What is the magnetic field?

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The Tabletop Explainer is an intermittent educational vlog presenting answers to viewer questions, brief science lessons, and ideas for teachers and students. It is a feature of my blog "Tilts at Windmils" which can be found at http://www.davidcolarusso.com/blog/

Channel: Howto & Style
Uploaded: February 23, 2007 at 8:29 am
Author: dcolarusso

Length: 0:02:29
Rating: 4.58
Views: 73,524

Tags: tabletop explainer science physics demos experiments magnetic field lines

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Video Comments:
77GSlinger (Tuesday 18th of November 2008 09:25:11 AM)
So-called magnetic attraction is actually voidance. Check it out at 1:50. When the two opposite poles meet they void each other and their poles are extended to the extreme opposite ends of their newly combined magnetic fields. This demonstrates the proof of magnetic voidance and not magnetic attraction. Magnetism's only function is to repel and electricity is actually the attractive force. Academic explantions about magnetism are corrupted by this huge perceptional error. Walter Russell rules!
SmellsLikeAwesome7 (Wednesday 12th of November 2008 08:55:21 AM)
Good video but didn't help me =/ PLEASE PLEASE PLEASE WILL SOMEONE SEND ME A VIDEO ABOOUT HOW THE MAGNETIC FIELD AFFECTS THE DIRECTION THAT A COMPASS POINTS i will be really grateful if someone did but it has to be by tonight xx
colon98765 (Wednesday 12th of November 2008 06:50:51 PM)
the magnetic field of the earth exerts a force on the compass needle (which is made of a metal that is magnetic) this force exerts a torque on the needle which causes it to spin in the direction of the magnetic field once it's in line with the field (that's when the needle is pointing directly at the earth's magnetic south pole, which is atually the geographic north pole) it will stay there unless if there is a stronger field thats affecting the compass.
V8decimator (Monday 10th of November 2008 10:30:46 PM)
magnetic field lines don't start or stop.
canadamonster (Sunday 26th of October 2008 04:34:41 PM)
why do magnets attract and repel ?
max345612 (Wednesday 5th of November 2008 04:08:38 PM)
it just told you!!!
DonHoraldo (Friday 17th of October 2008 11:15:49 PM)
a bit over simplified.
BenZeneProject (Friday 10th of October 2008 01:16:23 AM)
excellent. I even like the music. Go replace Bill Nye. imu, magnets have a direct bipolar effect on the etheric fluid, unlike other substances which exhibit monopole, paramagnetic or radionic properties. Thus the magnets' ability to align itself to any other magnetic field creates never ending questions. gravity==majority monopole material? magnetism==majority dipole material? I'm not sure if somebody else said this before me or not, but it seems axiomatic. magnets seem to be special mass.
dreamdimensions (Saturday 4th of October 2008 04:35:30 PM)
but what is the mechanism of cycling the electric field? only I know ;D
drhoecker (Tuesday 28th of October 2008 11:21:23 AM)
and me.i built ufo drive.works