LASER

By Jack

INTRO

This report is about an interesting technology called the laser.  When I say laser you think of Star Wars and aliens and War of the Worlds.  A real laser is Light Amplification by Stimulated Emission of Radiation.  Sounds confusing, huh?  But in this interesting report you will find the true meaning of lasers, you will also learn the history of lasers, why the laser was invented, and who can use the laser.  And I hope you donŐt get bored.  HAVE FUN! J (The one and only Jack made this report.  No one in the whole world may copy this report with out contacting the Harris Residence.  At.  Thank you.)

HISTORY

LetŐs begin with the inventor of lasers.  According to About.com Albert Einstein came up with the theory of the laser.  A man named Gordon Gould probably made the first laser  (It is said that two people named Zeiger and Townes helped him make the laser.).  But there is a rumor that a guy named Theodore Maiman made the first laser.J 

This reason Gordon made the laser is becauseÉ  The maser wasnŐt a very good for communicating with satellites and astronauts in space.  Because the maser had trouble reaching the astronauts on the moon.  It was a little far for the maser.J

So Gordon made a better version of the maser called a laser.  It was used a lot more than a maser because the laser was better and more reliable than the older, stranger, slower maser.J 

And lasers are getting better every single day.  Even while we gulp air into are lungs.J

 

 WHY WAS THE LASER INVENTED

According to Inventors.com the laser was invented to improve communication with satellites in space.J

Because incense space exploration in the U.S. was being increased every day.  The U.S. needed something that could reach farther then the maser, they needed a more functional, trustworthy tech that was better than the tech that they had at that moment.J

WHO CAN USE A LASER

Every one now a days can use lasers.  Such as blind people who are hunting.  Here are a couple reasons why people use lasersÉJ

Blind people use lasers to pick out prey.  Because they might mistake you for a deer or something.  So they need lasers so other people who can see, can see were they are shooting.  So if a red laser is on you, you know that some blind guy is mistaking you for his prey.  So a laser is mounted one there gun.  So if a laser was on you.  You know that a person is aiming at you so you better move.J 

Construction companies use real burning hot lasers to cut through granite cement and rock.  So thatŐs why things now days are cut in perfect lines.J

Conclusion

A laser is the technology of the day.  From maser, to the laser, to laser pointers, to dangerously hot lasers for cutting, lasers are the tech of the future.J


Bibliography

 

Bibliography

http://www.colorado.edu/physics/2000/lasers/index.html

Colorado University

Lasers

24 April, 2007

This web site has a good pictures of thing when you make them  laser.  It has 15 pictures.  And iti gives you a good idea of lasers.

 

Bibliography

http://en.wikipedia.org/wiki/Laser

Wikipedia

Laser

24 April, 2007

This web site has 7 awesome pictures of how lasers work and this web site gives you a good idea of what lasers are made out of.  And it tells you what laser stand for.

 

Bibliography

http://www.defensetech.org/archives/002584.html

James Keppel

Arabs to Hezbollah

24 April, 2007

This web site has a couple pictures.

 

Bibliography

http://inventors.about.com/od/lstartinventions/a/laser.htm

Mary Bellis

History of Lasers

30 April, 2007

This web page has  one picture and gives you the history of lasers.

 

Bibliography

http://230nsc1.phy-astr.gsu.edu/hbase/optmod/lasosc.html

Unavailable

Pulsed Laser Oscillator

1 May, 2007

This website tells you how a laser can be so condensed.