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Posted: 12/25/2022 11:47:12 PM EDT
[#1]
First you have to define "in contact"
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Posted: 12/25/2022 11:49:14 PM EDT
[#2]
They don’t need to do any math to run into each other.
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Posted: 12/25/2022 11:49:17 PM EDT
[#3]
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Posted: 12/25/2022 11:50:15 PM EDT
[#4]
Quoted: Say you have two objects in space, let's say perfect glass spheres with no surface irregularities down to the atomic level. They are both perfectly uniform spheres with no microscopic protrusions of any kind. Now let's say they are moving together. At some point, they will touch. Or will they? As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Obviously it's possible because objects come into contact all the time. You can clap your hands and see, feel and hear the results. But if distance is infinitely divisible, how can it ever equal zero so that contact can occur? You are confusing two issues. One is an asymptote. A mathematical issue. They are approaching for infinity but never touch. (Because the rate of closure is changing for infinity) The other is rate of closure. Rate of closure will dictate when they touch. They are moving at each other at a constant speed. |
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Posted: 12/25/2022 11:51:20 PM EDT
[#5]
Whatever amount of time it took for them to go from 2m apart to 1m apart is the same amount of time it will take for them to go from 1m to contact. Quite as simple as that. Not sure why you want to keep slicing it into infinitely small amounts.
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Posted: 12/25/2022 11:51:25 PM EDT
[#6]
Nothing ever contacts anything else. It's all make-believe electrons repulsing each other and the stuff you think is really the thing that the electrons surround isn't real either.
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Posted: 12/25/2022 11:51:54 PM EDT
[#7]
As they get nearer, they will accelerate toward each other too, due to gravity and van der waals force.
Look up Zeno’s paradox. |
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Posted: 12/25/2022 11:52:30 PM EDT
[#8]
Quoted: Say you have two objects in space, let's say perfect glass spheres with no surface irregularities down to the atomic level. They are both perfectly uniform spheres with no microscopic protrusions of any kind. Now let's say they are moving together. At some point, they will touch. Or will they? As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Obviously it's possible because objects come into contact all the time. You can clap your hands and see, feel and hear the results. But if distance is infinitely divisible, how can it ever equal zero so that contact can occur? |
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Posted: 12/25/2022 11:53:04 PM EDT
[#9]
Numbers being infinitely divisible by half has no bearing on the closing velocity (distance/time) of the spheres.
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Posted: 12/25/2022 11:54:20 PM EDT
[#10]
Each object has gravitational pull based on their mass.
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Posted: 12/25/2022 11:54:31 PM EDT
[#11]
Quote HistoryQuoted: You are confusing two issues. One is an asymptote. A mathematical issue. They are approaching for infinity but never touch. (Because the rate of closure is changing for infinity) The other is rate of closure. Rate of closure will dictate when they touch. They are moving at each other at a constant speed. I knew that and went to community college. Lol |
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Posted: 12/25/2022 11:54:31 PM EDT
[#12]
Well, nothing is actually "touching". The fields of each atom interact with other atom fields, but the atoms never touch. Everything that is so called solid, is not.
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Posted: 12/25/2022 11:56:16 PM EDT
[#13]
Quoted: Say you have two objects in space, let's say perfect glass spheres with no surface irregularities down to the atomic level. They are both perfectly uniform spheres with no microscopic protrusions of any kind. Now let's say they are moving together. At some point, they will touch. Or will they? As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Obviously it's possible because objects come into contact all the time. You can clap your hands and see, feel and hear the results. But if distance is infinitely divisible, how can it ever equal zero so that contact can occur? So......... do the spheres each have their own treadmill ?? . |
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Posted: 12/26/2022 12:02:25 AM EDT
[#14]
Quoted: How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Obviously it's possible because objects come into contact all the time. You can clap your hands and see, feel and hear the results. But if distance is infinitely divisible, how can it ever equal zero so that contact can occur? Not necessarily infinitely divisible. Planck Length is the limit to how small you can go.  Can Space Be Infinitely Divided? |
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Posted: 12/26/2022 12:05:08 AM EDT
[#15]
These kinds of stupid questions are the result of pot. Fucking pot heads.
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Posted: 12/26/2022 12:05:52 AM EDT
[#16]
If they're approaching each other at, say, one m/s, then the distance between them is one meter less, every second. Eventually they contact each other.
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Posted: 12/26/2022 12:14:29 AM EDT
[#17]
what if one of those spheres was a black hole?
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Posted: 12/26/2022 12:14:56 AM EDT
[#18]
There are hundreds of videos of cats that can explain it to you. That cat sees an object on a counter. The cat pushes the object off the counter. The cat watches the object fall and hit the floor. The cat repeats the experiment. The cats have never found an object that didn't fall until it came in contact with a body below it.
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Posted: 12/26/2022 12:15:01 AM EDT
[#19]
Planck time.
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Posted: 12/26/2022 12:15:37 AM EDT
[#20]
Quote HistoryQuoted: The other is rate of closure. Rate of closure will dictate when they touch. They are moving at each other at a constant speed. They are not moving towards each at constant speed. There is an attractive force between them, determined by their mass and distance from each other, just like the earth and the moon. This is the famous equation derived by Newton:  "Sir Isaac Newton’s universal law of gravitation (F=Gmm/r2) is an equation representing the attractive force (F) of two masses (m) separated at distance (r). It was first published as a part of Newton’s works on classical mechanics in the late 1600s. Force is proportional to mass and distance, related by a proportionality symbol known as the gravitational constant (G). " As they get closer together the attractive force grows, so they move faster and faster. OP's original question is misleading because it assumes the objects move towards each other in steps, halving their distance each time. That is not the case so the question is not valid. However, if they did indeed move in steps as OP proposed, what you have is a classic arithmetic infinite series, and it does have a finite sum: 1/2 + 1/4 + 1/8 + 1/16 ..... = 1 So the two objects would eventually touch in that scenario. But again, that's not how it's happening in reality. |
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Posted: 12/26/2022 12:16:13 AM EDT
[#21]
There is no spoon.
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Posted: 12/26/2022 12:20:10 AM EDT
[#22]
An object in motion stays in motion until acted upon by an equal and opposite force. For example, colliding with another object.
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Posted: 12/26/2022 12:27:13 AM EDT
[#23]
I have a more interesting question.. what would occur differently in a nuclear reaction in which the fusing elements interact with eachother without any neutron reflectors and all that contraption shit they need to make it happen on earth, but outside of a star? Would one even occur? Is such a thing even possible?
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Posted: 12/26/2022 12:30:16 AM EDT
[#24]
Ahh yes, Newton's 87th law. "Just keep arbitrarily halving the distance, cause that makes sense."
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Posted: 12/26/2022 12:31:05 AM EDT
[#25]
Quote HistoryQuoted: I have a more interesting question.. what would occur differently in a nuclear reaction in which the fusing elements interact with eachother without any neutron reflectors and all that contraption shit they need to make it happen on earth, but outside of a star? Would one even occur? Is such a thing even possible? You're asking how can fusion occur other than in a star or a man-made reactor? It can't. You need tremendous force to smash two hydrogen atoms together. The force has to come from somewhere, either the incredible gravitational force and pressure at the core of a star, or from our machines that try and smash them together using lasers, particle accelerators, etc. . |
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Posted: 12/26/2022 12:31:31 AM EDT
[#26]
Quote HistoryQuoted: Well, nothing is actually "touching". The fields of each atom interact with other atom fields, but the atoms never touch. Everything that is so called solid, is not. Sooo, you've never touched a boob |
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Posted: 12/26/2022 12:32:00 AM EDT
[#27]
Quoted: Say you have two objects in space, let's say perfect glass spheres with no surface irregularities down to the atomic level. They are both perfectly uniform spheres with no microscopic protrusions of any kind. Now let's say they are moving together. At some point, they will touch. Or will they? As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Obviously it's possible because objects come into contact all the time. You can clap your hands and see, feel and hear the results. But if distance is infinitely divisible, how can it ever equal zero so that contact can occur? This prevented them from making the logical leap that the distance between the two objects will approach... and become zero. Which means they will touch. Zero is necessary for modern mathematics like calculus. And it is in turn responsible for most modern technology. On a related note... Nothing in everyday life actually touches anything else. Thing's (atoms and molecules that make up objects) only get close enough to interact via their forces such as their electric field from their charge. It take's a lot of effort to make things touch... Like the massive gravitational force of the sun forcing atoms of Hydrogen together so they fuse... becoming Helium and releasing a large amount of the excess mass as energy... |
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Posted: 12/26/2022 12:32:08 AM EDT
[#28]
Unless you want a noo-clar explosion OP, don't try it at home. Mmmmkay?
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Posted: 12/26/2022 12:37:04 AM EDT
[#29]
"The good Christian should beware of mathematicians, and all those who make empty prophecies. The danger already exists that the mathematicians have made a covenant with the devil to darken the spirit and to confine man in the bonds of Hell"
- St. Augustine |
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Posted: 12/26/2022 12:38:03 AM EDT
[#30]
Yes, the space between them is infinitely divisible at any moment, but the total distance is finite and decreasing. Keep subtracting from a finite quantity and you eventually get to zero.
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Posted: 12/26/2022 12:39:16 AM EDT
[#31]
Quote HistoryQuoted: "The good Christian should beware of mathematicians, and all those who make empty prophecies. The danger already exists that the mathematicians have made a covenant with the devil to darken the spirit and to confine man in the bonds of Hell" - St. Augustine Ah, behold the coming of the Dark Ages. . |
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Posted: 12/26/2022 12:44:23 AM EDT
[#32]
Magnets and treadmills...
<- 30-year engineer. |
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Posted: 12/26/2022 12:54:19 AM EDT
[#33]
 Life Doesn't Make Sense! | Pete Holmes: Dirty Clean | HBO |
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Posted: 12/26/2022 12:59:29 AM EDT
[#34]
Quote HistoryQuoted: Well, nothing is actually "touching". The fields of each atom interact with other atom fields, but the atoms never touch. Everything that is so called solid, is not. pauli exclusion principle? |
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Posted: 12/26/2022 1:05:33 AM EDT
[#35]
Quote HistoryI don't know about that. I will add, sometimes they do touch in a supercollider. Or a neutron can touch and split atoms to smaller atoms. |
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Posted: 12/26/2022 1:05:48 AM EDT
[#36]
" when the distance between them can be infinitely divided in half in ever smaller amounts?" Ha, ha, ha.
There is no limitation there to stop two objects from touching. Just means someone doing the math problem will make it harder and harder for themselves to calculate the position of the object in anyway that has anything to do with being productive. Stop dividing the distance in half, there is no point to it. It's like dig a hole but each time you did a shovel full of dirt switch to a shovel half as big. Good luck getting anything done that way. |
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Posted: 12/26/2022 1:09:10 AM EDT
[#37]
lol, read up on Hawking's third law of E=MC2 newb
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Posted: 12/26/2022 1:10:32 AM EDT
[#38]
They will collide because your construct of “dividing the distance between them in half“ is false.
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Posted: 12/26/2022 1:17:06 AM EDT
[#39]
It is like a button that turns on a light. If you are always dividing the distance between on and off you will infinitely calculate a position in which contact is never made, but the button doesn't give a crap and can be pushed past this point
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Posted: 12/26/2022 1:17:35 AM EDT
[#40]
Fuck. I wish I hadn't read that. Now I'll think about that too much.
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Posted: 12/26/2022 1:20:02 AM EDT
[#41]
It's not PHYSICS,
But CALCULUS Derivatives and intergrals |
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Posted: 12/26/2022 1:21:19 AM EDT
[#42]
Under normal conditions, they will never touch. Its simple atomic chemistry.
On the other hand, in an artificial atom smasher such as the The Large Hadron Collider, they may actually touch but they are colliding at almost the speed of light. Need that physics PhD to explain. |
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Posted: 12/26/2022 1:21:43 AM EDT
[#43]
Sorry, I just broke one of the balls. Problem solved.
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Posted: 12/26/2022 1:23:04 AM EDT
[#44]
Quoted: As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Because the distance between them is not dividing in half, it's reducing at a linear rate. You're setting it up like: 1, 1/2, 1/4, 1/8, 1/16 etc which is a deceleration. Your rate is cutting in half as the distance is cutting in half. What force is causing them to slow down their rate of closing? These two spheres on a collision course in space would continue closing at a constant rate like: 1, 3/4, 1/2, 1/4, 0. |
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Posted: 12/26/2022 1:27:50 AM EDT
[#45]
Quote HistoryQuoted: Yes, the space between them is infinitely divisible at any moment, but the total distance is finite and decreasing. Keep subtracting from a finite quantity and you eventually get to zero. No, it isn't. |
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Posted: 12/26/2022 1:31:37 AM EDT
[#46]
Quoted: Say you have two objects in space, let's say perfect glass spheres with no surface irregularities down to the atomic level. They are both perfectly uniform spheres with no microscopic protrusions of any kind. Now let's say they are moving together. At some point, they will touch. Or will they? As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. How is it possible for two objects to ever contact each other, when the distance between them can be infinitely divided in half in ever smaller amounts? Obviously it's possible because objects come into contact all the time. You can clap your hands and see, feel and hear the results. But if distance is infinitely divisible, how can it ever equal zero so that contact can occur? The balls can't touch because that would be gay. |
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Posted: 12/26/2022 1:36:13 AM EDT
[#47]
The inherent gravitational attraction of all objects with mass will eventually result in them touching and likely rebounding, then touching again.
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Posted: 12/26/2022 1:37:34 AM EDT
[#48]
As they move closer together, the distance between them gets smaller and smaller. They are a meter apart, a half meter apart, a half of a half meter apart, a half of a half of a half meter apart. |
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Posted: 12/26/2022 1:40:23 AM EDT
[#49]
When a tree falls in the forest does it make a sound?
 Dan Hill - Sometimes When We Touch (1977) |
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Posted: 12/26/2022 2:57:39 AM EDT
[#50]
Quote HistoryQuoted: You are confusing two issues. One is an asymptote. A mathematical issue. They are approaching for infinity but never touch. (Because the rate of closure is changing for infinity) The other is rate of closure. Rate of closure will dictate when they touch. They are moving at each other at a constant speed. |
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