BARBARA KLEIN: The earliest planetarium that is still working today is in the Netherlands, although the device is actually an orrery. It was built by a man named Eise Eisinga starting in seventeen seventy-four. It took him seven years to build this moving device inside a room in his house. All the planets move at the same speed as the real planets in our solar system. So, it takes one year for Earth to move around the sun and about twenty-nine years for Saturn to do so. Eisinga made his device out of wood, metal nails, a clock and nine weights.
The oldest working planetarium was built by Eise Eisinga in the Dutch town of Frankston
Other versions of early planetariums were large globes. People could sit inside them. Holes were cut into the walls of these globes to represent stars.
STEVE EMBER: A group of German engineers and scientists helped develop the modern planetarium between nineteen ten and nineteen thirty. The creators of the Deutsches Museum of science and technology in Munich wanted to build a planetarium. So, they asked the Carl Zeiss company in Germany to help with this plan. This company was known for making scientific equipment such as microscopes.
It took engineers at Zeiss several years to invent a new planetarium technology. The complex mechanical device they made projected light through “star plates” of film that contained images of thousands of stars. Public viewings of the first Zeiss planetarium projector began in nineteen twenty-three.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25