Free fall machine

Free fall machine

Infobox Laboratory equipment
name = free fall machine


caption =
acronym =
other_names = FFM
uses = allows biological samples to develop in free fall thus mitigating the effect of gravity
inventor = D. Mesland
manufacturer =
model =
related = clinostat, random positioning machine

The free fall machine (FFM) is designed to permit the development of small biological sample such as cell cultures without the effect of gravity under free fall conditions [Schwarzenberg M, Pippia P, Meloni MA, Cossu G, Cogoli-Greuter M, Cogoli A. (1999). Signal transduction in T lymphocytes--a comparison of the data from space, the free fall machine and the random positioning machine. Adv Space Res. 24(6): 793-800] .

Description

The free fall machine (FFM) addresses some of the problems of the simple horizontal clinostat. In a typical machine samples are allowed to cycle between free fall for about a metre down a column (0 g) and a "bounce" back to the top of the column that is intended to be so fast (20 g) that it is undetected by the biological sample. The sample therefore effectively grows at 0 g.

ee also

* gravitropism
* clinostat

References

External links

* ETH Space Biology [http://www.spacebiol.ethz.ch/research/equipment/simulation/equip_2// "Free Fall Machine"]


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