Future efforts, he assures us, will involve sand-insulated molds and careful ... cut the resulting ingot to a rough piece of stock for turning. Poor finish on machined bismuth.

Future efforts, he assures us, will involve sand-insulated molds and careful ... cut the resulting ingot to a rough piece of stock for turning. Poor finish on machined bismuth.

You buy a bismuth ingot and melt it in a pot (one that you ... colorful as a thin layer of oxidization forms. You can even use molds if you want to do something more creative, from funny colorful ...