Clinostat
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A clinostat is a device which uses rotation to negate the effects of gravitational pull on plant growth and development. It has also been used to study the effects of microgravity on cell cultures, mi
Pfeffer's clinostat, "Plant physiology"
Free fall
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In classical mechanics, free fall is any motion of a body where gravity is the only force acting upon it. A freely falling object may not necessarily be falling down in the vertical direction. If the
Clinostat
…An alternative to the clinostat for simulating microgravity is the free fall machine (FFM). Small samples (such as cell suspensions) are allowed to free fall under gravity for about a metre, with the period of free fall lasting just under a second. They are then pushed back to the top of the apparatus by a…
Acceleration of a small meteoroid when entering the Earth's atmosphere 80 km high (above which the Kennelly–Heaviside layer) at different initial velocities of 35, 25 and 15 km/s. Air pressure and air density are height-dependent.
Drop time