Subject:
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Eclipse ideas
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 11 Aug 1999 10:37:09 GMT
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Original-From:
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Laurentino Martins <LMARTINS@MARKTESTnomorespam.PT>
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Viewed:
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605 times
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Any ideas how to track the sun trajectory using some gears and one RCX?
Watching the eclipse I had this wild idea of creating a permanent projection of the sun in a wall in my room. B-)
Using some gears, a lens or binoculars, a sun filter and a mirror this might be possible.
Laurentino Martins
[ mailto:lau@mail.telepac.pt ]
[ http://www.terravista.pt/Enseada/2808/ ]
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 3 Replies:
 | | Re: Eclipse ideas
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| (...) I guess you could use a light sensor, and then turn the sensor slightly left and right, to determine where the light is sharpest. When its dark you should turn the sensor to the east and wait for the sun to raise. This might work when the sun (...) (25 years ago, 12-Aug-99, to lugnet.robotics)
| | | Re: Eclipse ideas
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| (...) The trick would be getting the gear ratio and timing right. You need to step the rotation speed down to 1 rotation every 24 hours, to equate to the sidereal motion. If you've seen an equatorial mount for a telescope, that's what you're looking (...) (25 years ago, 12-Aug-99, to lugnet.robotics)
| | | Re: Eclipse ideas
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| (...) Yes it might! Great idea. Thanks! :-) (...) <snip> Yeah, in 2327 I'll be here to see the next total Eclipse in Portugal! :-) Laurentino Martins [ mailto:lau@mail.telepac.pt ] [ (URL) ] -- Did you check the web site first?: (URL) (25 years ago, 13-Aug-99, to lugnet.robotics)
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