The science pros at TKOR show you how to build a DIY arc furnace using scrap metal.

Ring with rectangular cabochon - easy jewelry making from copper wire 386 This is the same technique used with 383 pendant, 384 braceletand 385 ring This method matches the cabochon larger than 1cm.

If you’ve ever wondered what it takes to bend steel the size of a billboard, this one’s for you. It all started with a pretty simple goal: reshape massive steel plates—each about 145 inches long and ...