[time-nuts] Japan Quake May Have Shortened Earth Days, Moved Axis

[Rob Kimberley]

However, atomic time and "earth time" effectively drift apart, and that is
why periodically we have leap seconds to bring the two closer together
again. So we still need the astronomical measurements.

Think of it as atomic time being the "linear" reference, and earth time a
course saw tooth, which periodically comes into sync with the addition (or
subtraction) of leap seconds.

Rob K

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of J. Forster
Sent: 14 July 2011 2:41 PM
To: xformer at citynet.net; Discussion of precise time and frequency
measurement
Subject: Re: [time-nuts] Japan Quake May Have Shortened Earth Days, Moved
Axis

So?

That statement clearly imlies the Earth's period was shortened aganst some
standard.

If the Earth was the standard, how could it be shortened with respect to
itself?

It can't be. Time standards are atomic now.

-John

===================


> "Calculations indicate that by changing the distribution of Earth's 
> mass, the Japanese earthquake should have caused Earth to rotate a bit 
> faster, shortening the length of the day by about 1.8 microseconds".
>
> http://www.nasa.gov/topics/earth/features/japanquake/earth20110314.htm
> l
>
> Will
>
>
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