[time-nuts] gravimeters

Mark Sims holrum at hotmail.com
Sat Dec 13 01:52:51 UTC 2008


There is just something nice about a 60 year old piece of technology (that is still being made and used daily) that can be schlepped by a trained ape (aka graduate student) to the remote corners of the earth and back and measure something as piddly as gravity to parts per billion resolution... and it is totally mechanical (except for perhaps a light bulb).

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> Spring based (relative) gravimeters are NOT yet dead...
>
>    http://large.stanford.edu/courses/ph210/lee1/
>

See, there *is* a need for garage Liquid Helium plants...


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