[r9etb]

Now define a second.

Under the International System of Units, the second is currently defined as follows:

The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.

That definition, btw, is actually used in real life for any number of precise timing applications, including your ATM and cell phone transactions.

[dirtboy]

The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.

They could re-define it as how long it takes the Obama Administration to spend $9,192,631,770.

[dirtboy]

So while you are counting to 9,192,631,770 cesium hyperfines , you have to divide by 299,792,458.

So at the end of the day, a meter is how far light travels in a vacuum while a cesium 130 atom shakes its booty 30.6633189884984 times.

Sounds messy.