5:47Long-form

Who decides how long a second is? - John Kitching

United StatesPublished January 19, 2021

Views 2.69M  |  Likes 76.4K  |  Comments 1.87K
Views#2,618,981Global
Views#548,941United States

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TED-EdTED-Ed
23M subs•2.39K videos•Mar 2011

Ranked #2,618,981 globally by view count, this video has accumulated 2.69M views since it was published on Jan 19, 2021.

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