enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Iron filings - Wikipedia

    en.wikipedia.org/wiki/Iron_filings

    As the name suggests, iron filings can be obtained from metal working operations as the scrap material filed off larger iron and steel parts. [2] They are very often used in science demonstrations to show the direction of a magnetic field. Since iron is a ferromagnetic material, a magnetic field induces each particle to become a tiny bar magnet ...

  3. Coherer - Wikipedia

    en.wikipedia.org/wiki/Coherer

    There are several variations of what is known as the imperfect junction coherer. The principle of operation (microwelding) suggested above for the filings coherer may be less likely to apply to this type because there is no need for decohering. An iron and mercury variation on this device was used by Marconi for the first transatlantic radio ...

  4. Magnetic field - Wikipedia

    en.wikipedia.org/wiki/Magnetic_field

    The shape of the magnetic fields of a permanent magnet and an electromagnet are revealed by the orientation of iron filings sprinkled on pieces of paper A magnetic field (sometimes called B-field [ 1 ] ) is a physical field that describes the magnetic influence on moving electric charges , electric currents , [ 2 ] : ch1 [ 3 ] and magnetic ...

  5. History of classical field theory - Wikipedia

    en.wikipedia.org/wiki/History_of_classical_field...

    Iron filings used to show the magnetic field lines of a bar magnet. In the history of physics, the concept of fields had its origins in the 18th century in a mathematical formulation of Newton's law of universal gravitation, but it was seen as deficient as it implied action at a distance.

  6. Magnet - Wikipedia

    en.wikipedia.org/wiki/Magnet

    Iron filings that have oriented in the magnetic field produced by a bar magnet Detecting magnetic field with compass and with iron filings Main article: Magnetic field The magnetic flux density (also called magnetic B field or just magnetic field, usually denoted by B ) is a vector field .

  7. Spectral - Wikipedia

    en.wikipedia.org/wiki/Spectral

    The group takes shelter in an abandoned factory inhabited by another surviving Utah team member, Chen, and two Moldovan siblings; Sari and Bogdan, whose father died planting iron filings around it to protect them from the entities, known locally as "Aratare". The team establish radio contact with the airbase and set up a rendezvous for ...

  8. File:Magnet0873.png - Wikipedia

    en.wikipedia.org/wiki/File:Magnet0873.png

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  9. Category:Iron - Wikipedia

    en.wikipedia.org/wiki/Category:Iron

    Pages in category "Iron" The following 71 pages are in this category, out of 71 total. ... Iron cycle; Iron filings; Iron nanoparticle; List of countries by iron-ore ...