becaus then you can shoot people
The main purpose of a laser is to focus electromagnetic radiation (light) on to a single point.
The purpose of an alignment laser is to align materials evenly with other materials. It is commonly used in specialty manufacturing and industrial production.
Laser precision is considered to be as close to perfect as possible. Problem diagnosis is made easier and measured more accurately in a fraction of the time, so the purpose of having a laser shaft alignment is that it delivers fast and accurate results.
Laser spectroscopy studies the effects of lasers on molecules. The main purpose of laser spectroscopy is to learn more about the reactions of molecules to light, and how this can aid in development of light-sensitive technology.
The purpose of the fuser in a laser printer is quite necessary. It is the part of the printer that heats up and makes the entire printing process possible. Without it, a laser printer would not work.
A skin toner can have several purposes. Many people find use of skin toners through their ability to remove residue left over from makeup or any other other objects. Toners can also restore ph levels of the skin.
Depends on the purpose. But if you combine neon with helium, and obtain a helium-neon laser, you can see that it is much smaller than a xenon laser.
The cartridges in laser printers contain toner that allows the print to show on the page. A laser printer works by having a laser directed at a photosensitive drum. Without the toner, charged particles from the drum would be transferred to the paper, but they would be colorless.
The laser check printing software is more advanced than others due to a tracking laser 'watching' the page for any paper discrepancies and print errors which can be put right before the print is finished.
A surgical laser is used to make incisions on soft tissue instead of using a physical scalpel because it is more accurate and does less damage to the surrounding tissue.
The red ruby laser is used in standard DVD players to read standard DVD discs. They are now being superseded by the blue laser DVD player, otherwise known as Blue-Ray players and discs.
The purpose of a laser iridotomy is to allow an equalization of pressure between the anterior (front) and posterior (back) chambers of the eye by making a hole in the superior peripheral iris