A is for Archimedes Screw and B is for Boat
I’ve waited a long time for an opportunity to post this picture of a detail of a model of an Archimedes Screw.
It was part of a display of working models to show ways of moving water uphill.
These Ancient Greeks were clever! Eureka!
I came across this old boat on a walk a couple of years ago. I must go back to see if (a) it is in an even worse state , (b) it has been “tidied up”or (c) the rope has worn away and it has drifted out to sea.