Balanced Wind Vane Plastic Labware_Plastic Wash Bottles Thermometer-specific clamp with an integrated

Thermometer-specific clamp with an integrated boss head

Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs

and storage between uses at the laboratory bench

this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves

with banana-plug terminals for optical-bench and physics-demonstration circuit setups

Balanced Wind Vane Plastic Labware_Plastic Wash Bottles Thermometer-specific clamp with an integratedBalanced wind vane with a steel pivot bearing assembly and direction indicator mounted on a cast iron base, a sturdy meteorology tool for classroom and field weather observation.