Added: 1 year ago
From: NASAeClips
Views: 12,565
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  • Its interesting how math and science connect!

  • He didn't said why one second is one second long...

  • The editing in this video made this so much entertaining and informative haha

  • Joey Tribbiani :D

  • wrong about mercury. A day is 59 days

  • spaghetti without a plate... makes more sense to me.

  • a year in mercury is 88 days and a day is 58 days...nasa clip is wrong :-)

  • Yea, how was it decided how long it takes for a sec ??

  • Who developed units of time? How did they decide how long a second should be? Or a minute, or an hour, or even a day? You haven't answered to these questions.

  • common knowledge 

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