A gas,liquid,or solid is given energy,usually by electricity, "exciting" the atoms and making them release photons. The photons hit other atoms, making them release photons of identical wavelength.Mirrors on the ends of the device reflect the photons, but one mirror is half-silvered so the device emits an laser beam.
What is the first ever stock exchange?
Back on topic.
No.
Can I win the 2013 Powdie awards?
A: Less than a million from the united states and the rest? No.
Q: I revived this thread back in 2012, shall I do it again? (Just found out it is still alive somehow?!!)
Yes; very interesting...
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1. If you were woke up tommorow and you were simon what would you do. 2. Is that how you spell 'tommorow'?