How Illuminated Are You About Lasers?

There's still something satisfyingly futuristic sounding about Lasers, even though they're astonishingly commonplace in 2012. But how do they work? (tip: they're not miracles)

That's possibly more than I ever wanted to think about Laser eye surgery, but beyond that, it's a great way to cover off slightly more than the very basics about a very common but commonly misunderstood technology. [YouTube via MAKE]

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