This Week: Ancient water = ancient habitat?
In the News: Texas is dry and hot. Global warming?
Coming Thursday: Roaches: A lot smarter than you thought!
Smelters refine aluminum ore, but not iron ore, with electricity. A new electrolytic process for refining iron ore could save vast amounts of greenhouse gases.
Despite being merely microns thick, these impurity crystals jut like skyscrapers from the surface of NF 616 cast stainless steel, a specialized engineering material. All engineering materials contain small amounts of impurities, which play an important role in the mechanical properties of the material. This image was captured with a Scanning Electron Microscope (SEM). Courtesy [...]