Mike Witherden email (remove spam text)
Well : weight = mass * acceleration so you are measuring a change in weight as your (constant ) mass is oscillating thus acceleration is varying.
>>> FOXINTERNET.NET 05/15/00 07:33AM >>> mwillis
To be picky a little here - I'd think your weight doesn't change there.
Your body probably moves a little though, in response to the pressure
change when your heart beats - and that's what they measure; your
inertia's effected by the pulse, and oscillates <G> Interesting info!
Same effect as if you drop a hammer in an airplane - You can NOT use the
oscillation of measured weight as an antigravity drive AFAIK, you CAN
measure the change to tell that the hammer's been dropped, though...
See also: www.piclist.com/techref/index.htm?key=heart+pulse
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