Grinding a mirror is a bitch and a half.
Grinding a mirror is a bitch and a half.
Archive: https://archive.today/53Sll
From the post:
>Telescopes are great tools for observing the heavens, or even surrounding landscapes if you have the right vantage point. You don’t have to be a professional to build one though; you can make all kinds of telescopes as an amateur, as this guide from the Springfield Telesfcope Makers demonstrates.
Archive: https://archive.today/53Sll
From the post:
>>Telescopes are great tools for observing the heavens, or even surrounding landscapes if you have the right vantage point. You don’t have to be a professional to build one though; you can make all kinds of telescopes as an amateur, as this guide from the Springfield Telesfcope Makers demonstrates.
(post is archived)