Light-transmitting concrete. “A wall made of ‘LitraCon’ allegedly has the strength of traditional concrete but thanks to an embedded array of glass fibers can display a view of the outside world, such as the silhouette of a tree, for example.”
pinchy dot org.
A man, a plan, a canal, palindrome.
So, should people who live in light-transmitting concrete houses not throw stones?
Probably not. The stones would tend to bounce off the walls and hit people in the head.
would work well for masochists, tho *ducks*
Hmm, perhaps both masochists *and* ducks.