The Fastest Clock in the World

[atyxyt]

so long

[DerPaddle]

That isn't a fast clock, if I wander around with my Casio, its faster than this just standing around...

[dieselscience]

World's fastest typing in the world, right here - see that? I just posted and erased it so fast you could not see it - and then I typed this (except for the part I erased.)

[yesilovetheinternet]

Even so you're uC may be fast enough to calculate the accurate time, how do you manage to actually GET the exact time?

What I mean: Unless you don't happen to sit in an atomic clock, there's basically no way to you can to get the _exact_ time after there's always some kind of technical delay time. And even those ain't exact.

Anyway, ever thought about the fact that time is not real, it's just something mankind made up to measure the value of actions?

Weeeelllll.... I like displays, nice work!

[fronkenpoop]

Nope.

[fronkenpoop]

Nope.

[lea9104]

are you substracting the cicles that it needs to enter to the stop's interruption?

however you are amazing!

i woud like to do something like that but a bit smal hahaha

[Insolent85]

I bet they're just cheating, they just show 8 on the last four digits while it's running, and when they stop it it just asserts random numbers to them. /joke

[bestdudeever765]

looking like 8888888 at end o.O

[jishan22]

This is only accurate to 10,000 Hz because everytime you stop it, the last digits were 9 and 9

[TakeOverYouTvbe]

@jishan22 or maybe luck

[jishan22]

i have a stopwatch that has a frequency of 14,318,180 Hz!

[Micali711]

is that atomic?

[roflex2]

@Micali711 how the fuck would it be atomic lol? it runs off a crystal oscillator like 99% of other clocks out there.

[petermines]

I assume you mean does it have a 60 khz groundwave MSF receiver driving a decoder.

[CDMCSD2]

Assuming the crystal runs at 1.000MHz with 60ppm maximum tolerance (temperature, aging...) the accuracy would be 6/100000 seconds. you could use Epson atomic clock, runs at 10^-9 (cesium atom).

[IMakeOrWatchVideos]

that clock goes to .000001 of a sec. my pc runs at 1.6 ghz (Intel atom cpu). and 1 ghz is .0000000001 of a sec. i don't thinks that's the fasts clock.

[zestCC]

THE MOST ACCURATE not the fastest!

[twilight1138]

No. Resolution != Accuracy.

[tonychiu24362685]

well...i have seen a lot of clocks more precise than this one like NIST-F1.

[Xerfil]

why the hell i want to see last numbers?

They are moving and i cant see them.

and if u press stop again its not correct because they are always moving

[mrmts]

This is possible.. although not accurate.

A crystal is most likely used in this circuit, and temperature will affect how precise the clock pulse from the crystal is. Propagation delay from how the circuit is designed will also cause the clock to 'lose' time.

This clock is relatively simple to make using digital logic lpm counters. So there is nothing 'fishy' going on in the video.

The clock would work great for beside the bed or timing a race, but it should be used for anything accurate.

[CarcassBroomstick12]

every single working clock in the world tells time like this, the only thing different is that we can see it on this one

[jforb427]

Not really, many clocks use a 32,768 Hz oscillator. Much slower than this. And many more just count the 60 (or 50 in other countries) Hz line frequency.

[DimethylSulphoxide]

talk about redundant

[flyingcircusomgz]

#1: A clock that precise would be *nearly* impossible and #2: The chance that you'd get it at 99 microseconds for BOTH of those tries is incredibly slim.

[soasta]

It's not "incredibly slim". The chance is 1/100.

[twloaf]

The chance of having the final two digits be the same in two consecutive pauses is 1/100.

The chance of having the final two digits be 99 in two consecutive pauses is 1/10,000 (1/100^2).

[Tr33fiddy]

lol. six comments and 4 are about the first thing I thought of :)

Of course the probability of any two specific pairs of digits appearing twice are 1/10,000 however the probability that in two stops, the last two digits are the same each time is 1/10,000 * 100 which is 1/1,000. More importantly, the chances that in two stops that the last two digits are different, is 999/1,000 suggesting that indeed, something is a little fishy...

[soasta]

Yes, but why would it really be strange that it stopped at 99? If it's fake, then why would they choose 99 for both of the pauses?

[superafterburner]

But if they were 98 or 97 you would make the same comment. If you add up the chance of getting any pair of last digits twice in a row, it will be 1/100.

[InfiniteSword]

I doubt that is even possible to achieve it a clock like that so faaake, and anyways how would you sync the time

[justmesqui]

What brand is it? where can i buy it ?