Steven

i would want to research about laser detectors. http://www.mcelasers.com.au/lasers.php

laser is an abbreviation for Lasers excites atoms and causes them to give out light in the form of light energy. The light produced is called photons. The photons produced strikes the other atoms which excites them and causes them to create more photons. Eventually this causes them to bounce back and forth and become more dense. This is the laser beam.
 * L**ight
 * A**mplification by
 * S**timulated for
 * E**mission of
 * R**adiation

The crest of a wave is the point where the wave bends and reaches its maximum or upward height. The trough of a wave is the point where the wave bends and reaches its lowest or downward position. The amplitude is the distance the wave has traveled from resting position to either the crest or trough. (Distance from rest to crest) The wavelength is the length of a complete wave. It can be measured from crest to crest or trough to trough. The frequency of a wave means how often do particles in a medium vibrate when a wave passes through. The period means how long it takes for a particle to make a complete vibrational cycle.

Transverse Wave. It travels perpendicular and the waves travels up and down vertically.

Longitudinal wave. It travels parallel and the waves travels back and forth horizontally.

research: physlets constructive interference physlets destructive interference applications of laser

Laser experiment: The point of this experiment is to get a laser pointer and get some mirrors to reflect the laser off the mirrors. This would act as a infrared detector except that the laser would not be able to detect anything. I would also have a device in the center and have the laser surround it. First i will have to research on the law of reflction.

The angle of incidence is the same as the angle of reflection.The arrow striking the mirror first is the incident ray and the arrow rebounding off the mirror is the reflecting ray. The dotted line is the normal line. The normal line divides the incident ray and the reflecting ray into two equal angles.
 * [[image:http://scienceworld.wolfram.com/images/spacer.gif width="2"]] ||||||  || [[image:http://scienceworld.wolfram.com/physics/limg155.gif width="253" height="169"]] ||
 * [[image:http://scienceworld.wolfram.com/images/spacer.gif width="2"]] ||||||  || [[image:http://scienceworld.wolfram.com/physics/limg155.gif width="253" height="169"]] ||

By determining the angle of incidence and angle of reflection, it could help me adjust the mirrors to the correct position so that all the lasers would reflect off to the correct mirror. The positioning of all the mirrors and their angles are the key points in this experiment.

Here is a final image of the experiment. To be able to see the laser you have to sprinkle baby powder or flour over the laser because light needs to reflect off something so it can be able to be seen.