Lasers are neat! It almost seems like the photons of light have joined together to make a powerful and beautiful tool. The term "laser" really is a condensed word meaning: Light Amplification by Stimulated Emission of Radiation.
The above picture shows how light from helium and neon can become a laser light. Can you explain?
List some places or items where you may have hear the word laser and write them down.
Which one of the following is the type of pattern generated by laser? Which one is produced by sunlight?