2. The Laser Tyler Willison 4 th Hour Social Studies January 2 nd, 2008 Expert in Residence

3. The Laser Although you probably think the laser is only in movies as a special effect, it is used often in everyday life. Although you probably think the laser is only in movies as a special effect, it is used often in everyday life.

4. How the Laser works The laser works by the light atoms inside of a ruby becoming stimulated into a narrow beam that emerges from the crystal in that ruby’s color. The laser works by the light atoms inside of a ruby becoming stimulated into a narrow beam that emerges from the crystal in that ruby’s color.

5. History of the Laser The laser was invented in 1957 by a physicist known as Gordon Gould (right). However, before he could get a patent, a man named Douglas Towne took his idea. Later, Gould sued Towne for stealing his design, and Gould won after thirty years in the July of 2000. The laser was invented in 1957 by a physicist known as Gordon Gould (right). However, before he could get a patent, a man named Douglas Towne took his idea. Later, Gould sued Towne for stealing his design, and Gould won after thirty years in the July of 2000. Right, Gordon Gould. Right, Gordon Gould.

6. Uses for the Laser The laser is used in devices that read discs, such as CDs, DVDs, video games, and the Blu – Ray disk. The laser in the Blu – Ray, however, is blue. The laser is used in devices that read discs, such as CDs, DVDs, video games, and the Blu – Ray disk. The laser in the Blu – Ray, however, is blue. Right, a blue laser used in the Blu – Ray video console. Right, a blue laser used in the Blu – Ray video console.

7. Uses for the Laser The laser is also used in medical procedures where more precision is required. This can include LASEK eye surgery, the removal of tumors, and the killing of cancer cells. The laser is also used as a scalpel and can replace stitches. The laser is also used in medical procedures where more precision is required. This can include LASEK eye surgery, the removal of tumors, and the killing of cancer cells. The laser is also used as a scalpel and can replace stitches.

8. Uses for the laser Another use for the laser is the laser lock. This mechanism reads scans the ridges in a person’s finger with a weak laser, and compares them to recorded prints in it’s computer memory. Another use for the laser is the laser lock. This mechanism reads scans the ridges in a person’s finger with a weak laser, and compares them to recorded prints in it’s computer memory.

9. Uses for the laser A laser can also be used in factories and construction facilities as a welder or saw. It can perform both of these tasks because it produces such extreme heat that metal can be fused or cut almost instantly. A laser can also be used in factories and construction facilities as a welder or saw. It can perform both of these tasks because it produces such extreme heat that metal can be fused or cut almost instantly.

10. Uses for the Laser Yet another use for the laser is in the military. It can be used widely in this field, with uses such as defense from missiles, protection from being found on radar, and as a weapon, the last of which has been attempted often, and involves many failures. Yet another use for the laser is in the military. It can be used widely in this field, with uses such as defense from missiles, protection from being found on radar, and as a weapon, the last of which has been attempted often, and involves many failures. Right, the Greek army uses low power lasers on rioters.

11. The Laser Even though the laser appears in many films about the future, it is used often in modern society and will definitely grow in use over the next few decades. Even though the laser appears in many films about the future, it is used often in modern society and will definitely grow in use over the next few decades.