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Shaking in
space?
Plate compactors are even used for physical
training by astronauts in space! This kind of
training will become even more important in
the future, as
astronauts
take longer and
longer trips into space. A trip to Mars and
back can last more than 2 years. During that
time, the astronauts will be subjected to zero
gravity and their muscles won't be bearing
any weight. That means that their muscles
will atrophy, or break down, without
training.
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