<
https://theconversation.com/for-100-years-we-have-marvelled-at-planetariums-heres-a-brief-history-of-how-humans-brought-the-stars-indoors-255228>
"Picture this: a small audience is quietly ushered into a darkened room. They
gasp in awe, as a brilliant night sky shines above. They wonder – as many after
them will do – what trickery has made the roof above their heads disappear?
But this is a performance; the stars above an ingenious projection. For the
first time a public audience has experienced the spectacle of the
opto-mechanical planetarium. The location is the newly opened Deutsches Museum
in Munich, built to celebrate science and technology. The date is May 7 1925."
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
