Infrared waves are light waves that are not visible to the human eye. Infrared was discovered in 1800 by William Herschell during his experiment on colored light temperature. There are numerous objects in space that can only be seen using special infrared viewing instruments.Know More
Infrared waves are not part of the visual spectrum due to their longer wavelengths and warmer temperatures. Herschell discovered this by measuring the heat of colored thermometers and noticing that thermometers warmer than red were emitting light that was not visible.
Infrared objects in outer space can be viewed using the James Webb Space Telescope. In the Orion nebula, 2,300 planet-forming disks were discovered by spotting the warm, infrared light of their dust. New stars have also been spotted using the infrared telescope.Learn more about Magnetism
Infrared waves are dangerous because they can cause burns, skin irritation, dehydration, low blood pressure and eye damage. A form of heat radiation, infrared waves are most dangerous at high levels.Full Answer >
Infrared waves are used to connect remote controls to TVs, to keep food heated and for heat treatment therapy. Infrared technology can also be used for thermal imaging and to see images from space. In addition, some lasers, such as those that read CDs, use infrared radiation.Full Answer >
Some interesting facts about cheerleading are that the sport dates back to the late 1800s and the majority of cheerleaders at that time were men. Johnny Campbell was one of the first cheerleaders.Full Answer >
The element chromium is a hard, brittle metal with the symbol Cr, whose atomic number is 24. Chemist and pharmacist Nicholas Louis Vauquelin first discovered chromium in 1780.Full Answer >