Talk:Electromagnetism

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Animation of lightning at top of page[edit]

Is having a distracting animation of lightning at the top of this page appropriate for electromagnetism? that animation would be better on the lighting article and certainly not at the top of any page. — Preceding unsigned comment added by 124.176.51.109 (talk) 07:06, 13 December 2012 (UTC)

Agreed. I've cut the two images entirely; I don't think the reader really benefits in their understanding of electromagnetism by being shown what a magnet and some lightning look like. --McGeddon (talk) 17:58, 20 February 2013 (UTC)

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This article, being a gateway, should have some illustrations. I agree that the lightning bolt animation is very distracting, and a image of a bar magnet doing notiong is of no value whatever. I kind of liked the idea of a static lightning bolt, but I'm not sure what its point is relative to electromagnetism. Given that, are there illustrations that would be useful, e.g. a photo of "lines of force" around both a bar magnet and an electromagnet made with iron filings (the point being that electric current makes "magnetism", and this is the same "stuff" as a bar-magnet's "magnetism"), and an equivalent electrostatics photo-image? (Good luck creating that one!) An electromagnet hanging by thin wires in a gravitational field (like a pendulum) and being pulled sideways by another electromagnet? (Easy to do). Ditto for a tinfoil-covered styrofoam ball being repelled by a charged plate? (Not so easy; this one I found as a problem in a physics text in a chapter on the electric field -- to calculate the angle from vertical; cf Sears and Zemanski 1964:564 problem 25-11, also p. 538 problem 24-4). As a kid I learned about "magnetism" from iron-filing making lines of force, and the experience that two magnets either repel or attract. Electrostatics I learned from charged balloons repelling or attracting, and scuffing my feet to make sparks (and to light up a neon light). That they are equivalent "stuff" in different forms is not a trivial factoid -- what you'd need to illustrate the idea is a triboelectrically-charged leaf-electroscope hooked to a Leyden jar that, when discharged through a coil of wire, moves a compass-needle. Thoughts? BillWvbailey (talk) 15:39, 21 February 2013 (UTC)

0 / 10[edit]

Intro fails to clearly describe what the relationship between electricity and magnetism is.

Article fails to clearly describe how much magnetic force is generated from a known quantity of electricity. — Preceding unsigned comment added by 49.181.91.233 (talk) 11:39, 27 September 2013 (UTC)

Inventors[edit]

I was wondering since people like Tesla and troy reed made electro-magnetic vehicles, and I did recently to add a small section on its historical accuracy. TBh, there are a few dozen inventers. Electro-magnetic car inventors are actually in yildiz, troy reed, wasif kahloon, tesla are a few of them. They work with plasma or a highly advanced form of hho (a battery system) with electromagnetic induction motors even. — Preceding unsigned comment added by 69.255.25.193 (talk) 20:55, 6 July 2014 (UTC)

Unraveling a design problem[edit]

One of the design's problems has been antennas in the circuits. However, a team of researchers in university of Cambridge have invented a new way and is to integrate the antenna on the chip. last frontier of semiconductor design would be a massive leap forward for wireless communications.

Read more here:

http://phys.org/news/2015-04-electromagnetism-enable-antennas-chip.html?utm_source=nwletter&utm_medium=email&utm_content=splt-item&utm_campaign=daily-nwletter


MansourJE (talk) 12:40, 10 April 2015 (UTC)