[time-nuts] Most accurate clock on your wrist
Neon John
jgd at johngsbbq.com
Thu Apr 19 18:18:17 UTC 2007
On Thu, 19 Apr 2007 10:58:06 -0700, David Forbes
<dforbes at dakotacom.net> wrote:
>The Casio watch is rechargeable, since the GPS function drains the
>battery in two hours. Amusingly, it takes three hours to charge it, so
>the GPS drain current is higher than the charger's output!
>
>Recharging a wristwatch is not my idea of a good time. It needs to be
>very easy to do. A USB-powered charger may be ideal.
Mine neither. Maybe someone will use inductive charging or solar
power like my G-shock WWVB watch. That one just has solar cell around
the edges since it's opaque brown. I read somewhere of the
development of an organic solar material that is semi-transparent.
Perhaps they could coat the whole crystal with the stuff.
>
>I expect a practical GPS wrist-mounted timepiece would use the GPS only
>every couple of days to resync, giving time accurate to perhaps a few
>tenths of a second. You could always request a resync if you needed to
>know precisely what time it was.
Yep, much more reasonable.
John
---
John De Armond
See my website for my current email address
http://www.neon-john.com
Cleveland, Occupied TN
All great things are simple and many can be expressed in single words:
Freedom, Justice, Honor, Duty, Mercy, Hope. -Churchill
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