Leonardo’s Mirror Grinding Machine
The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it.
This machine was most likely designed by Leonardo while he was either investigating the different ways that light reflected off things or maybe he was planning on inventing a telescope or some other optical device.
Here is video i made showing exactly how it works, don’t forget to subscribe to my Youtube Channel 😉 –
Devices like these are still used nowadays by amateur telescope/optical instrument makers round the world. The version they use is a table top sized mechanism but is essentially of the same design, the only difference being the use of an electric motor instead of the hand crank