00:00My mom said she has a clock she really likes but she seems to have forgotten it's name.
00:03How do you forget the name of a clock?
00:05Well, I'll help you figure it out.
00:07What did she say about it?
00:08She said it's so accurate it wouldn't lose a single second
00:11even if it ran from the beginning of the universe.
00:13That's an optical lattice clock!
00:15It's 100 times more accurate than a cesium atomic clock!
00:18That was easy!
00:19But my mom said when it's time, a pigeon pops out and tells you.
00:22That's a cuckoo clock.
00:24It's completely different.
00:25Pigeons don't come out of optical lattice clocks.
00:27It'd be funny if they did, though.
00:29also if you put it in the tokyo sky tree observatory it runs four nanoseconds
00:33faster a day than on the ground that is definitely an optical lattice clock it proved the theory of relativity
00:39which says gravity affects the flow of time that's so cool but my mom also said it measures time
00:44with sand that's an hourglass why did it suddenly become so analog it's the exact opposite of
00:51the latest technology and she said with that clock you can measure height in one centimeter increments that's
00:57an optical lattice clock
00:58I give up, thank you very much
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