2001-07-13
This is actually great news. If the means to measure times can be made 100
000 times or more more accurate, then that also improves the accuracy of the
metre. The metre is defined relative to time, because the devices used to
measure time are more accurate than other devices. The definition of the
metre will still be the time light travels in 1/299 792 458 s, but with the
means to measure the second to greater precision, means the metre will
benefit by the same means.
John
Keiner ist hoffnungsloser versklavt als derjenige, der irrt�mlich glaubt
frei zu sein.
There are none more hopelessly enslaved then those who falsely believe they
are free!
Johann Wolfgang von Goethe (1749-1832)
----- Original Message -----
From: "Jim Elwell" <[EMAIL PROTECTED]>
To: "U.S. Metric Association" <[EMAIL PROTECTED]>
Sent: Friday, 2001-07-13 10:23
Subject: [USMA:14358] More precise atomic clock
> The article below talks about a new clock being more "precise,"
> but everything in it refers to a smaller "tick" interval. What
> use is a finer tick interval if its fundamental accuracy is no
> better, or perhaps even worse?
>
> Jim
>
> http://dailynews.yahoo.com/h/nm/20010712/tc/science_clock_dc_1.html
