Alternative Energy

This attractive and economical Stirling Engine is both engaging and a great educational tool. It runs by exploiting the heat flow generated by the small temperature differences between room temperature and a container of hot water or ice.

Economical and attractive demonstration car model. Can be powered by a solar cell or a rechargeable battery (AA size, not included.

This three dimensional model allows students to study our solar system -- looking at planets' relative sizes and colors. Planets can be set by month to show their relative positions.