Kit Solar Airship

A physical experiment with solar energy. One of our most impressive item: Fascinating by its size of 3 x 1 m shows the Solar Airship very clear what effect the sun's heat. Shortly after the completion begins the "monster" to rise, because the sun's rays heat the air in the black sleeve, dark bodies as a large part of the incident radiation absorbing ("swallow"). By heating the air in the Zeppelin will be easier (gets a lower density). The heated air (lighter than the surrounding air) increases along with the very light cover into the air. Black film tube 3 x 1 m, 50 m nylon thread, instructions. 15 x 10.5 x 3 cm from 6 years