A unique 3-D printed telescope named the Analog Sky Drifter may spark a revolution in amateur telescope making.
Source:
https://phys.org/news/2019-09-d-telescope-analog-sky-drifter.html
Only the Autodidact is Free
A unique 3-D printed telescope named the Analog Sky Drifter may spark a revolution in amateur telescope making.
Source:
https://phys.org/news/2019-09-d-telescope-analog-sky-drifter.html