Applications and Benefits of Electromagnetic
Infrared
Health conditions can be diagnosed by investigating infrared rays from the body. Special infrared photographs called thermograms are used to detect blood circulation problems, arthritis and cancer. Infrared radiation can also be used in burglar alarms. A thief without his knowledge will block the beam and hide the alarm. The remote control communicates with the TV via infrared radiation produced by the LED (Light Emiting Diode) contained in the unit, so that we can turn on the TV remotely by using the remote control.
Ultraviolet
UV rays are needed in plant assimilation and can kill germs of skin diseases.
X-ray
X-rays are commonly used in medicine to photograph the position of bones in the body, especially to determine broken bones. However, the use of X-rays must be careful because the network of human cells can be damaged by using X-rays for too long.
From the discussion above, it can be concluded that the role of electromagnetic waves is very beneficial in our daily lives, without our being aware of its existence.
Electromagnetic spectrum is the range of all possible electromagnetic radiation. Electromagnetic spectrum can be explained in wavelength, frequency, or power per photon. This spectrum is directly related:
Wavelength multiplied by frequency is the speed of light: 300 Mm / s, which is 300 MmHz
The energy of a photon is 4.1 feV per Hz, which is 4.1µeV / GHz
Wavelength multiplied by energy per photon is 1.24 µeVm
Electromagnetic spectrum can be divided into several areas that range from high-energy shortwave gamma rays to microwaves and radio waves with very long wavelengths. This division is actually not very firm and grows from practical uses that have historically come from a variety of detection methods.
Usually in describing the energy of the electromagnetic spectrum expressed in electronvolts for high-energy photons (above 100 eV), in wavelengths for medium energy, and in frequencies for low energy (? = 0.5 mm). The term "optical spectrum" is still widely used in referring to the electromagnetic spectrum, even though it actually only covers a portion of the wavelength range (320 - 700 nm) [1].
Applications and benefits of electromagnetic waves in everyday life
Some examples of applications of electromagnetic waves in everyday life are described as follows:
Infrared Satellite Telescope
A Space Infrared Telescope Facility (SIRTF) infrared telescope. SIRTF is a fourth star surveillance system launched by NASA. Previously the United States space agency had launched the Hubble Space Telescope, orbited by the space shuttle in 1990; Gamma Ray Observatory, launched in 1991; and the Chandra X-Ray Observatory was launched in 1999.
Hubble Space Telescope
Each of these monitoring systems is used to observe lights of a different color, which cannot be seen from the surface of the Earth. Each system also has different functions from one another.
With the Hubble Telescope, the researchers searched for the "reddest" object, which meant it was very far away. With SIRTF will be able to see the population of stars in very distant objects because SIRTF will work in infrared light waves.
Before that in 1983 a collaboration between the United States, the Netherlands and the United Kingdom had launched IRAS (the Infrared Astronomical Satellite), which also still functions today.