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.Know More
Infrared waves have a wavelength lower than the threshold of visibility on the electromagnetic spectrum, so we cannot see them. However, we can feel them as heat.
Welders have a risk of eye damage through infrared waves involved in the process of welding. If the eye is exposed to intense infrared waves, it can cause blindness. Goggles can be worn to prevent this. Infrared waves are used in therapy for muscle pain, but if the waves are too strong, they can cause skin burns. Infrared radiation can sometimes cause low blood pressure in the elderly. Lastly, excessive infrared radiation exposure can cause dehydration as the body loses water because of the heat.
Rather than being regarded as dangerous, though, infrared waves are more often than not considered useful. There are five subdivisions of infrared waves. The shortest wavelength of infrared waves is used in short-range communication such as remote controls and mobile phones, and it produces so little heat that we cannot feel it. The next subdivision is "short wavelength infrared," used in longer-range communications. "Mid-wavelength infrared" is used in missile guidance, and "long wavelength infrared" is useful for thermal imaging. Thermal imaging is important in the medical field for diagnostic purposes, detecting levels of infrared radiation of the body. "Far infrared" has the longest wavelength and is used to detect galaxies and stars emitting infrared radiation.Learn more about Optics & Waves
The infrared portion of the electromagnetic spectrum can be divided into three regions of infrared waves, all of which have different lengths. Far-infrared waves measure from 300 gigahertz to 30 terahertz, while mid-infrared waves range from 30 terahertz to 120 terahertz. Near-infrared waves range from 120 to 400 terahertz.Full Answer >
In large doses, radio waves, also known as radio frequencies, can disrupt biological functions and break down tissue. There is still much debate over whether or not the radio frequencies emitted from mobile communication devices and the systems that support them pose any danger.Full Answer >
A radio wave is a type of electromagnetic radiation that, with sufficient intensity and duration, can result in serious damage or death to a human. Thermal effects caused by radio waves on the human body are especially dangerous, as radio waves can quickly heat tissues to lethal levels.Full Answer >
Infrared is used for keeping things warm, reading information and checking heat. The uses for infrared technology are so diverse because infrared not only detects heat but produces heat in objects that it strikes.Full Answer >