I am writing my term paper on the different daily uses of lasers.  What typical things using lasers can you think of? i.e. printers, cd players...  Thanks for your help!
213386
Some industrial uses for lasers are cutting, etching, and welding. Lasers play an important role in the medical field as well. They can be used in various surgeries, and I've worked on some lasers back in the 80's that were used to accurately position a patient for radiotherapy. Just about anything that needs lined-up or pointed-at can use a laser, for example, a laser level, or a laser sight on a gun.
81446
LASER is the acronym for "Light Amplification by Stimulated Emission of Radiation".  It is, first, a process that is explained by quantum mechanics and statistical mechanics.  At this point, it has come into common use, and can also refer to either the light or the device used to produce this type of light.  It does not have a higher energy than light produced by other means, as the energy only depends on the frequency of light.  It does have a higher intensity concentrated into a smaller area, and much higher coherency than light from the sun or a light bulb.\n\nAlso, all light, regardless of how it is produced, travels at approximately 300,000 km/sec in a vacuum.  That value does not differ from one type of light to another, or one color of light to another.
123430
Logitech Laser all the way!!!!
445915
Lasers are usually faster, produce somewhat better text and cost less per page, but they are a bit more expensive to buy and are normally black and white only.  (Color lasers are prohibitively costly for home/small office use.)\n\nInkjets, while slower, are better for images and can do things like color charts that cannot be done on a black and white laser.  They cost almost nothing to buy these days (a low-priced inkjet often costs little more than the ink cartridges that come with it).  But the ink is much more expensive than toner for lasers, because it does not last nearly as long.\n\nOne more thing:  inkjet ink will clog if the printer is not used regularly (say, every few days).  That is extremely wasteful of ink and greatly increases the net operating cost.  If your printer may sit idle for weeks at a time, you will find a laser far more cost-effective.\nGood luck!!
579893
A laser (from the acronym Light Amplification by Stimulated Emission of Radiation) is an optical source that emits photons in a coherent beam. The verb to lase means "to produce coherent light" or possibly "to apply laser light to", and is a back-formation of the term laser.\n\nLaser light is typically near-monochromatic, i.e. consisting of a single wavelength or color, and emitted in a narrow beam. This is in contrast to common light sources, such as the incandescent light bulb, which emit incoherent photons in almost all directions, usually over a wide spectrum of wavelengths.\n\nLaser action is explained by the theories of quantum mechanics and thermodynamics. Many materials have been found to have the required characteristics to form the laser gain medium needed to power a laser, and these have led to the invention of many types of lasers with different characteristics suitable for different applications.\n\nThe laser was proposed as a variation of the maser principle in the late 1950s, and the first laser was demonstrated in 1960. Since that time, laser manufacturing has become a multi-billion dollar industry, and the laser has found applications in fields including science, industry, medicine, and consumer electronics.
326677
Yep, mostly depends on where you'll be, how frequently you'll be moving around- if at all, etc.  Paperback books, DVD's, MP3 player with *your* own music (don't bring CD's, they'll get scratched from the sand), tennis ball, mini squirt guns, nerf football, etc.  Oh and a good imagination.  Some places have internet with web-cams.  Oh, and get your phone-card through Segovia online.
78851
I don't think you can... A Laser Beam is just an intense form of light created by the stimulated emission of radiation (hence Light Amplification by Stimulated Emission of Radiation L.A.S.E.R).\n\nElectricity is the movement of electrons through a physical circuit, so can't see how it can be done via light.\n\nHowever obviously Lasers are used in many applications (telecoms, house hold stereos, CD Players etc)... the light is pulsed at a very high speed and these pulses are decoded into an electrical signal.\n\nHope that helps.
34576
Our new Macintosh computer will arrive soon.\nThe  12 inch computer monitor is too small.\nOur Christmas jewelry sale offers extraordinary values on gold heart pendants.\nMy two hour commute to work everyday takes too long.\nI completed most of my biology homework this semester.
307266
Hello. I recently purchased an HP 3600n Color Laser* from Office Depot to replace 2 of my three printers. To date I am very happy with the results. It did not completely replace my HP G85, since it is also my primary fax machine. It did however replace my Lexmark 4039 10Plus and all primary color printing. It still leaves me with an OkiData 390 to print labels. I use the 5000 box of continious feed labels, so at the moment there is nothing I can do about replacing it. Between my two companies, the wifes eBay and the three kids printing daily, we print a case of paper a month (5000 sheets).\nI would have loved to have purchased an all-in-one color laser but all things consided I am very happy.\nOne thing that swayed me to the HP, in that price range, was it came with a print server built in.\n\nI hope this helpped.
6431
HP\n\nUnless you want to spend more than $1,000, get a HP.  In the sub-$1,000 area, they are the best.\n\nAny printer less than $100 should be considered a throw-away.  They only sell them that cheap with the hopes that you will spend many times that on their brand of ink.\n\nMy other 2 cents: Color LaserJets are in the sub-$300 range and worth every penny.
144594
To get a good start, try www.howstuffworks.com.\nLook in the back of a textbook to see where the editors got their information.\nFind out which companies develop/research chemical lasers then look at their websites.
205327
I am using Epson laser color printer in the office (I don't remember the model).\n\nBut in Home use I prefer Canon, it is more officiant
555773
try cleaning it with a lens cleaner..if that doesn't work make sure the computer is recognizing it. If it is and it still won't work  the laser may have gone out and you'll have to replace it.
397377
A very good, complicated and interesting question.  Katy brought up a good point.  You could write entire book on how cell phones has changed daily life around the world.  Just think of how many business decisions are now done in real time rather than getting to a land line (telephone.)  Or how about a reporter in the field giving a story before he or she has set up the equipment to broadcast the story?  Or how about the reporting of the Iraq war where no broadcasting equipment was even available?  With cell phones, many of which now have cameras built into them, people are taking pictures of crimes as they occur.   This is also true for reporting crimes in areas that didn’t normally have phone access.\n\nSince you didn’t speak of which wireless technology you were referring to I can only assume you are talking about all wireless technology so I will discuss some others here.\n\nIn the last few years wireless networking for home computing has really taken off.  It has become much more affordable and easier to configure for the average person.  Now here is where it gets interesting.   Many new laptops have the ability for you to use a wireless networking adapter in them or with them.  Some cities, including mine in Anaheim California, are going to make the whole city wireless!   They are going to install wireless Internet transmitters all over Anaheim so everyone has a wireless connection to the Internet.  Even people visiting from out of town can use the wireless system but they have to pay a small access fee.   Can you imagine driving across the county someday and being able to access the Internet right from your car?\n\n\nLet us not forget that the first wireless technology started with the radio.  Man discovered radio in the late 1800’s.  Radio technology grew in bits and pieces but by the turn of the century wireless communications had been established.  All wireless routers and wireless Internet communication uses radio waves to send the data.\n\n\nLet us not forget RADAR.  RADAR is an acronym for Radio Detection and Ranging\nand helped us win the world war II.  One of the first uses of Microwave technology was used in RADAR in the world war II also.  Most households now use Microwaves to cook food with so radio waves also help us heat things\n\n\nWhat about television transmission?  Isn’t that also wireless?  Although many people now use cable (because they have paid for premium channels) television is a wireless technology.\n\nAnd others:\n\nRadio transponders to find lost aircraft (also a transponder)\nLo Jack stolen automobile retrieval device (also a transponder)\nNavigation\n\nRadio Frequency Identification (RFID) (also a transponder)\nRadio Frequency Identification is a way to remotely receive data from RFID tags or transponders.  They are used on toll roads and even at Mc Donald’s to buy lunch with a swipe of a small device.  They are used soo much that this needs to be researched all by itself.\n\nWhat all wireless technologies have in common is that they are all based on Radio waves.  All of things that I have mentioned are based on Radio technology \n\n\nP.S.  I usually don’t cut and paste and if I do I will say that, that is what I am doing and explain where that information came from.  I like to read information from multiple information sources then put that information together in my own words while keeping the article technically and factually correct.  And as always, I will point to web sites or other information to prove that my information is factual.
53031
The internet.\n\nElectricity.\n\nRadio.  (including television, satellite, etc.)\n\nMoveable type/printing presses.\n\nA couple ideas, I may add more later...
188487
Smoke or fog will work.  There are also 100mW red lasers out there (wickedlasers.com should do the trick) that have some visibility in daylight, but this always depends on there being something (even the tiniest amount of dust) in the air to scatter off of.
447003
ever heard of ultra sound.  It can be used.  But the frequencies and power needed to produce results in some things would actually cause damage to surrounding tissue.