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multiverse93
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Could some one please try to explain relativity to me? How can time be slowed down?
cristo said:And, no, time is not "slowed down" anywhere in relativity theory.
jostpuur said:Arguments like this are unnecessarily strong. "Time is not slowed down" is right assuming that the original claim "time slows down" meant something that was wrong, but the "time slows down" can mean something that is right also.
multiverse93 said:in what instance is it right
Well, consider the twin paradox scenario--if I leave Earth at relativistic velocities and return, my clock will have elapsed less time than my twin on Earth, and I will have aged less as well. In this case I think it's not unreasonable to use the shorthand "time ran slower for me" to describe this situation.multiverse93 said:in what instance is it right
robphy said:I think it is better to first focus on the ticking-events rather than on the clock-rate.
One can say with more clarity and to the point:
the time-interval between the two successive ticks of the inertially moving clock
is longer than the time-interval between two successive ticks on my identically-constructed inertial clock.
Discussions of rates or simultaneity or whatever can follow next.
The time interval between two successive "ticks" of an inertially moving clock is independent of the observer in prerelativity theory, but in relativity, such time intervals are observer dependent. An observer co-moving with the clock will assign the shortest interval between ticks, while an observer moving relative to the clock will assign a longer interval between ticks.
Sure. Its too much to do in a post or a thread so for questions on things like relativity etc. I started creating a website for each instance of a problem that I needed to do some math and for which pictures help. It eventually grew into a many paged website. The site for special relativity is heremultiverse93 said:Could some one please try to explain relativity to me? How can time be slowed down?
pervect said:One of the big problems I see is that people start out with a preconceived notion of absolute time. I think you may be right about your explanation being more direct, but I think to have a chance of succeeding it needs to address this unfortunately common preconception.
pervect said:What do you think of:
The time interval between two successive "ticks" of an inertially moving clock is independent of the observer in prerelativity theory, but in relativity, such time intervals are observer dependent. An observer co-moving with the clock will assign the shortest interval between ticks, while an observer moving relative to the clock will assign a longer interval between ticks.
pervect said:I'm also not sure about how to handle the "perceived vs derived" issue, that comes up a lot too. The best word I could come up with was "assign".
What do you think? I still have the feeling that people will try and fit this into an "absolute time" framework, without spending even more words on the topic. But I'm not sure how to avoid that. Also, I'm not sure how clear it is from the wording of the post that the "ticks" should be regarded as events (points in space-time),probably the concept of events as points in space-time and "interval" as a measure needs to be further explained as well. More words, and probably some diagrams, before one can expect comprehension :-(.
The theory of relativity is a scientific theory developed by Albert Einstein in the early 20th century. It is a theory that explains how gravity and motion work together in the universe.
The theory of relativity differs from classical physics in its fundamental principles. While classical physics is based on the concept of absolute space and time, the theory of relativity is based on the idea that space and time are relative and can be affected by gravity and motion.
Special relativity is a part of the theory of relativity that deals with objects moving at constant speeds. It explains how time and space are affected when an object is moving at high speeds, close to the speed of light.
General relativity is another part of the theory of relativity that deals with objects moving in the presence of gravity. It explains how gravity affects the curvature of space and time, and how this curvature affects the motion of objects in the universe.
The theory of relativity has been proven through various experiments and observations, such as the bending of light around massive objects like stars, the measurements of time dilation in high-speed objects, and the detection of gravitational waves. These observations have confirmed the predictions made by the theory of relativity, providing strong evidence for its validity.