Artificial simulation of weight

To keep track of astronaughts' weight, in weightless orbital
environments; there are special seats, or chairs that shake, and create
artificial weight; so that the ground crew can determine if the
astronaughts are gaining or loosing weight, and adjust their diets
accordingly.

This may explain to some of you that weight does _not_ vanish during
free fall and orbiting, it's just not so easy to measure it.

Don

Don1 wrote:
create

These seats create a "simple harmonic motion" that can be analyzed
similar to w/g, and/or f/a.

Don1 wrote:
create

Note that these measurements measure not the astronaut's weight (which
is slightly less in orbit, about 10%, than on the Earth's surface), but
the astronaut's mass.

Specifically, the frequency of oscillation is the square root of the
ratio of the spring constant of the shaker to the combined mass of the
astronaut and the chair.

PD