[LEAPSECS] drift of TAI

Rob Seaman seaman at noao.edu
Mon Sep 15 12:28:43 EDT 2008


On Sep 15, 2008, at 8:06 AM, Tony Finch wrote:


> The civilized world has mostly eliminated non-uniform bases, except

> for dealing with time.


And angle. The fundamental confusion here is between TAI - purely a
decimal count from some zero epoch - and UTC, an orientation angle.
Angles are often expressed using sexagesimal notation. TAI should
never be.


> The Americans (and the British to a lesser extent) still cling to

> the handicap of non-uniform bases for other measurements. Still,

> could be worse: at least there aren't leap-ounces.


Ever tare a balance in chem lab?

Rob



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