力”，物体不过是沿着弯曲时空中的测地线做自由运动，进而揭示为什么“静止站在地面上”其实正处于持续加速状态。
为什么 HN 推它
HN 在探讨时空弯曲与自由落体时公认最直观的科普神作，彻底打破牛顿经典引力直觉的必看视频。
「他关于狭义与广义相对论的视频真的让我大开眼界。」HN 网友原话：his videos on special [1] and general relativity [2] were real eye-openers for me
英文原摘要（HackerTube / Claude 整理）
Veritasium explains, with expert input, that in general relativity gravity is not a force and objects follow straight paths through curved spacetime, including why standing on the ground means you are accelerating.
HN links it as a go-to intuitive explanation whenever gravity as spacetime curvature or free fall comes up.
HN 上的提及
I barely understand it but veritasium explains it in the newest vid
See Veritasium's video at 10m17s
This Veritasium video gives detailed “popsci” explanation
Here's [0] a bit more thorough explanation of this concept for those who are interested.