This is a pre-assembled DC Motor designed for students to learn about electromagnetic forces. The open structure resembles the diagram found in many textbooks. The polarity of the magnets can be reversed to change the direction of the rotation. The motor can also be used with a rheostat to observe the change of speed with the change of current.
This Floating Magnet Set contains 6 brightly colored magnetic rings, and the plastic stand, in a cardboard storage box. We have designed a special stand to replace the pencil, for hands-free demonstration. Magnets are in plastic cases, to reduce breakage.
These Alnico U Shaped Magnets are painted red and supplied with a keeper.
These Hydrometers are used for determining the specific gravity of liquids.
Lenses are made from clear acrylic with one frosted plane surface.
These polypropylene Centrifuge Tubes feature a screw top with easy to read black graduations. These centrifuge tube are sterile. Centrifuge tube come with conical tip bottom or self standing type. All centrifuge tubes have black graduation markings and blue screw down cap.
