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.Continue Reading
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
According to the BBC, electromagnetic waves can move freely through a vacuum, as they do not need to travel through matter. In fact, although a slight difference between speeds exists, electromagnetic waves travel faster in a vacuum than through matter.Full Answer >
Magnets are used in a variety of everyday items, including computers, televisions, credit cards and microwave tubes. The seal around most refrigerators and freezers is magnetic, and even some cabinets feature magnetic fixtures to keep them from opening. Howmagnetswork.com adds that a variety of solenoids in home electronics utilize magnets.Full Answer >
A list of magnetic metals includes iron, nickel, cobalt and metal mixtures that include at least one of the three. Magnetic metals are classified as metals that are attracted by the magnetic field.Full Answer >
A Faraday cage or box is an enclosure designed to keep electromagnetic fields either out or in. It is made of a conductive material and works by canceling out the charge of the field striking it.Full Answer >