I fail to see how time and space go hand in hand... I have not really looked into it but I was talking with my friend and I cant seem to grasp something.
How are they relative?
He said if you travel really fast in a circle for 10 years time around you would go faster.
But I fail to see how this works. I figure you would be traveling really fast for 10 years at whatever speed and when you stop it would only be 10 years around you would it not?
Well since light makes time pass and if you go faster than light you travel in time, if you get closer to the speed of light time goes slower for you. I don't know why light makes time pass though as I'm not a scientist.
Well since light makes time pass and if you go faster than light you travel in time,
There are restrictions to a object flying near speed of light, I don't remember whether you gain extreme weight, or energy, or the contrary; but anyway it is actually not possible for us to get even close to speed of light. Travel in time when going faster than light? Has that ever been verified? I don't think so.
There are restrictions to a object flying near speed of light, I don't remember whether you gain extreme weight, or energy, or the contrary;
You gain extreme weight. The energy you use to accelerate further (when you're close to the speed of light) will mainly be put into your mass. That's why you can't reach the speed of light.
if you go faster than light you travel in time,
It's not possible to travel faster than light so it doesn't really make sense to argue what would happen.
I know you guys don't like wikipedia but I think this here sums it up pretty good:
In physics, spacetime (or spaceâ"time, space time) is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space as being three-dimensional and time playing the role of a fourth dimension that is of a different sort from the spatial dimensions. According to certain Euclidean space perceptions, the universe has three dimensions of space and one dimension of time. By combining space and time into a single manifold, physicists have significantly simplified a large number of physical theories, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels.
In classical mechanics, the use of Euclidean space instead of spacetime is appropriate, as time is treated as universal and constant, being independent of the state of motion of an observer. In relativistic contexts, however, time cannot be separated from the three dimensions of space, because the observed rate at which time passes for an object depends on the object's velocity relative to the observer and also on the strength of intense gravitational fields, which can slow the passage of time.
He said if you travel really fast in a circle for 10 years time around you would go faster.
I don't think so. It'd just be the spinner's depiction of speed. You know how you run really fast for a long time and it feels like you're accelerating? Well, you aren't. You just think you are by getting used to your speed.
Well since light makes time pass and if you go faster than light you travel in time, if you get closer to the speed of light time goes slower for you.
I don't understand either... Time is just our way of saying how long 10 minutes is for example. If i was going faster than the speed of light for 10 minutes and stopped wouldn't I be 10 lightminutes into the distance but still have only traveled for 10 minutes?
time is a measure of how long something is space is a certain place or area
Nothing is flat or solid. If you look closely enough at anything you'll find holes and wrinkles in it. It's a basic physical principle, and it even applies to time. Even something as smooth as a pool ball has tiny crevices, wrinkles and voids. Now it's easy to show that this is true in the first three dimensions. But trust me, it's also true of the fourth dimension. There are tiny crevices, wrinkles and voids in time.
I'm not steven Hawkings but how can time possibly be a physical object? This is what I can't grasp! To me time is just a human concept! I want to understand but I think steven hawkings might be stretching it here to make a fantasy seem true.
I did a terrible job of stating my real question I am sorry. I was really tired after work, anyways, this is sort of a question relating to time travel.
He said if you travel really fast in a circle for 10 years time around you would go faster.
What I meant to say is if you travel at say.. speed of light for 10 years time and stop it would be 10 years for you but.. (random number) 10,000 years for the universe. I fail to see the logic in this.
Time is just our way of saying how long 10 minutes is for example.
You seem to be getting the measurement and what's being measured mixed up. Think of it as a quantity to be measure like length. If we say something is a meter long the concept of what a meter is, is the human concept to describe that quantity of length. But the quantity itself is not the human concept, just how we define it is.
What I meant to say is if you travel at say.. speed of light for 10 years time and stop it would be 10 years for you but.. (random number) 10,000 years for the universe. I fail to see the logic in this.
From the article in the link above, what I understood is that the speed of light is the top speed in the universe. In order to prevent paradox's and such, the universe and physics prevent anything from reaching that speed. In order to do that, any object that tries to surpass it slows down. An example from the article: Imagine a train going 99.999999999 percent of the speed of light. The combined speed of passengers walking towards the front train and the train should surpass the speed of light. But, physics slows it down tremendously in order to preserve basic principles. As a result, the passenger's time is slower than a person on Earth's. I also grasped that gravity slows time down and that Earth's time is slower than time in space.
But I fail to see how this works. I figure you would be traveling really fast for 10 years at whatever speed and when you stop it would only be 10 years around you would it not?
This is not a guess. Its been proven. Look up Einstein's theory of relativity. It states that time is not relative (time doesn't flow the same speed everywhere). The special relativity part states that as you approach the speed of light, time slows down. So if you go at the speed of light, then time around you stops completely. The reason this happens is because the speed of light is a constant, which means no matter what speed you go, it is still 299 792 458 MPS. So lets say you are on a bus going 30 miles per hour, and you shine a flash light. Instead of the light coming from the flash light going the speed of light + 30 MPH, it still goes 299 792 458 MPS. So if it still goes the same speed then time around it has to slow down.
Hey guys, speed of light is faster than anything. People say everything is possible, but can't be god to cross the speed of light. It s like proving the impossible to be possible.
Hey guys, speed of light is faster than anything. People say everything is possible, but can't be god to cross the speed of light. It s like proving the impossible to be possible.
