4 ms·
https://en.wikipedia.org/wiki/Dobsonian_telescope https://en.wikipedia.org/wiki/Dobsonian_telescope I once worked with a woman who learned from John Dobson abo
by jackfoxy 6y ago
https://en.wikipedia.org/wiki/Dobsonian_telescope https://en.wikipedia.org/wiki/Dobsonian_telescope
I once worked with a woman who learned from John Dobson about lens grinding and telescope construction. Watched a Youtube video of John recently. This is too labor intensive for me, but happy others enjoy it.
- emilga 6y agoThis 90min video by the Dobson himself is a great explanation of how to build one: https://www.youtube.com/watch?v=snz7JJlSZvw https://www.youtube.com/watch?v=snz7JJlSZvw
- DrScump 6y agoDobson founded the San Francisco Sidewalk Astronomers public outreach group: http://sfsidewalkastronomers.org http://sfsidewalkastronomers.org I used to use a favorite quote of his in my Usenet .signature file: "What's the use of somebody who doesn't wonder?"