Electromagnetic Spectrum

Infrared radiation is just below the visible spectrum and is often felt as heat.

Because of their long wavelengths, they can easily pass through obstacles like buildings and hills. 2. Microwaves electromagnetic spectrum

This is the only part of the spectrum humans can see with the naked eye. It spans from roughly Photography, fiber optics, and natural vision. Infrared radiation is just below the visible spectrum

Remote controls, thermal imaging cameras, and fiber optic cables. and natural vision. Remote controls