Education

An economical version of a classic device! It demonstrates that all objects experience the same gravitational acceleration and fall at the same speed in a vacuum, but in air the air resistance slows down some objects more than others. Features a

Fresnel Lens with vinyl sleeve is 3 3/8&quot wide x 2 1/4&quot tall.The magnifying window is 3 1/8&quot wide and 1 3/4&quot tall and has a magnification of 1.25x.

A Fresnel lens is a compact type of lens which was first used in lighthouses. The construction of these lenses allows for a large aperture and a short focal length without the mass that would normally be required.

This set includes a friction block and a friction board, both made of high quality, smoothly finished pine wood. The friction block has a hook for a spring scale and three compartments for additional weights.

This friction box is used for coefficient of friction studies when larger loads are required. The 6 x 2.5 x 4 .

This complete set includes an inclined plane with a pulley and protractor, a Hall&#39s carriage, a hanging pan to hold the desired weight, two wooden boards of different sizes, and a metal plate. The set is used to demonstrate the resolution of

6 friction pads for electrostatic experiments. Sold individually.

6 friction pads for electrostatic experiments. Sold individually.

Our ebonite friction rod can be used to experiment with and to observe friction. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

The Friction Rods are useful in a variety of electrostatic demonstrations. 603-1: Made of glass tubing and sealed on one end 603-2: Made for a solid glass rod and the edges of the glass are ground to a smooth finish 603-3: Made for a solid glass rod

The Friction Rods are useful in a variety of electrostatic demonstrations. 603-1: Made of glass tubing and sealed on one end 603-2: Made for a solid glass rod and the edges of the glass are ground to a smooth finish 603-3: Made for a solid glass rod

The Friction Rods are useful in a variety of electrostatic demonstrations. 603-1: Made of glass tubing and sealed on one end 603-2: Made for a solid glass rod and the edges of the glass are ground to a smooth finish 603-3: Made for a solid glass rod