solar heat : SOLAR POP CAN CANNON

THIS IS THE SOLAR CAN CANNON THAT I MADE FROM 2 POP CANS. THE IDEA WAS TO SEPARATE THE 2 CANS SO I COULD INSERT A DISPLACER INSIDE. THE PROBLEM WAS I COULD NOT GET THEM APART WITH OUT DENTING THE CANS, EVEN UNDER HOT WATER. I GUESS I CRAMMED THEM TOGETHER TO TIGHT. BUT IT WAS NO MATCH FOR THE FRENSEL LEMS I RECIEVED FROM DAN AT GREENPOWERSCIENCE. HE DID A REAL GOOD JOB OF FRAMING IT. IT HAD THE MOUNTING HOLES DRILLED IN IT ALREADY. IT IS BOTH STURDY AND SMOOTHLY DONE. AFTER I SET THE

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