Radiation is the emission (sending out) of energy from any source. There are many types of radiation. Ultraviolet (UV) radiation is a form of electromagnetic radiation. The main source of UV radiation (rays) is the sun, although it can also come from man-made sources such as tanning beds and welding torches.Radiation exists across a spectrum from very high-energy (high-frequency) radiation â like x-rays and gamma rays â to very low-energy (low-frequency) radiation â like radio waves.he main source of UV radiation (rays) is the sun, although it can also come from man-made sources such as tanning beds and welding torches. Radiation exists across a spectrum from very high-energy (high-frequency) radiation â like x-rays and gamma rays â to very low-energy (low-frequency) radiation â like radio waves.
By Heidi, White is a simple, clean and crisp color with many different varieties: off-white, eggshell, bright white, ivory, cream, ecruâ¦wait, whatâs ecru? Ecru is the term often used by fine stationery printers to describe ivory or cream colored paper.
â¢ Categorized under Objects | Difference Between Ivory and Ecru. Ivory vs Ecru. Ivory as a colour is mostly defined as a âcreamy whiteâ. The color of ivory has a very slight tint of yellow. Ecru is described as the shade with a greyish light yellow or light grey with tinges of brownish. It got its name from the ivory, which is the material out of which the teeth and tusks of animals (most notably the elephants and walruses) are made.