Slicing a 20,000 Year-Old Mammoth Tusk
In his job as a university machinist, Dale Pomraning has built and fixed earthquake detectors and aurora rockets. But recently he worked on his first object that was once part of a living creature. He and others sliced a six-foot, 100-pound wooly mammoth tusk lengthwise, sort of like a salmon filet. Seven people spent six […]