Take a sheet of copy paper and grip it flat in your hands. Next, gently push down evenly on both sides to form a smooth curve. Now, twist your left thumb up and your right thumb down. Ta-da! You have ...
DEL MARDEL MAR — Undoubtedly, the most-repeated question that rock sphere-making expert Paul Williams hears as he demonstrates his craft at the San Diego County Fair is, “How long does does it take to ...
Ok, say I have many pentagons. <BR><BR>I want to build an orb or sphere or whatever a 3 dimensional ball out of pentagons.<BR><BR>Is there a predetermined limit to the # of pentagon shaped pieces I ...
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