| |
Infrared
Page history last edited by ben 1 yr ago
Name of EM Spectrum
Length of wave (short): (Ben Rea)
- There are far and near infrared waves
- Far infared waves are about the size of a pin, and near infrared waves are about the size of microscopic cells
Sources (Natural & Human made): (Dallin munk)
- human made.
Tungsten-filament lamps produce radiant heat instead of visible light. The filament, which is sealed in a gas filled bulb or quartz tube is heated by an electric and operated at a temperature of 4000 degrees F. to produce infrared rays.
-
Human Uses:(Dallin Munk)
- Scientific advances pertaining to infrared have allowed buildings to keep cool even in the summer. Gold transparent films in the windows of large office buildings reflect infrared and help to keep temperatures cool.
- Doctors use infrared lamps to treat skin diseases and relieve the pain of sore muscles. In these treatments, the infrared rays pass through the patient's skin and produce heat.
- Photographers use film that is sensitive to infrared rays to take pictures in places where there is no visible light. Burglar alarms also use infrared.
- Infrared is used extensively in specially-designed ovens for drying painted and enameled surfaces, leather, metals, papers and textiles.
-
Human Health Hazards:(Niko madison)
- Although infrared is important, it also has some dangers associated with it. The thin gold films on space crafts reflect infrared rays from the sun which can harm both people and the equipment on the craft.
- The rotary forge at Watervliet Arsenal was surveyed for infrared hazards on 9-10 March 1978. It was found that levels of infrared exceeding protection standards for 10-second exposures were present at distances less than approximately 3 meters from the radiation source. This radiation would, however, be easily detected by exposed personnel due to body heating and would not, therefore, present a serious health hazard due to whole-body heating. However, eye protection against infrared was deemed necessary due to possible cataract formation from repeated exposures.
-
Interesting Facts:(Niko madison)
- Infra means below; Infrared rays have a lower frequency other than red rays. Infrared devices were used during WW2 and enabled sharpshooters to see their targets in total darkness. Balometers are used to detect infrared. Balometers measure small amounts of heat produced by types of radiant energy, chiefly infrared rays. Infrared can be seen if exposed to compressed ai
-
Group members
- Ben Rea
- niko madison AKA U-NIK
- Dallin Munk
-
Sources
- http://science.hq.nasa.gov/kids/imagers/ems/infrared.html
- http://www.smgaels.org/physics/infrar_1.htm
- http://wwwghcc.msfc.nasa.gov/GOES/goeseasthurrir.html
- http://www.infrared.com/
Infrared
|
|
Tip: To turn text into a link, highlight the text, then click on a page or file from the list above.
|
|
|
Comments (0)
You don't have permission to comment on this page.