Paper Pop – Come and get it!
robives.com is made possible entirely by the members and shopper on
Rob Ives
Archimedes screw – double thread revisited
Steve Seidl from frankenpaper.com sent me these pictures of a double
Archimedes screw – double thread
My first draft at an Archimedes screw in the previous post
A Brief Diversion – The Archimedes Screw
This morning I had an Google chat message (I'm usually
