Ekobots - Magdeburg Hemisphers

This is an illustration model of Magdeburg Hemispheres.
"The Magdeburg hemispheres are a pair of large copper hemispheres, with mating rims. They were used to demonstrate the power of atmospheric pressure by Otto von Guericke, in 1656."
This is a model of the original perserved in the Deutsches Museum in Munich.

Caution this model is very dangerous for children under 8 years, see intructions

this text above are a extract of the Wikipedia:
[wiki article: Magdeburg hemispheres](http:/