Equipment History Theory

We obtained the clinostats shown on the previous page from Dr. Jane Shen-Miller (UCLA), who has been involved in gravitational biology throughout her carreer.

Dr. Shen-Miller with 2-D clinostat

The machines were built based on planes from Solon Gordon, Jane Shen-Miller, Richard R. Dendolph, William Eisler and others.

The 2-D clinostat was first described in a 1964 Annual Report from Argonne National Laboratory. The device was used to establish the threshold gravitropic sensitivity of Avena seedlings. Gravity-perception for shoots (coleoptiles) was measured to be between 10-3 and 10-2 g; roots are more sensitive and curve at 10-4 and 10-3 g.

(Shen-Miller J, Hinchman R, Gordon SA (1968) Thresholds for Georesponse to acceleration in gravity-compensated avena seedlings. Plant Physiology 43: 338-344)

After a long time in storage the machines needed a thorough cleaning:

H. Luo working on the 2-D clinostat
H. Luo and Y. Zhao after restoration of the 3-D clinostat.