How a light bulb works The incandescent light bulb, just as everyone knows, was created by the famous Thomas Edison. In fact, just like any other inventions, it underwent a series of developments until its peak in today’s world. Even though today’s modern light systems are considered relatively more advanced in comparison to old days, nevertheless it still undergoes the same concept. The light bulb, surprisingly works in a very simple manner. It basically uses heat caused by an electric current, which then causes the filament in the incandescent bulb to heat up to an extent of glowing. In addition, it is important to preserve a vacuumed atmosphere in the bulb, since after thorough researching, it was found that the filament in the bulb lasts much longer when it is in contact with absolutely nothing, also known as vacuum. Camil Boulos resources: http://en.wikipedia.org/wiki/Light_bulb http://www.pa.msu.edu/sciencet/ask_st/061792.html Why the Light bulb was Important While the first electric light was made in 1800 by Humphrey Davy, it was not until 1879 when Thomas Edison discovered that a carbon filament in an oxygen-free bulb could produce light for up to 40 hours, that the practical and individual use of electric light became a possibility. Edison eventually went on to improve on his design, creating a bulb that could burn for over 1500 hours. The incandescent light bulb was one of Thomas Edison’s greatest achievements not because it provided another form of light, but because he was able to provide that light to people in a way that was practical, safe, economical, and reliable. While at Menlo Park, Edison was quoted as saying, “We will make electricity so cheap that only the rich will be able to afford candles”. This quote shows how the light bulb helped to change the lives of everyone rather than just a select few, as most great inventions do. Brad Ham
Reference: en.wikipedia.org/wiki/Thomas_Edisonwww.enchantedlearning.com/inventors/edison/lightbulb.shtml
Post an account of what you consider to be Edison's most important inventions (at least two) with a description of each and your group's view of why they were important.