@cute_fox1234
How about a 5 day bullet match?
How about a 5 day bullet match?
@A_Dragon_Riding_King said in #3:
> I was arguing with a friend over whether or not a compressed/coiled spring weighs more than a relaxed one. He is skeptical. Can someone please provide experimental proof of this (or a source of said proof). I could only find mathematical proof, and he prefers experimental over mathematical. The math is enough for me, but he wants something more tangible. Is there a study you know of that has tested this? Thanks, ADRK
Isn't this like saying if you crouch down on bathroom scales you weigh more they weigh the same , surely? xxx
> I was arguing with a friend over whether or not a compressed/coiled spring weighs more than a relaxed one. He is skeptical. Can someone please provide experimental proof of this (or a source of said proof). I could only find mathematical proof, and he prefers experimental over mathematical. The math is enough for me, but he wants something more tangible. Is there a study you know of that has tested this? Thanks, ADRK
Isn't this like saying if you crouch down on bathroom scales you weigh more they weigh the same , surely? xxx
1. If you travel at the speed of light through space, after a loooooooooong time, you would see the identical copy of yourself.
2. If you travel to the singularity of a black hole, you are actually traveling to your future, which is physically impossible.
2. If you travel to the singularity of a black hole, you are actually traveling to your future, which is physically impossible.
Is the universe infinite?
My costume is an...ANGEL
EDIT: This was written in response to #3 BEFORE I noticed #4. As usual, @Dukedog was FASTER. He found my response even before I did. Drat. Those Duke dudes ARE smart.
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@A_Dragon_Riding_King , here is my cursory attempt at a simple, Sophist explanation, which tails off with something of a practical demonstration.
E = m(c^2)
Therefore m = E / (c^2).
Therefore, when we expend energy to compress or expand a spring (from its equilibrium position), we increase its stored energy content, and its mass increases equivalently (albeit infinitesimally), since, as the equation shows, mass and energy are equivalent, linked by a (rather large) conversion factor (namely, c^2), where c is, of course, the speed of light measured in whatever sensible units we care to use. (That choice of units will influence the sort of energy units that result from the calculation, of course).
But let's take this a bit farther.
When we are stressed -- when life is pushing and pulling at us -- what happens?
The stress causes us to eat more. We begin hunting for pie. Perhaps the Halloween candy finds its way, at least in part, into our own bellies and not into the gift bowl.
And ... our mass increases.
See? Sophists have an answer for everything. Even when the answer is likely to be quite incorrect. Like this post.
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@A_Dragon_Riding_King , here is my cursory attempt at a simple, Sophist explanation, which tails off with something of a practical demonstration.
E = m(c^2)
Therefore m = E / (c^2).
Therefore, when we expend energy to compress or expand a spring (from its equilibrium position), we increase its stored energy content, and its mass increases equivalently (albeit infinitesimally), since, as the equation shows, mass and energy are equivalent, linked by a (rather large) conversion factor (namely, c^2), where c is, of course, the speed of light measured in whatever sensible units we care to use. (That choice of units will influence the sort of energy units that result from the calculation, of course).
But let's take this a bit farther.
When we are stressed -- when life is pushing and pulling at us -- what happens?
The stress causes us to eat more. We begin hunting for pie. Perhaps the Halloween candy finds its way, at least in part, into our own bellies and not into the gift bowl.
And ... our mass increases.
See? Sophists have an answer for everything. Even when the answer is likely to be quite incorrect. Like this post.
@Dukedog instructions unclear, I dropped two friends on their heads, yet they don't weigh more.
@Noflaps thanks for the explanation.
I'm wondering, if putting a human under stress increases their mass, then putting a spring under stress should surely cause it to eat more, right?
Ahah! A spring under stress has more mass, yet I've never seen a spring eat. Maybe this is why my friend is skeptical: he's never seen a spring eat either.
Any thoughts on how to conduct an experiment on this hypothesis?
@Noflaps thanks for the explanation.
I'm wondering, if putting a human under stress increases their mass, then putting a spring under stress should surely cause it to eat more, right?
Ahah! A spring under stress has more mass, yet I've never seen a spring eat. Maybe this is why my friend is skeptical: he's never seen a spring eat either.
Any thoughts on how to conduct an experiment on this hypothesis?
@A_Dragon_Riding_King , my only remaining thought is this: every spring I get on the scale and find that I've eaten too much over the winter.
Come to think of it, by spring my hair looks a bit like Einstein's too.
I arrive at a new conjecture: spring is a time for diets and haircuts!
See? Studying physics and its history pays off, eventually.
Come to think of it, by spring my hair looks a bit like Einstein's too.
I arrive at a new conjecture: spring is a time for diets and haircuts!
See? Studying physics and its history pays off, eventually.
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i think chess should be an olympic sport.
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