InterestingUsername@lemmy.ml to Ask Lemmy@lemmy.world · 5 days agoWhat is the most useless fact you know?message-squaremessage-square105linkfedilinkarrow-up174arrow-down14
arrow-up170arrow-down1message-squareWhat is the most useless fact you know?InterestingUsername@lemmy.ml to Ask Lemmy@lemmy.world · 5 days agomessage-square105linkfedilink
minus-squareVonReposti@feddit.dklinkfedilinkarrow-up9·4 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-up3·4 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)