How lasers work (in theory)

How does a laser really work? It's Bose - Einstein statistics! (photons are bosons)

Check out Smarter Every Day's video showing lasers in real life: http://bit.ly/uBwhU2

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• Category

  Science & Technology

[Mrwutevah]

It's not 66,7 and 33,3. It's 2/3rds and 1/3rd. You can't express the numbers completely accurate in decimal form.

[bobaethan]

That 1% is when they just blow up.

[Monty Lawless]

WHY ARE THERE SO MANY MATH COMMENTS ON THESE VIDS!?!?

[Zarnirox]

So lasers are a concentrated photon orgy? Awesome! :)

[RKH1502]

This is why I love base 12.

[xseth1]

I still don't understand how they 'want' to be like other photons. They're not living things.

[xseth1]

Metric? It's called the decimal system.

[xseth1]

33% is the percentile representation of 1/3, and 66% is 2/3. Unfortunately, in the decimal system, there is no definite value that can be assigned to 1/3 or 2/3.

[TheAnonymus2012]

you can, if you use the .9 infinitesimal rule. also, there are systems for counting besides the metric system. if you use the dozenal system it is quite easy to express two thirds, and 1/3 as decimal.

[orangehaircow11]

They have energy, and all exercises of energy release heat.

[iplz]

what makes some lasers burn?