Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.


Sign in to follow this  

Ancient mirror with interesting cell

Recommended Posts

I saw this in the Deutsches Museum last week and it shocked me- I thought the idea of using bearings as anti-astigmatism edge support  (with whiffletrees) was a new discovery but looking at the fascinating cell design of this c1794 metal mirror by Johann Hieronymus Schroeter it seems not! Strange arrangement though with both lateral and vertical wheels kinda cancelling though I guess if they can move laterally on their shafts 🤔 Difficult to take pics but there were three sets of these around periphery of the cell




  • Like 4
  • Thanks 1

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.