Glass!! Part 2

Glass is an Amorphous Solid. Enough said.

Glass!

Glass is opaque because the electrons are very tightly packed and photons of a visible light wavelength (400-700nm) don't carry enough energy to cause an electron to "jump" to a different energy level. An "Energy Gap" is the difference between certain energy levels. So because the photon doesn't have enough energy to affect the electron, it isn't absorbed and instead passes straight through the glass! Letting the "light" in! Harmful UV rays are kept out, don't worry. Adam King 21/03/12

Pink Light

We do not see pink light as it doesn't naturally exist - confused??
Pink light has no place on the Electromagnetic Spectrum but our eyes are clever, very clever and they use red and blue light to make.......PINK. If you were to roll visible light around a wheel then red and blue would end up touching each other - this is where the pink magic happens......
The wavelengths that we struggle to see are "made" into pink via combining red and blue light.

Adam King

20/03/12