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To invent, you need a good imagination and a pile of junk. -- Thomas Edison
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Science Supplies from Edmund Scientifics
More Components
Low Friction Pulley Low Friction Pulley
$22.95

The low-friction, shielded bearing and low moment of inertia let this lightweight pulley spin with ease. In addition, the stainless steel support bracket lets you hang a mass over the edge of a table.

Click Here for more information or to order Low Friction Pulley from Edmund Scientific's

One Farad Capacitor One Farad Capacitor
$39.95

Alternative power source -- This 45mm-diameter capacitor has a great charge capacity at a low cost and can accommodate a potential difference of up to 5 volts. -- Bipolar binding posts make it easy to hook up this Farad capacitor to power sources such as batteries and generators for charging, as well as to light bulbs, small motors and other objects that require a low-voltage power source for operation.

Click Here for more information or to order One Farad Capacitor from Edmund Scientific's

Pulley & Rod Ball Bearing Type Pulley & Rod Ball Bearing Type
$17.95

This pulley is great for use with any inclined plane that accepts shaft diameters up to 5 mm thick and rod lengths of 10 cm (4GÇ¥). -- It features a very low Coefficient of Friction of 0.04. We use an all-aluminum rod, ABS plastic mount and blue plastic sheave 50 mm (2GÇ¥) in diameter.

Click Here for more information or to order Pulley & Rod Ball Bearing Type from Edmund Scientific's

Pulley Clamp Pulley Clamp
$7.95

You can clamp our versatile, free-running pulley to surfaces up to 2GÇ¥ (19 mm) thick and adjust it easily with the attached thumbscrew. It features a low 0.04 Coefficient of Friction. The pulley has a molded ABS plastic body and rugged, large-scale (50 mm; 2GÇ¥) plastic sheave with deep V grooves.

Click Here for more information or to order Pulley Clamp from Edmund Scientific's