Author name: Threeyzmonkeys

#195 How do fiber optic cables work?

I learned this today. A fiber optic cable works by sending information encoded in a beam of light. Different technologies send information in different ways. A telegraph and an old style telephone send signals with electric currents. A cell phone uses radio waves. A fiber optic cable sends signals using light. Fiber optic cables were […]

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#192 How does a pearl form?

I learned this today. A pearl forms in the shell of a mollusk when an irritant becomes trapped there and the mollusk covers it with a fluid that hardens. There are three different types of pearl. There are natural pearls, cultured pearls, and imitation pearls. I am not going to look at imitation pearls. Natural

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#186 What is vellum?

I learned this today. Vellum is a material for writing on that is made from prepared animal skin. The document on the front of this article is the Magna Carta. It is the document that tried to control King John of England and is one of the most famous documents in the UK. It was

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