InterestingUsername@lemmy.ml to Ask Lemmy@lemmy.world · 3 days agoWhat is the most useless fact you know?message-squaremessage-square110fedilinkarrow-up175arrow-down14
arrow-up171arrow-down1message-squareWhat is the most useless fact you know?InterestingUsername@lemmy.ml to Ask Lemmy@lemmy.world · 3 days agomessage-square110fedilink
minus-squareVonReposti@feddit.dklinkfedilinkarrow-up9·2 days agoThe definition of a second is the time it takes for a caesium-133 atom to fluctuate between its two hyperfine ground state 9,192,631,770 times (I did not look the number up).
minus-square7uWqKj@lemmy.worldlinkfedilinkarrow-up3·2 days agoCongrats 😃👍 btw in that time light in vacuum will travel 299,792,458 metres (didn’t look that up either)
The definition of a second is the time it takes for a caesium-133 atom to fluctuate between its two hyperfine ground state 9,192,631,770 times (I did not look the number up).
Congrats 😃👍 btw in that time light in vacuum will travel 299,792,458 metres (didn’t look that up either)