Electromagnetism and Magnetism
Richard Feynman developed an approach to Quantum Mechanics governed by a principle of least action. He also corrected inaccuracies in early formulations of Quantum Electrodynamics. Richard Feynman also did many other remarkable things:
· He was recruited to work on the U.S. Atomic Bomb project. He was the youngest group leader in the theoretical division. With some help, “he devised the formula for predicting the energy yield of a nuclear explosive.” He helped create the atomic bomb.
· Resolved some mystery results the old Quantum Electrodynamics theory produced.
· Created simple diagrams that “that are easily visualized graphic analogues of the complicated mathematical expressions needed to describe the behavior of systems of interacting particles. This work greatly simplified some of the calculations used to observe and predict such interactions.”
· Provided a quantum-mechanical explanation for the theory of super fluidity
· With a fellow physicist, he devised a theory that accounted for most of the phenomena associated with the weak force, which is the force at work in radioactive decay.
- Every electric current has a magnetic field surrounding it.
- Alternating currents have fluctuating magnetic fields.
- Fluctuating magnetic fields cause currents to flow in conductors placed within them, which is also known as Faraday's Law.
When the device is used as a motor, a current is passed through the coil. The interaction of the magnetic field with the current causes the coil to spin. To use the device as a generator, the coil can be spun, inducing a current in the coil."
So why does this all matter? How does Electromagnetic Induction even affect our lives?
Thanks to Electromagnetic Induction, we can toast our breads to a perfect crispiness.
We boil water, heat up food, cook pasta, you name it, it can be cooked on a stovetop.
With ovens, we bake cakes and other delicious desserts. We cook lasagna and other frozen or homemade goods.
Washers and Dryers
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Brain, Marshall. "How Television Works" 26 November 2006. HowStuffWorks.com. <http://electronics.howstuffworks.com/tv.htm> 02 April 2013.
"Applications of Electromagnetic Induction." Applications of Electromagnetic Induction. Boston University, 22 July 1999. Web. 07 Apr. 2013. <http://physics.bu.edu/~duffy/PY106/Electricgenerators.html>.
Brain, Marshall, Jeff Tyson and Julia Layton. "How Cell Phones Work" 14 November 2000. HowStuffWorks.com. <http://electronics.howstuffworks.com/cell-phone.htm> 08 April 2013.
"What Are the Application of Electromagnetic Induction?" WikiAnswers. Answers, n.d. Web. 08 Apr. 2013. <http://wiki.answers.com/Q/What_are_the_application_of_electromagnetic_induction>.