atomic clock / radio-receiver chip

[Ilja O.]

On Sun, Jun 1, 2008 at 9:26 PM, cdr <_ at whats-your.name> wrote:
>> And portable thermonuclear bomb. Just in case. (Well, phone is already
>> hand interface to several orbital atomic clocks, isn't it?)
>
> the atomic clock(s) arent orbiting the earth,
>


But why there are no clocks at the orbit? They could be useful enough.
E.g. if there are several of them each on predefined geostationary
orbit we could do lots of useful things with them! For example, we
could prove that general relativity indeed exists (although ionosphere
would likely to spoil party at some degree).