INFARED

Infrared was discovered in 1800 by astronomer Sir William Herschel, who discovered a type of invisible radiation in the spectrum lower in energy than red light, by means of its effect on a thermometer.

Infrared radiation is electromagnetic radiation with longer wavelengths than those of visible light, and is therefore invisible to the human eye. It is sometimes called infrared light.

We are immersed in infrared radiation everyday. It is nothing more than heat. On the other hand, you certainly would not want to place your hand on a hot stove, in which case IR radiation would be dangerous. All objects that are not at absolute zero emit infrared radiation

Infrared light is a small part of the light spectrum. In order to understand night vision, it is important to understand something about light. The amount of energy in a light wave is related to its wavelength: Shorter wavelengths have higher energy. Of visible light, violet has the most energy, and red has the least.

INFARED EVERYDAY USES

• Lamps
• Heat
• Sensor
• Some telescopes
• Thermal scopes

MY SOUCRES WERE GOOGLE IMAGES, STMARY, HUNKER

Cool facts
Another interesting fact about infrared light is that it can travel through thick smoke, dust or fog, and even some materials which helps when a fire happens in a building. Firemen and the armed forces use this to find certain things.

THANKS FOR WATCHIN

• https://science.nasa.gov/ems/07_infraredwaves
• Live science
• Caltech