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seen Jun 8 at 3:42

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Jun
8
revised Why my simple electromagnetic experiment does not work?
added 81 characters in body
Jun
8
comment Why my simple electromagnetic experiment does not work?
@rob Do you mean the weight of the magnet? The magnet is NOT the whole middle piece. The 90% of the "middle piece" is plastic. The magnets are 1" diameter x .5" thick only
Jun
7
accepted Is it right to cut a slot on some material before bending?
Jun
7
accepted Does two Neodymium magnets stick together twice the power?
Jun
7
comment Why my simple electromagnetic experiment does not work?
I have considered the acceleration problem, that why I put the initial position of the middle piece to swing to ONE side. The magnetic force have a 1/distance^2 relation. I would expect to see at least one big move. Isn't it?
Jun
7
comment Why my simple electromagnetic experiment does not work?
The circuitry is only a coil and resistors. I used a ohmmeter to measure the total resistance. The total resistance is valid.
Jun
7
revised Why my simple electromagnetic experiment does not work?
added 8 characters in body
Jun
7
revised Why my simple electromagnetic experiment does not work?
typo
Jun
7
asked Why my simple electromagnetic experiment does not work?
Apr
27
awarded  Popular Question
Apr
22
asked How to calculate force generated from a magnet coil to a magnet?
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22
asked Does two Neodymium magnets stick together twice the power?
Apr
9
answered Why Do Hurricane Balls Spin So Fast?
Nov
30
asked Why put something in the middle of the pan would prevent soup coming out during cooking?
Nov
6
comment How to check a worm and a worm gear fit?
No. Just one worm and one worm gear. How can I check that they can work together?
Nov
6
asked How to check a worm and a worm gear fit?
Nov
1
accepted Where I can find a torsional stiffness table for different types of stainless steels?