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S. McGrew

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48
How are overtones produced by plucking a string?
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42
Is force due to electric field instantaneous? If not then why?
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37
What happens when the drag force exceeds the weight of an object falling into earth?
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26
What is physically different about a moving vs still object in space?
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22
Is the photon pair generated from the electron-positron annihilation entangled?
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20
How exactly does artificial gravity work?
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12
Could you use a laser beam as a modulated carrier wave for radio signal?
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11
How would a fast-moving atom interact with a body?
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11
Can we see emission lines in stars?
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11
Superconductive magnet as a source of energy?
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11
How can iron be forged by a hand-powered hammer?
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10
Siphon water from washing machine into sink next to it
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9
Only sea water appears blue in color, why this is not happening in river water?
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8
Horizontals in a grid do not cast shadow while verticals do. Why is this?
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8
Why don't marbles naturally arrange themselves like a crystal?
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8
Physics of a punch
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8
Can light beams (e.g. from a laser) visibly interfere if they cross in mid-air?
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7
Why use gamma over alpha radiation?
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7
Why can't we see the satellites?
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6
Why conservation of momentum?
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6
Can you burn invisible jelly balls with a laser?
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6
Why don't electron-positron collisions release infinite energy?
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6
Why aren't spaceships (usually) torn apart
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5
Can a sound wave begin with rarefaction?
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5
How Does Gravitational force work on Light?
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5
How to exactly overlap two light rays?
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5
What does it mean that Gravity itself has mass which will in turn generate more gravity?
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5
what kind of information is shared between entangled particles
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5
Can the deflection of an electron beam create a Lorentz Force capable of propelling a spacecraft?
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