Abstract
I am standing in a twilit underground lab looking at the most powerful car headlight in the world. Its source, a blue-laser diode, is 1000 times as bright as an LED but uses just two-thirds the energy. I had to surrender my passport to see it, for I'm at BMW's highly secure, steel-and-glass research mecca, the FIZ (for Forschungs- und Innovationszentrum, or Research and Innovation Center), an immense complex in Munich replete with workshops, clay modelers? caves, and a vast wind tunnel.
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