Investigation into the physical properties of glass.

... Investigation into the physical properties of glass. Introduction 2 I have been set the task of investigating the physical properties of glass. Glass is very widely used (20 billion sq ft of glass is manufactured every year) but the methods used to manufacture it and the properties it possesses aren't as widely known. I aim to not just cover the properties of normal window glass but also to cover the different types of glass that exist, including bullet proof, safety, tempered, one-way bullet proof, optical lenses and radiation proof glass. The different properties I aim to investigate include young's modulus, impact resistance, transmittance, reflection and refraction. How glass is made 7, 12 In this section the sources agreed about most things, where they didn't agree it was due to simplification aimed at a younger audience. This is a very brief explanation of how glass is made because the task was to investigate the physical

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