US$ 185.00
each bulb filled through a top funnel for direct comparison
sized for two-cell battery-pack circuits and the standard ray-box and panel-lamp apparatus
sized to detect bidirectional currents stronger than the milliampere-class meters can read
Five-pulley set of tandem low-friction plastic pulleys at 25
Rheoscopic Fluid Concentrate Plastic Labware_Plastic Wash Bottles each bulb filled through aConcentrated rheoscopic fluid for mixing into pearlescent water suspensions that reveal currents, turbulence, and convection cells, supporting weather pattern and ocean circulation demos.
US$ 185.00
US$ 51.40
US$ 10.00