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Posted on 3/21/2009 10:40 PM By Steven McFadyen
American inventor Thomas Alva Edison was born in Milan, Ohio on February 11, 1847. He was the youngest of seven children and received little formal schooling. Most of his education happened at home under the care of his mother, Nancy.
Posted on 3/15/2009 8:08 PM By Steven McFadyen
The other day I was reading 'Night of the New Magicians' by Mary Pope Osborn with my son. The story is about a young boy and girl who travel back in time to the 1889 World's Fair in Paris to find four new magicians and learn their secrets. The new magicians turn out to be Alexander Graham Bell, Thomas Edison, Louis Pasteur and Gustave Eiffel and their secrets inspiration advice.
Posted on 3/1/2009 11:47 AM By Steven McFadyen
The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and again. While some colleagues prefer to remember formulas or factors, I prefer to resolve the problem step by step using basic principles. I thought it would be good to write how I do these calculations and hopefully it may prove useful to someone else.
Posted on 2/25/2009 3:19 AM By Steven McFadyen
The other day I was talking to a colleague who is a building services consultant. Despite regularly specifying dry-type/cast resin transformers he was unaware that many manufactures’ use aluminium for the windings; I think Siemens exclusively use aluminium and don’t offer copper anymore. To confirm this he promptly phoned Schneider Electric and was informed that they use aluminium (or copper on request).
Posted on 2/22/2009 8:22 PM By Steven McFadyen
Famed English chemist and physicist Michael Faraday was born on September 22, 1791, in Newington Butts, a suburb of Surrey just south of the London Bridge. His family was not very well off and could only afford to give Faraday a basic education. When he was 14, Faraday was apprenticed to a bookbinder. Much of his learning came from reading the books he was binding.
Posted on 2/18/2009 9:12 PM By Steven McFadyen
Electrical engineering is a field that covers a wide variety of sub-fields, including electricity and electronics. It is a field that goes back to the early days distributing electrical power. Today, it could cover basic electronics, or more advanced areas, such as control and signal processors, or even the diverse field of telecommunications.