Use Your Digital SLR Camera To Measure The Height Of Aurora Borealis

If you want to see Aurora Borealis (the northern lights) in 3-D with your SLR cameras, and even determine the altitude where electrons in the atmosphere emit the light that produces aurora,  Ryuho Kataoka from the National Institute of Polar Research in Tokyo, Japan can show you how. Kataoka came up with an idea for a new method to measure the height of aurora borealis after working on a 3D movie for a planetarium. They used two digital single-lens reflex (SLR) cameras set 8 km apart. read more

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