When Is Now?

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概览

收录于

2026年3月17日

学科与领域

earth-environment · matter-physical-properties

年级范围

九年级(高一)–十二年级(高四)

页面类型

Video

关键词

science joe hanson it's okay to be smart when is now general relativity special relativity flash lag effect illusion now presentism eternalism albert einstein neuroscience time relativity speed of light time dilation light cone pbs its okay to be smart its ok to be smart pbs digital studios it's ok to be smart

简介

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY
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When is now? Seems like a pretty simple question… just look at your watch. But do you and I share the same “now”? Let’s journey from Einstein’s thought experiments about relativity to cutting edge neuroscience research to try and answer that question.

References: https://sites.google.com/view/when-is-now-references/home


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