Exam Review Hour 4

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Edward Acheson Goodrich

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Edward Goodrich Acheson

 Edward Goodrich Acheson was born March 9^th 1856 Washington, Pennsylvania. He was an American chemist. He was the inventor of the Acheson process, which is used to make silicon carbide that is still used today. He started working for Thomas Edison September 12^th 1880. Acheson experimented on making a conducting carbon that Edison could use in his electric light bulbs. Acheson attended the Bellefonte academy for three years (1870-1872) this being the totality of his formal education. Acheson began his career as a surveying assistant for the Pittsburgh southern railroad. In 1844, Acheson left Edison and became supervisor at a plant competing to manufacture electric lamps. He began working on the development of methods to produce artificial diamond in an electric furnace. After heating a mixture of clay and coke in an iron bowl with a carbon arc light, he found shiny, hexagonal crystals (silicon carbide) attached to the carbon electrode. He called it Carborundum. In 1891 he built an electricity plant in Port Huron at the suggestion of Edison and used electricity to experiment with Carborundum. On February 28, 1893, he received a patent on this highly effective abrasive although a 1900 decision gave “priority broadly” to the electric smelting of aluminum company “for reducing ores and other substances by the incandescent method”. Acheson received 70 patents relating to abrasives, graphite products, reduction of oxides, and refractories. Later, while studying the effects of high temperature on Carborundum, he found that the silicon vaporizes at about 4,150° C (7,500° F), leaving behind graphitic carbon. He died July 6, 1931, in New York City.

Work cited

"Edward Acheson Goodrich." Edward Acheson Goodrich. <http://en.wikipedia.org/wiki/Edward_Goodrich_Acheson>.

My Six subscriptions

My six subscriptions are: 1. Online a blog 2.Monroe evening news 3.popular science 4.cnn.com 5.the New York Times 6.The poke-community forums

Reflection

The deputy of my school came into our classroom one day and talked to us about online safety. After he left I realized that I need to change my passwords more frequently. I use to use the same password for every account to but I've changed my methods. Also way to much cyber bullying happens and no one does anything about it. Thanks to the information that I learned in class I use the web allot safer.

Id Theft Don't let this happen to you!

By Mightydialga98 | View this Toon at ToonDoo | Create your own Toon

Christmas Break Over my Christmas break I got an iPhone 4-s and many other games and books. I enjoyed not waking up at six every morning and I slept in till nine. I finished reading the book in about four days’ time. My grandma also visited for the holidays. We had a big feast. That was my Christmas break.

This is my blog. This blog is about computers and many other things.