Here's a breakdown of the electromagnetic spectrum from longest to shortest wavelength:

* Radio waves: Longest wavelengths, used for communication, broadcasting, and radar.

* Microwaves: Used for cooking, communication, and radar.

* Infrared radiation: Heat radiation, used for thermal imaging and remote sensing.

* Visible light: The only part of the electromagnetic spectrum that we can see.

* Ultraviolet radiation: Can cause sunburn and damage DNA, but also used in sterilizing equipment and detecting counterfeit money.

* X-rays: Used in medical imaging and security screening.

* Gamma rays: Shortest wavelengths, highly energetic, and can penetrate matter easily. They are used in medical treatments like radiation therapy and in scientific research.

Let me know if you'd like more information about any of these waves!