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5:47

Who decides how long a second is? - John Kitching

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11:22

Seconds, Minutes and Hours for Kids | Lesson Video

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4:14

1秒って実際どれくらい長いのでしょうか?

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2:16

Who Decided How Long a Second Would Be

Mr Cognito
5,568 回視聴 - 7 年前

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1:01

How long is one second?

Facts5Minutes
57 回視聴 - 1 年前
9:40

Who Came Up With Days, Hours, Minutes and Seconds?

Trace Elements
365,317 回視聴 - 9 年前
0:56

Challenge: Make your bed in 60 seconds or less! #makeyourbed #60seconds #challengeaccepted

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1秒はどれくらい長い？パート1

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A Brief History Of (Keeping) Time

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How Long Is A Day On The Sun?

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1,897,540 回視聴 - 9 年前
0:06

This Video Is 1 Second Long ⏲️

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6:18

How Long is Forever? - One Second a Day

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319 回視聴 - 7 年前
0:22

This Video is 0 Seconds Long

Jack Gordon
16,869,092 回視聴 - 3 年前
1:30

How far is a second?

minutephysics
2,973,163 回視聴 - 13 年前
1:43

What If a Day Was Only 1 Second Long?

The End of Curiosity
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0:16

When a goalkeeper SCORES after 13 seconds #shorts

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0:25

DAY TWENTY-SEVEN of Making 1 SECOND of My 100 Second Long Level!

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20,462 回視聴 - 7 か月前
0:23

The CORRECT Way to Break a Fast (in 25 seconds) #shorts

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317,322 回視聴 - 3 年前
0:24

Reboot Your Brain in 30 Seconds

Sean Andrew
2,484,612 回視聴 - 3 年前
0:05

This Video Is Two Seconds Long 0:08 ⏲️

Maxwell Gamer
10,271,421 回視聴 - 6 か月前