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Question
Sir, Can we re-create the magnetic field alone from a ray of light or an electro-magnetic wave?
I think you mean to say, can we make a magnetic field from just a ray of light (which IS an electromagnetic wave, by definition)?
I don't think so. I think it takes at least a bar of magnetized iron with a coil of wire around it, with electricity flowing through it; OR just move the bar of iron in and out (back and forth) through the coil of wire. The Earth and stars do it by rotation around a hot interior liquid, (or plasma in the case of stars)... generating what we call a dynamo. I think electrical generators do it by rotating an armature with wire coils inside a magnetized iron shell, or torus.
But just a beam of visible light (or radio, or heat, or UV, X-ray or gamma radiation)... any stream of photons no matter what their wavelength, just by itself, doesn't automatically create a magnetic field.
Tom
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Answers by Expert:
Tom Whiting
Expertise
Astronomy has been my hobby/pasttime for over 50 years. Currently own 3 telescopes, the largest of which is a 30 inch Newtonian truss Dob that is portable.I taught Astronomy/Meteorology at the University Level for 13 years before retiring in 1995. Being retired and home most of the time, I am able to answer all questions relatively quickly, unless it's a new moon weekend with good observing conditions. No astrology questions please, or questions about alleged UFO picture identifications.
Experience
Experience: Astronomy has been my hobby and study for over 50 years. We currently now own a 30 inch portable telescope (Updated - Pennsylvania`s largest portable telescope). It can be seen on our website at:http://www.velocity.net/~bwhiting and also attend several regional starparties during the year, and have been on 5 total solar eclipse expeditions.
Organizations: President, Erie County Mobile Observers Group for over 15 years.
Publications: Wrote the "Over Erie Skies" newspaper article in our local newspaper for 11 years (1975-86).
Education: Masters Degree- Taught at the University level for 13 years. Retired 20 years -USAF Pilot - KC-135 with 180 combat missions; Also Eagle Scout, Philmont staff 2 Yrs, Order of Arrow Lodge Chief, Ham Radio (inactive).
Awards: two discoveries: The mini-coathanger asterism in Ursa Minor (the little dipper) And the mini-ladle- another asterism in the bowl of Ursa Minor. Clients: Currently President of the ECMOG as mentioned above.
Education/Credentials
BS Metallurgical Engineering Grove City College, PAMaster's Degree, Gannon University, Erie, PA
Also retired USAF pilot, 20 years.
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