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!
This magic bird defies gravity before your very eyes!
A massive mounted set of 100 rocks and minerals found in the US,
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This is a classic demonstration toy of the powers of magnetic fields!
This ultimate chemistry set features 250 mind-boggling experiments!
Build a magnetic levitating train with this science fair project kit!
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