Cylindrical pendulum bob with sliding plotter electrode for experiments to confirm Kepler's law governing areas covered by a body subject to a central force that can be demonstrated by means of powder tracing. Steel, with metal ball chain ...
更多
Connector box for use in connecting light barrier (1000563) to external digital counters. Includes plug-in power supply 12 V AC.
Input: 8-pin miniDIN socket
Output: Two 4-mm safety sockets
更多
Use these hard plastic rods to hang the paper version simply and effectively. You receive 2 plastic rods to clip onto the top and bottom of your chart purchase. The top rod has a small ring attached for hanging purposes.
更多