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Moonstick Co. - manual visual calculators for astronomy, timekeeping, and computation edit / delete
Makers of a range of slide rules and related devices, with copious explanation. Neat!
to astronomy maths mechanica slide-rule ... on 29 June 2015
Tony Freeth and Alexander Jones. "The Cosmos in the Antikythera Mechanism." ISAW Papers 4 (February, 2012) edit / delete
Reverse-engineering the planet display in the Antikythera mechanism.
to antikythera astronomy history mechanica retrotech reverse-engineering ... on 22 June 2014
Free software that identifies the location of arbitrary photographs of starfields. They're running it automatically against Flickr photos now. This is really very neat -- and there's some Real CS underneath it too.
The Astronomy Corner: Astronomical Games edit / delete
Accessible short articles on astronomical subjects. I particularly like the one on finding your way home from the centre of the galaxy.
to amusements astronomy ... on 03 January 2007
The C.L.I.V.E. Project edit / delete
Point a laser at Iridium flashes automatically.
to astronomy electronics embedded satellite ... on 14 May 2006
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tasty by Adam Sampson.