Electricity

Feynman: Electricity FUN TO IMAGINE 5 | Jabar Post Indonesia

Feynman: Electricity FUN TO IMAGINE 5 | Jabar Post Indonesia – This time JabarPost.Net will discuss about Electricity.

The following is Feynman: Electricity FUN TO IMAGINE 5. And for those of you who want to find a similar explanation, you can search in the Electricity category

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Feynman: Electricity FUN TO IMAGINE 5 | Jabar Post Indonesia

Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. In early days, electricity was considered as being unrelated to magnetism. Later on, many experimental results and the development of Maxwell’s equations indicated that both electricity and magnetism are from a single phenomenon: electromagnetism. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others.

The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field.

When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb’s law. Thus, if that charge were to move, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of positive charge from an arbitrarily chosen reference point to that point without any acceleration and is typically measured in volts.

Electricity is at the heart of many modern technologies, being used for:

electric power where electric current is used to energise equipment;
electronics which deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies.
Electrical phenomena have been studied since antiquity, though progress in theoretical understanding remained slow until the seventeenth and eighteenth centuries. Even then, practical applications for electricity were few, and it would not be until the late nineteenth century that electrical engineers were able to put it to industrial and residential use. The rapid expansion in electrical technology at this time transformed industry and society, becoming a driving force for the Second Industrial Revolution. Electricity’s extraordinary versatility means it can be put to an almost limitless set of applications which include transport, heating, lighting, communications, and computation. Electrical power is now the backbone of modern industrial society.[1]



Now! High quality version at https://www.youtube.com/watch?v=P1ww1IXRfTA
Physicist Richard Feynman visits the dentist and wonders about the amazing phenomenon of electricity… From the BBC TV series ‘Fun to Imagine'(1983). You can now watch higher quality versions of some of these episodes at www.bbc.co.uk/archive/feynman/

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  1. we do understand the shame that we can use the energy of this planet in so many rudimentary ways so that oil and conventional fuel is not needed but this is has only 2k views and gangnam style 1 billion imagine our faith?!

  2. one may feel that…. spending for 16 years for graduation is a bad idea after listening to the way how he explains. Spending an hour will change ones whole life. Amazing teacher…. culminated human being from the all the fronts of his character

  3. I long knew the name but just recently discovered this guy. I keep expecting him to yell at his wife in the next room to bring him a pastrami sandwich. What great podcast Joe Rogan could have had with this joker.

  4. Feynman's brain was so complex, yet he could spin a story that left one thinking, "but I never thought about it that way" . I suppose this has been answered: If alike particles, protons for instance repel each other how come the concept of the atom has them huddled together in the centre of the atom. Are they herded together by the electron field that surrounds them? I am but a layman in the physics realm.

  5. Just like Einstein, Feynman made himself the Jewish badass center of his own little universe, simply by not refering to others, and by telling fictitious anecdotes. He was the "jewel of the physicists". I don't fall for it. Who did the hard QED mathematical development anyway?
    It was Freeman Dyson, see http://people.du.ac.in/~sm/smweb/REVIEWS/QED.pdf

    Someting else, Mr. Feynman's lectures (see http://www.feynmanlectures.caltech.edu/II_13.html ) describe that the magnetostatic and stationary current density j has no divergence: "The requirement that ∇⋅j=0 means that we may only have charges which flow in paths that close back on themselves." Now imagine you are an explorer of Magnetostatic forces, and you need to induce a stationary current (that is not changing in time) that runs in a 'closed on itself' circuit, according to Feynman's definition. How would you do this? Feynman: "the circuit may contains generators or batteries". Well, "surely you must be Joking, Mr. Feynman", especially the 'battery' part, since batteries obviously do not "close" the circuit, we have d(rho)/dt <> 0 in a battery. What a joke it is, to measure a magnetostatic force acting on a magnetostatic circuit that contains a generator as well! These oversimplications and unrealistic thought experiments had such "splendid" consequences for physics, for classical electrodynamics in particular (the Lorentz force law of classical electrodynamics is inconsistent with classical mechanics), for QED, for relativity theory! The current physics paradigm is great for dumbed down goys and badass Jewish physicists with showmanship, "my admiration is boundless".

  6. He was perhaps the most insistently democratic genius I have ever read about. His chapter "Alfred Nobel's other mistake" is something of a critique of the idea of being famous for being a celebrity. Hans Bethe and Niels Bohr, men who were rightly distinguished in science when Feynman was merely smart enough to be in the Manhattan Project, sought him out because not even their acknowledged brilliance held him back from arguing with them, and they were wise enough to know that occasionally they overlooked flaws in their newest ideas!

  7. What I love about Richard most, is that while he knows a LOT about how fundamental stuff works, he wonders about what he tells just like his audience, and can easaly admit that he knows nothing about nature.

  8. Many comments are about I wish I had a teacher like this in high school . Well, you people should understand that Feynman knows when he shoot this video that he is talking with the general public so he is making it so simple so that the public can understand it but is this how science really looks like ? The answer is NO, Feynman's scientific specialization is a very complex branch of science and science in general is hard. He just knows that he has to make his videos compelling to the public as if he is explaining something to childrens.

  9. As much as he likes to tear at philosophers, I find that Feynman himself, has been the philosopher that has had more or an impact on my life than any other. Perhaps that because, as he likes to say, philosophers at pedantic. In fact it is Feynman who inspired me to study philosophy in university, because important to him, and in my opinion the reason he is such a famous educator, is how people think and why they think the way they do. With a particular fascination with how they think about the world, he uses physics to analyze this and he does so with perfection.

  10. Just like atoms make up us and we cannot understand them, maybe we are making up something so much bigger, and it cannot understand us. We would be quantum mechanics to that thing just like quantum mechanics is to us.

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