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### Course: Breakthrough Junior Challenge > Unit 1

Lesson 3: 2015 Challenge — Physics- Special theory of relativity - 2015 Challenge Winner!
- A visualization of special relativity
- Chromatic aberration
- Orbital mechanics
- What is light?
- Special and general relativity
- The science of fireworks
- Quantum tunneling
- Antimatter
- Special Relativity
- What Einstein missed: The EPR paradox
- Virtual particles and gravity
- Interstellar and Hawking radiation
- All about superconductors
- Entropy and the direction of time
- Magnetism, light and the magneto optic Kerr effect
- The theory of everything

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# Special Relativity

By Sage Simhon

Einstein's theory of Special Relativity is one of the most important and fundamental concepts in science, and it gave way to many further theories.

Einstein's theory of Special Relativity is one of the most important and fundamental concepts in science, and it gave way to many further theories.

## Want to join the conversation?

- but T / 0 is not infinity; it is undefined. am i correct(1 vote)
- Yes, you are correct. T/0 is undefined. BUT, some people say that it is infinity, for a lot of different reasons. Other people say it's any number.

Watch these:

https://www.khanacademy.org/math/algebra/introduction-to-algebra/division-by-zero/v/why-dividing-by-zero-is-undefined

https://www.khanacademy.org/math/algebra/introduction-to-algebra/division-by-zero/v/why-zero-divided-by-zero-is-undefined-indeterminate

(The second one is the special case of 0/0)(0 votes)

- If Lambda is so important in Physics why does no one acknowledge its existence. Einstein wrote about it, but yet it is not included. WHY?(0 votes)
- I know this comment is 5 years old, but for anyone who's still wondering--lambda is the 11th letter of the Greek alphabet. Scientists and mathematicians choose to use the symbol to represent various things under different contexts. Similarly, we've all heard of Pi and used it in our math classes. In chemistry, pi can be used as a number AND as a variable (osmotic pressure).(0 votes)

- Wait. I understand how at light speed time stops and how as you speed up time slows but it only becomes significant at relativistic speeds where Newtonian physics isn't accurate.

But how would going faster than the speed of light give you imaginary time? Wouldn't you just go backwards in time and thus experience negative time?(0 votes) - Where are her appendix videos with some derivations, which she mentions at7:13?(0 votes)