289
submitted 1 week ago by [email protected] to c/[email protected]
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[-] [email protected] 125 points 1 week ago

Yeah, but in 1.8 trillion years, you're going to be a minute late for everything.

[-] [email protected] 46 points 1 week ago

Imagine being 15 minutes late to the heat death of the universe. Unacceptable.

[-] [email protected] 17 points 1 week ago

Damn right, you'd miss the Pan Galactic Gargle Blaster drink before the dinner. Not ok.

[-] [email protected] 33 points 1 week ago

I mean but this should save me some hassle from my current clock that I need to adjust every 10 billion years.

[-] [email protected] 13 points 1 week ago

The Germans will be furious

[-] kambusha 9 points 1 week ago
[-] [email protected] 7 points 1 week ago

Oh shit I missed the sun explosion!

[-] [email protected] 48 points 1 week ago

Just stick a post-it with: "TODO 01/01/30000002024: set one second forward"

[-] [email protected] 29 points 1 week ago

... or one second back, that's the problem.

[-] [email protected] 20 points 1 week ago
[-] [email protected] 42 points 1 week ago* (last edited 1 week ago)

Remindme! 30 billion years

Just give me a little bit of time, I got this. You’re gonna see!

[-] [email protected] 16 points 1 week ago

Surely in 30 billion years nothing could possibly happen to the supercooled strontium to throw that off, right?

[-] [email protected] 12 points 1 week ago

Does it still need a groundhog to tell it when spring is?

[-] [email protected] 6 points 1 week ago
[-] [email protected] 5 points 1 week ago

But the groundhog will be made out of gallium arsenide.

[-] [email protected] 5 points 1 week ago

Hopefully they will improve with the next model.

[-] Mouselemming 1 points 1 week ago

Just checking... Was anyone on the team named Igor?

[-] [email protected] 0 points 1 week ago
[-] [email protected] 19 points 1 week ago

In clocks like this, the "set time" is often irrelevant. It's more important to know exactly how much time has passed since the last time the clock was "checked." If you're running a radio transmitter at 6ghz, that's 6 billion cycles per second. If you synch your transmitter to your clock once per second, it had better be accurate to the billionth of a second.

[-] [email protected] 10 points 1 week ago

This. Clocks like this are for measuring duration in a scientific context.

[-] [email protected] 2 points 1 week ago* (last edited 1 week ago)
[-] [email protected] 1 points 1 week ago

Oh duh, yeah. The most obvious example.

[-] [email protected] 1 points 1 week ago

The other atomic clocks that are averaged to give us our ground truth for time.

[-] Sparkega -2 points 1 week ago* (last edited 1 week ago)
[-] [email protected] 3 points 1 week ago* (last edited 1 week ago)

Standard seconds are defined based on measurable properties of a cesium atom. The historical definition of 1/86400th of a day doesn't work for science if the duration is inconsistent.

For example the statement:

Earth's Days Are Getting 2 seconds Longer Every 100,000 Years

becomes self-referencing and loses all meaning without some other reference point.

[-] [email protected] 1 points 1 week ago

"I suppose".

Boom, now it's a scientific unit.

[-] [email protected] 2 points 1 week ago

This is time relative to earth, and the actual passage of time in the universe that we aim to measure doesn't care about the Earth's rotation.

this post was submitted on 05 Jul 2024
289 points (97.7% liked)

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