KidWind Wind Turbine Hub, ten-pack of 12-hole crimping hubs, made from recycled plastic, allows you to turn any DC generator into a wind turbine, Diameter: 2.25 in, Maximum number of dowels: 12, Size of shaft hub press fits onto: 2 mm
Sail Car Activity, Design and engineer a vehicle that is propelled by the wind. This activity is perfect for early elementary. The Sail Car design allows students to quickly and easily experiment with sail shape, angle, and placement, furthest distance, travel the fastest
Brain reward refills, kit contain: Quick Guide for refilling kit, 4 graduated transfer pipets, 10 ml of Dopamine Indicator, 10 ml of 0 min. - Floratryp, 10 ml of 30 min. - Floratryp, 10 ml of 60 min. - Floratryp
Spectrum Discharge Tube, Mercury Gas to show spectral lines of pure substances. Tubes approximately 260mm long, central capillary portion approximately 3-1/2 to 4 (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps