Hello, today I'll be talking about LASERs. We've all heard of them, usually we just look at them as nothing big, but if you think about it, LASERs are can be very important from neon lights to CAT scans.

What does LASER stand for?

LASER was originally an acronym, but is now used as a noun. LASER stands for Light Amplification by Stimulated Emission of Radiation.

What is a LASER?

A LASER is a wave of molecules and other stuff put into a beam of light that goes from one sensor to another.

What kind of stuff can LASERs be used for?

LASERs can be used to do quite alot of things such as cutting metal, scanning discs, scanning bodies to find out what's wrong with them or a trip wire for alarms.


Who invented the LASER?

The first successful LASER that showed a beam of light was the Ruby LASER made in 1960 by Theodore Maiman.

How are LASERs made?

LASERs are made by directing a beam of light through a specialized lens which focuses the light to a certain intensity. (-Ask.com)

What was the first use of the LASER?

The first public use of the LASER was the supermarket barcode scanner, introduced in 1974.


Do LASERs come in just one color?

No, since there are LASERs with white light which is a multitude of colors combined into one light to make white light.