Infrared waves
There is a way to see in the dark using infrared visioning, infrared waves are part of the EM spectrum (electromagnetic spectrum).The EM spectrum is the full spectrum of light not just the small portion that is visible.
In the electromagnetic spectrum the infrared the wave has a frequency range of .003-4*10^14 Hz and a wavelength range of 1mm-750nm. This particular wave is produced by the motion of atoms and molecules in an object. Infrared waves are all around us, they are radiation from sunlight, heat from fire, and animals. There also can be infrared waves that are not hot, they have a shorter wavelength, an example of these waves being utilized around us are in our television remote. Infrared waves are also used in military applications, firefighting, used by the police to find criminals on the run, and even for extermination purposes. An interesting phenomena related to infrared waves is that they move through the atmosphere without heating it until it hits an object. Infrared waves are typically harmless, unless the cops are after you and tracking you with infrared sensors.
Infrared waves have many practical uses today and they are also all around us, they help us feel the all the warmth of the world.
tags: infrared , applications , Em spectrum
2 comments:
After reading this, I learned a lot about infrared radiation, even though I did this topic too. I liked your approach to it since it was so different than mine and I was able to learn more. I like your humor involving the safety concern. Great job with the article and great pictures!
Like Cormac said, I liked your use of humor about safety concerns. You did a great job listing how infrared waves are used as well as having some neat pictures to emphasize your information.
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