Physics

Recent Answers

2012-02-09 Electronics - Capacitors:

A capacitor is merely two metal plates separated by a small distance, sometimes with an insulator in between the two plates.  These plates are not touching so they cannot conduct electric current.    However

2012-02-09 Astrophysics - speed of light:

You're invoking impossibility, traveling at the speed of light when you have mass and that would take an infinite amount of energy.  So the question is just wrong to start with.  If you could, as some

2012-02-09 Physics - Rail gun mania:

Much more than twice, actually, and rail guns are reeeally old-hat.  They were invented in 1918, almost a hundred years ago.  I mean, most of the real research in them was done in the 80's as part of Reagan's

2012-02-08 Electronics - core saturation in impedance bonds:

See:    http://en.wikipedia.org/wiki/Magnetic_field    http://en.wikipedia.org/wiki/Magnetic_reluctance    http://www.calculator.org/property.aspx?name=magnetomotive+force    And so on.  Since I don't

2012-02-07 Electronics - magnetic motors:

This is in the field of witchcraft.  Most of the ones I have seen are pure hype and scam. They have no basis of correct theory or practice. If you have found one that has some promise let me know as I