Homemade Erecting Prism Diagonal for DIY Refractor Telescope Erecting Prism Diagonal a great accessory for daytime terrestrial viewing with your telescope.Did you know that most telescopes work well for daytime viewing as well as for astronomy? If you have a refractor or a catadioptric telescope, a...
By: trukmeeilee
Continue Reading »
from Instructables: exploring - technology - robots http://ift.tt/1NTsm9S
0 comments:
Post a Comment