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fredreload
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When an object move in space, what decides where it moves to? For instance there's no rule saying you can't move from 0 to 3, but have to move from 0 to 1 simply because 1 is next to 0 in terms of distance.
fredreload said:I'm looking more for a science proof has to do with the particle movement. The smallest distance is known as Planck Length as someone mentioned. (http://en.wikipedia.org/wiki/Planck_length) So if you move through Planck Length from point A to point B, what decides where you show up when you hit point B, because with Planck Length being the smallest distance it seems like you've skipped this distance and ended up in a new place. Does movement of any length and size comes down to this as a minimum?
fredreload said:When an object move in space, what decides where it moves to? For instance there's no rule saying you can't move from 0 to 3, but have to move from 0 to 1 simply because 1 is next to 0 in terms of distance.
CWatters said:I'm no expert on this but...
It sounds like the OP is assuming particles can only occupy positions that are on a plank scale grid. Are there theories that suggest this might be the case?
fredreload said:I understand the object is supposed to move in the direction of the applied force, I'm just not sure how the object ends up at that position after the displacement. To me it seems like every movement made is going through multiples of Planck Length, and since movement is possible, there must be a smooth transition for an object to travel from one location to the next. Like something is telling you, after you move away from point A, you will end up in point B. I guess my question would be what goes on between Planck Length that displaces you to the next position.
The idea of the Planck length is that you could not use quantum mechanics (as it is now) to describe motion on a length of scale smaller than the Planck length. You would need some kind of theory of quantum gravity, or some other extension which they haven't thought up yet. But this doesn't necessarily mean that motion occurs in 'steps' of the Planck length.fredreload said:To me it seems like every movement made is going through multiples of Planck Length, and since movement is possible, there must be a smooth transition for an object to travel from one location to the next.
fredreload said:When an object move in space, what decides where it moves to? For instance there's no rule saying you can't move from 0 to 3, but have to move from 0 to 1 simply because 1 is next to 0 in terms of distance.
I am pretty sure that this is not correct.uperkurk said:Then when you roll the atom, it has to move in the form;
1 - 2 - 3 - 4 - 5 ect Planck length at a time.
fredreload said:After some thought, I think force decides the direction the object is supposed to travel, but not the destination. Since force remain constant at all places, but the place you travel to is different. So does that mean the space you're in uses force to find the destination you travel to? And does bending space generate a force in return. Just some thought, hopefully I'm not off topic.
Yeah, that is true. But this is true for a path of any length, for example A and B could be meters away from each other. This is why I was saying that particles don't just do little jumps on the order of the Planck length.Khashishi said:When an object moves from point A to point B, unless you actually make a measurement of the object in an intervening point, you can't say for certain that it has passed through this intervening point. According to Dr. Feynman, you have to take into account ALL possible routes connecting point A to point B to calculate the probability for the object to end up at B. The exact path is unknowable and unphysical, so you might as well say that the object jumps from A to B.
BruceW said:Yeah, that is true. But this is true for a path of any length, for example A and B could be meters away from each other. This is why I was saying that particles don't just do little jumps on the order of the Planck length."
fredreload said:I think spacetime decides how particle should travel.
MikeGomez said:Absolutely. But spacetime also needs information from the particle.
In case #1 the particle is moving at some velocity and we say that spacetime moves the particle.
In case #2 accelerate the particle to twice it’s initial velocity. Now spacetime moves the particle at twice the original velocity.
So how does spacetime ultimately decide at what velocity to move the particle? How does it decide which velocity of the two cases to use, or of an infinity of other possible cases? Spacetime uses information (kinetic energy etc) of the particle itself.
fredreload said:Actually energy should have a direction heh, else the model would not work.
An object moves in space according to the laws of motion, specifically Newton's First Law which states that an object will remain at rest or continue to move at a constant velocity unless acted upon by an external force.
Gravity is a force that pulls objects towards each other. In space, gravity affects an object's movement by causing it to orbit around a larger object, such as a planet or star. The strength of gravity also determines the speed and trajectory of an object's movement.
No, according to Newton's First Law, an object will remain at rest or continue to move at a constant velocity unless acted upon by an external force. In space, the absence of external forces can only be achieved in a perfect vacuum, which is not possible in reality.
Different forces, such as gravity, friction, and air resistance, can impact an object's movement in space. Gravity is the dominant force in space, but other forces can also affect an object's trajectory and speed. For example, air resistance can slow down an object's movement in the Earth's atmosphere.
Yes, an object can move in a straight line in space if there are no external forces acting upon it. However, in reality, there are always some external forces present, such as gravity, which can cause an object's movement to deviate from a straight line.