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Radiation is energy that travels and spreads out as it goes – the visible light that The image below shows where you might encounter each portion of the EM The focus of Lesson 2 will be upon the visible light region - the very narrow band of wavelengths located to the right of the infrared region and to the left of the ultraviolet region. Though electromagnetic waves exist in a vast range of wavelengths, our eyes are sensitive to only a very narrow band. 26 May 2018 During this lesson, the electromagnetic spectrum is explained and students learn that visible light makes up only a portion of this wide spectrum 20 Nov 2015 There are several regions of the electromagnetic spectrum which are useful for This radiation is just beyond the violet portion of the visible an entire chapter (Chapter 3) of the tutorial is dedicated to microwave sensing.Electromagnetic radiation is a type of energy that is commonly known as light. That is why we call this part of the electromagnetic spectrum visible light. Light The electromagnetic spectrum can be divided into several wavelength (frequency) regions, among which only a narrow band from about 400 to 700 nm is visible Not all light is in the visible spectrum, which is the light you can see. There are many kinds of electromagnetic waves that you can't see. Just look at the spectrum Properties of electromagnetic radiation and photons. in order to prevent the X-rays from penetrating anything other than the area of our body .. Next tutorial. 7 Jul 2014 16 Feb 2018 For most of history, visible light was the only known part of the electromagnetic spectrum. The ancient Greeks recognized that light traveled in