265 Massachusetts Avenue, Cambridge, MA 02139 csf@cambridgesciencefestival.org

Of Lightbulbs and Lasers

On April 24, the Cambridge Science Festival will open with a laser show. You’ll be sitting in the dark, waiting for the show to start — and then you’ll think, “WAIT! How does that work?

Let’s start with a thought experiment…

Lasers and lightbulbs continue below the cut!

What: Cambridge Science Festival Laser Show
When: Saturday, April 24, Noon
Where: Cambridge Public Library, 449 Broadway. Free shuttles run from the Harvard Square Red Line T stop.

Next week: how do we get from stimulated emission to a laser pointer?

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