Friday November 7th: GENERATION AND SENSING OF MAGNETIC FIELDS (Coil Gun Demo)

October 20, 2014

Coil GunGENERATION AND SENSING OF MAGNETIC FIELDS
(INCLUDES DEMONSTRATION OF A COIL GUN)

—  In 1820, HANS CHRISTIAN OERSTED discovered that an electric current
had an effect on the needle of a magnetic compass.

—  We reenact the Oersted experiment, which opened the entire field of
ELECTROMAGNETISM.

—  See with your own eyes that magnetic fields can PENETRATE SOLID WALLS!

—  We show how to generate magnetic fields with the help of AIR
SOLENOIDS and of iron-core ELECTROMAGNETS.

—  The main event will be the demonstration of a COIL GUN which shoots
pieces of steel coat hangers. The energy powering the gun is stored in
a 5000 microfarad electrolytic capacitor.

—  See how magnetic fields can be detected and measured with a HALL
PROBE.

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