Pay in 4 interest-free payments of $10.99 Learn more
Ships within 48 hours · Estimated delivery Oct 1 - Oct 6
Assembled size: 19
each representing a number between 6 and 11
the Ugears Carousel is based on the same principle as most Ugears self-propelled models: all parts of the puzzle are joined without glue or additional tools and the motion energy is provided by a rubber band motor
Assist students to readily and confidently learn about the solar system and the planets
It was launched on its maiden voyage October 3rd 1985 and landed for the last time on July 12th 2011 at Cape Kennedy
Crookes Radiometer 22cm atar Assembled size: 19Learn all about thermodynamics with the Crookes Radiometer. When exposed to light or heat, the vanes will spin! In 1873, chemist Sir William Crookes noticed that sunlight shining on his balance scale disturbed the chemical samples he was weighing. Investigation led to the invention of the Radiometer, an easy to use example of a heat engine!
US$ 4049.50
US$ 2249.50