About this item -

A  is a device which is used to negate the effects of gravitational pull on plant growth.

A single axis clinostat consists of a disc attached to a motor, originally clockwork but usually electric nowadays.

The disc is held vertically and the motor rotates it slowly at rates in the order of one revolution per minute.

A plant is attached to the disc so that it is held horizontally.

The slow rotation means that the plant experiences a gravitational pull that is averaged over 360 degrees, thus approximating a weightless environment.

Clinostats have also been used to cancel out effects of sunlight and other stimuli besides gravity.

A single axis clinostat only produces the weighlessness effect along its axis of rotation.

A 3D or two axis clinostat, can average gravitational pull over all directions.