5 results found, view free essays on page:
-
Solid State Lasers Back And Forth
2,014 wordsLaser is an acronym for light amplification by stimulated emission of radiation. In the last century many types of lasers have been used for many different applications from welding to surgery to military and even many uses in every day life by harnessing the principles of light and stimulated emission. To understand how lasers work we must first understand the physics behind light waves. Light is emitted from a source and travels in straight lines and when it strikes an object is either absorbe...
Free research essays on topics related to: stimulated emission, compact disk, back and forth, solid state lasers, laser light -
Light Waves Light Rays
1,064 wordsToss a pebble in a pond -see the ripples? Now drop two pebbles close together. Look at what happens when the two sets of waves combine -you get a new wave! When a crest and a trough meet, they cancel out and the water goes flat. When two crests meet, they produce one, bigger crest. When two troughs collide, they make a single, deeper trough. Believe it or not, youve just found a key to understanding how a hologram works. But what do waves in a pond have to do with those amazing three- dimensiona...
Free research essays on topics related to: apple, light waves, light rays, 3 d, waves -
One Of The Major Light Waves
714 wordsLiquid Lcd Monitor LCD MONITOR Liquid Crystal Display (LCD) stands for Liquid Crystal Display. Liquid crystals are transparent substances exhibiting both sold and liquid matter properties. Light passing through liquid crystal follows the alignment of the molecules that make them up. Applying electricity changes their molecular alignment thus changing the way light passes through them, and by putting these individual displays together you can create a display screen which is tremendously smaller ...
Free research essays on topics related to: lcd, one of the major, 90 degrees, liquid, light waves -
Charged Particles Electric Charge
1,314 wordsJ. J. Thomson Science lecturers who traveled from town to town in the middle nineteenth century delighted audiences by showing them the ancestor of the neon sign. They took a glass tube with wires embedded in opposite ends... put a high voltage across... pumped out most of the air... and the interior of the tube would glow in lovely patterns. In 1859 a German physicist sucked out still more air with an improved pump and saw that where this light from the cathode reached the glass it produced a f...
Free research essays on topics related to: electric field, electric charge, negative charge, j j, charged particles -
Radio Waves Light Waves
335 wordsRadio astronomy uses radio waves to study regions of space. Radio waves are a form of electromagnetic radiation like visible light waves only with much longer wavelengths. Visible light waves are oscillating electromagnetic signals with wavelengths of less than one millionth of a metre, whereas radio waves have wavelengths in the range of a few millimetres to several metres. Radio telescopes gather and concentrate the radio waves from an astronomical source. The signal received is then electroni...
Free research essays on topics related to: light waves, radio waves, visible light, wavelengths, waves
5 results found, view free essays on page:
