This apparatus is designed to demonstrate the principle of inertia. Simply release the plastic ball on top of the Plexiglass square which is set on the vertical post. Release the spring and the square shoots out. The ball falls into the concave recession in the post, remaining at rest on top of the post as if nothing happened. Excellent for use in physics demonstrations!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Build your very own smart robot!
This superb chemistry set features 350 mind-boggling experiments!
Build your own windmill generator kit by recycling a plastic bottle!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.