* Electromagnetic Spectrum: Light is a form of electromagnetic radiation, which encompasses a vast range of wavelengths, from extremely long radio waves to incredibly short gamma rays.
* Visible Light: Our eyes are designed to detect only a very narrow band of this spectrum, called visible light. This band spans wavelengths approximately from 380 nanometers (violet) to 750 nanometers (red).
* Beyond Visible: Wavelengths shorter than violet are called ultraviolet (UV), and wavelengths longer than red are called infrared (IR). These are invisible to the human eye, but we can detect them through other means, such as feeling heat from infrared radiation.
So, while light itself is not inherently visible or invisible, the portion of the electromagnetic spectrum that we perceive as light is indeed visible.
