Brightly colored single and double tandem pulleys will add fun to your experiments. Made of durable lightweight plastic these 50mm diameter pulley blocks are held in a chrome plated metal frame. Illustrated activity guide included. Ages 7+.
Sturdy nylon constructed clamp pulley. The ball bearing sheave is 4.5 cm in diameter and can be adjusted from flush with the tabletop to 13 cm above it. In addition, the pulley can be rotated 360° to suit any experimental setup. Attached to tables up to 4.5 cm thick.
A low cost pulley for simple machines experiments, rigid plastic sheave with a deep V – groove, 50 mm in diameter. Can be attached to surfaces up to 25 mm thick.
To provide a simple means of producing single or multiple rays of light for use in elementary optics. Made of die-cast alloy, the ray box has an open front and vertical internal grooves to accommodate a slit plate and a cylindrical lens. Supplied complete with a plastic plate having single and triple slits, a 12 V 24 W SBC line…
