Tag Archives: rectilinear propagation of light

Changing the focal length of my mind’s eye…

By | March 20, 2021

Yesterday, I had a long lovely chat with a friend in Berlin, who shall remain nameless for the nonce since I do not know whether he would like being called out online like this. The days of the blogosphere being an intimate space for conversations are long past and we must now be far moreā€¦ Read More »