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0. Please be Seated. 0. New from Lecture-Demonstration. Art Exhibit: Perception and Illusion: The Physics of Light and Optics Union Gallery, 1 st Floor, Stamp Student Union Continuing through February 4, 2005. Gallery hours: Monday-Saturday, 10:00 AM – 8:00 PM
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0 PleasebeSeated
0 New from Lecture-Demonstration Art Exhibit: Perception and Illusion: The Physics of Light and Optics Union Gallery, 1st Floor, Stamp Student Union Continuing through February 4, 2005 Gallery hours: Monday-Saturday, 10:00 AM – 8:00 PM Guided tours by Prof. Berg: each Wednesday at12:30 PM
New from Lecture-Demonstration 0 Now on a two-DVD set: The classic four-hour video collection: Demonstrations in Acoustics for only $20. Discount for direct cash Sales. Inquire in front. Dr. Richard E. Berg, demonstrating over 70 experiments, in 29 titled segments, covering vibrations, waves and sound.
0 NewPhysics is Phun e-mail list Go to the Physics is Phun web site and click on “mailing list” link near top of page
0 Electricity and Magnetism Physics is Phun January 2005
0 Topics: Electrostatics Magnetostatics Laws of Electromagnetism
0 Electrostatics
0 Pity the poor neutron;he thought he was a protonbut he wasn’t positive.
0 Siphon “Triboelectricity” Quantum mechanical tunneling
0 Charging by Induction
0 Polarization in the Atom Electric forces on polar molecule
0 Van de Graaff electrostatic generator:simulates lightningfrom cloud to ground
0 Lightning (1)
0 Lightning (2)
0 Lightning (3)
0 Lightning (4)
0 Lightning (5)
0 Lightning (6)
0 Lightning Rod Simulator Lightning striking the Empire State Building
0 Magnetostatics
0 Lodestone
0 Magnet and Magnetic Field
0 Broken Magnet
0 Relationsbetweenelectricity andmagnetism
0 Ampere’s Law: Electric currents create magnetic fields.
0 Lorentz Force: Charges moving in a magnetic field experience an electromagnetic force.
0 Faraday’s Law of Induction: A changing magnetic field creates an electric field.
0 Lenz’s Law: Induced electric currents act so as to oppose the motion that caused them.
0 Magnetsdroppedthroughtube
0 Magnetic Levitation
0 Train Levitation Yamanashi test line Maglev site in Japan Magnetic Levitation Trains Photographs compliments of: High Speed Rail (HSR), by Oliver Keating http://www.o-keating.com/hsr/
0 Maglev Train “Tracks” Train moving on Guideway at 500 mph The Yamanashi Guideway for the MLX01
0 Electromagnetic Can Crusher 1. Slow motion view 2. Diagram showing explanation a. current from capacitor creates magnetic field b. increasing magnetic field induces electric field c. electric field moves electrons around can d. electrons feel inward and separation forces e. can cut in two and pushed apart Slow motion of can crusher at Weslyan University Compliments of Vacek Miglus
0 Cyclotron Dee discharge
0 Cyclotron ion source
The EndSee you in March! 0 We are on the web at http://www.physics.umd.edu/lecdem/ Animated Gifs compliments of bellsnwhistles.com