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Claudio Saspinski

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34
Is the weight of the aircraft flying in the sky transferred to the ground?
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26
When a car accelerates relative to earth, why can't we say earth accelerates relative to car?
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22
Why are stars made from hydrogen and helium and not other elements?
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16
Trying to understand Newton's Second Law
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14
Why does glass, in spite of being amorphous, often break along very smooth surfaces?
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13
Why does all motion in a rigid body cease at once?
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12
How does rubbing soap on wet skin produce foam, and does it really enhance cleaning?
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11
Velocity is relative, which means acceleration is relative, which further implies that forces are relative as well
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11
If I pull a metal bar for long enough with a constant small force, will it eventually break?
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10
Why do dark objects absorb visible light but only emit infrared radiation?
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9
Where does the curvature of space happen?
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8
Why is the stress on a body not a vector?
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8
Why does mass bend the temporal dimension more than the spatial dimensions of spacetime?
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8
Does a slowed down version of small stone falling in water look the same as a big rock falling in real time?
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7
Is heat energy actually kinetic energy?
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7
General relativity when can we approximate to Newtonian gravity?
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7
What is the origin of the inertia?
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7
What is the centripetal force when a bar rotates about its center of mass?
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6
Does Zeno's Paradox hold the simplest key to explain the widely-held continuous spacetime belief in physics?
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6
Why do string instruments need hollow bodies?
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6
Does a volume stay constant when freely falling?
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6
What actually is white light?
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6
Is it possible to know that an object is at a certain location without observing any of its interactions?
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6
Why does acceleration in special relativity give rise to general relativity (and thus gravity)?
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5
Why does time 'change' when gravity increases?
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5
Work contradiction?
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5
Why do bullets shoot through water but not through sand?
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5
Proof of Newton's Third Law
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5
How do we know that forces "add" like vectors?
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5
Observing light from a falling elevator
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