[time-nuts] nubie querie

[Bruce Griffiths]

Yes it does due to the variation of gravitational attraction between the 
object and the Earth with height above the ground.
However this classical effect is very small and probably virtually 
impossible to measure.

Bruce

Gerard PG5G wrote:
> Eh, does the weight change if the sand runs from top to bottom? Some 
> quantum mechanic effect I am missing? Or maybe a change in gravity as 
> the sand drops from high to low?
>
> phil wrote:
>>>> Even defining when the sand timer is "done" is not a real
>>>> simple thing. Waiting for that very last particle to drop may
>>>> not be the best approach.
>>>> Bob
>>
>> You could measure of the weight of the hourglass.
>> Phil
>>