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| For demonstration of geotropism and phototropism. This comprises a cork disc 100mm diameter with fitting to accommodate 19mm specimen tube to which germinating seedlings are pinned. Driven by a motor of 3 Watts consumption and 4 revolutions per hour clockwise rotation. The motor is spindle mounted and can be clamped by a thumb screw so that the plane of the table can be set at any angle between horizontal and vertical. Fitted on painted heavy base. A plastic cover is provided for the cork table to shield the seedlings. Overall height 300 mm. Supplied with 1.5 m three core cable to use on 220 V 50 Hz AC. |
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