1. Michelson and Morley
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the maths
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Although Einstein himself did not consider the results of Michelson and Morley's experiment as necessary for his development of Theory of Relativity, the experiment is nonetheless important that indirectly supports both Maxwell's there's and the postulates that underpin Einstein's.
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the maths
2. Frames of reference Explained
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3. An intro to relativity from history
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Einstein's theory of relativity, although brilliant, did not Coe from a vacuum. How ideas are built on the foundations of others, especially Maxwell. In fact Einstein had a picture of Maxwell in his office. |
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4. The consequences of relativity...Time Dilation, and the evidence
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worked solution
going deeper
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What is time dilation? It is a direct consequence of Einstein's postulates and is explained here. I also discuss two key experiments that validate it.
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worked solution
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going deeper
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5. The consequences of relativity...momentum dilation, and the evidence
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worked solution
going deeper
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coming soon, but check my worked solution
worked solution
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going deeper
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6. The consequences of relativity...length contraction
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worked solution
going deeper
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coming soon,
worked solution
going deeper
7. The consequences of relativity...What is simultaneity?
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worked solution
going deeper
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Using an exam question, I explain the concept of simultaneity.
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worked solution
going deeper
8. An intro to General theory of relativity
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worked solution
going deeper
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coming soon
worked solution
going deeper
There are a number of ways we can explore this concepts further.
One aspect of most high school physics course on kinematics, is that they only concern themselves with constant acceleration. In reality however, acceleration, like displacement and velocity, can chance with respect to time.
Velocity is the rate of change of displacement. Unit: m/s2
Acceleration is the rate of change of velocity.
So what is the rate of change of acceleration?
The answer to that is the jerk. So slope of the acceleration vs time graph is the jerk. Unit: m/s3
We can go further.
What is the rate of change of the jerk?
Well it's the snap. Unit: m/s4
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s5
I think you can guess the next one.
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- pHET graphing animation - this interactive from the University of Colorado pHet team is a great way to demonstrate the relationship between motion and its graphical analysis. That why I used it in my video. At this time its Java based so will only work on PC/Mac