Reader Input By Make: EditorsMake: EditorsView more articles by Make: Editors May 8th, 2009 Tales of Senft Stirling engines, Einstein’s Riddle, and the joys of generalism. Tagged MAKE 18 By Make: EditorsMake: EditorsView more articles by Make: Editors Discuss this article with the rest of the community on our Discord server! ADVERTISEMENT Subscribe now to Make: MagazineThe official magazine of Maker Faire Related Articles from Make: From the Shed: New ArrivalsMake: ESP32 Starter Pack$36.00PicoBricks Base Kit: Robotics Project Starter Kit$68.99BerryBot Programmable Educational Robot$54.99 Get Make: Magazine $19.99