Teal & White Ribbon: Cervical Cancer. Rainbow Ribbon: Adrenocortical carcinoma, Gay Pride, Same Sex Marriage. Black & Pink Ribbon: Loss of a Sister, Loss of a female child, mourning a sister, mourning a daughter. Black & Blue Ribbon: Loss of a Brother, Loss of a male child, mourning a brother, mourning a son.
Electromagnetic spectrum refers to the full range of all frequencies of electromagnetic radiation and also to the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. Devices used to measure an electromagnetic spectrum are called spectrograph or spectrometer.
EM Spectrum. The electromagnetic spectrum ranges from the shorter wavelengths (including gamma and x-rays) to the longer wavelengths (including microwaves and broadcast radio waves). There are several regions of the electromagnetic spectrum which are useful for remote sensing. Visible Spectrum. The light which our eyes can detect forms the visible spectrum. It is important to note how small a portion of the electromagnetic spectrum is represented by the visible region.