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Einstein's Theory of Relativity

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Zhian Selevany

on 17 January 2014

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Transcript of Einstein's Theory of Relativity

Einstein's Theory of Relativity

Albert Einstein
Who was he?
Why is he famous?
What did he accomplish?
How does this theory affect us today and in the future?
We are able to use this theory to try to determine how old fossils are through his equation :

With the medical advancements, PET scans were created through special relativity and quantum physics. We can trace our ancestry more accurately and medically advance today and in the future.

Einstein's theory of special relativity is the most remarkable in research on time travel. It explains how if you were to travel at the speed of light at the same time as your twin they would age slower than you.


Theory of Special Relativity
Theory of General Relativity
Theory of Relativity
Einstein's theory of relativity dealt with everything. It included the stars, moons, planets, atoms, molecules, humans, plants, animals, etc.
There are two theories in this one: Theory of Special Relativity and Theory of General Relativity
How and Why did Einstein Develop This Theory
Einstein always had an interest in science, since childhood.
He was always looking through scientific conclusions from other scientists and researching their information.
He had a lot of questions about the universe and solved them himself!
Brief Biography
2 Very Important Principles
Connecting space and time
Connecting mass and energy
Mass and energy were thought of as being independent of each other.

Einstein discovered that the closer and object would get to approaching the speed of light, the mass would rise.

Where the famous equation
E=mc^2
came.
energy=(mass)(speed of light)^2
Theory of General Relativity
Example
References
The Atomic Bomb - Nuclear Energy
Dentistry & Medical
Have you gone to the dentist recently and gotten an X-ray? You've experienced atomic energy at work. It's used in other areas of the medical field, as well, such as cancer treatments and research. (Burgess, 2014)
Television
CloudBiography. (2012, May 30)
Albert Einstein Biography

[Video file].

Retrieved from www.youtube.com/watch?v=Xc6f_qF81BU
Tables Turn
Einstein was very curious about the world and had many questions.

Science was very underdeveloped back then because of religion.

If anything went against religion, it was a problem.

New Theory
Summary of General Relativity
The principle of relativity: The laws of physics don’t change, even for objects moving in inertial (constant speed) frames of reference.

The speed of light is the same for all observers, regardless of their motion relative to the light source. (Jones, 2014)
Published his theory in 1905 in Annalen der physik
Based off two very important concepts
Unified space and time
Unified mass and energy

Concluded that there are 4 dimensions. The first 3 were in relation to the universe.

The 4th was time, it meant that time was not absolute and changes.
Motion must be
uniform
in order for special relativity to apply.

It only explains motion that is constant and moving in a straight line. If it changes from a straight line, special relativity does not apply.

This is where
general relativity
comes in.
Summary of Special Relativity
Einstein spent a decade creating his second theory of relativity.

Published in 1915

Known as the
general theory of relativity

Expansion of theory of special relativity

Included acceleration
Einstein's theory of general relativity predicted that the space-time around Earth would be not only warped but also twisted by the planet's rotation. (Redd, 2014)
In it, he determined that massive objects cause a distortion in space-time, which is felt as gravity. (Redd, 2014)
Gravity is not a force it is an affect of where something exists.
The distortion in space-time can be explained through Ms. Caoutte's demo in class.
She placed a weight in the middle of a piece of cloth, this caused a dent.
She proceeded to roll a marble around from the outside which caused it to spiral around toward the middle.
Also how rocks are pulled in space by the gravity of planets.
minutephysics. (2012, March 19) Einstein and The Special Theory of Relativity [Video file].
Retrieved from www.youtube.com/watch?v=ajhFNcUTJI0
Razin Shaikh. (2011, August 17). Einstein’s General Theory of Relativity [Video file].
Retrieved from www.youtube.com/watch?v=fEZupmpTcOU

Einstein himself did not create the atomic bomb design, his theories proved that they could be made.

E=mc2 is possibly the most recognizable scientific equation. With it, Einstein showed how a very sizable and very powerful amount of energy could be released from an extremely small amount of matter. Enter atomic energy, which is energy of an atom, the basic unit of all matter. (Burgess, 2014)

Many people associate Einstein with the development of the atomic bomb or nuclear energy. In 1905, Einstein was indeed the first person to prove that atoms actually do exist, not just hypothetically. And in his most famous formula, E = mc², he showed that the mass of atoms contains enormous quantities of energy. ("Einstein's Legacy," 2014)
Thanks to his Special Theory of Relativity that we are able to receive such sharp images today. Electrons are accelerated in a television and, according to the Theory of Relativity, the mass of electrons thereby increases measurably.

If one did not take this increase in mass into account, the electrons on the screen would show divergences in the millimetre range. All the images would be blurred. ("Einstein's Legacy," 2014)
More on the atomic bomb
Jones, A. Z. (n.d.). Einstein’s Theory of Relativity Retrieved January 5, 2014, from http://physics.about.com/od/relativisticmechanics/a/relativity_2.htm
Redd, N. (September 18, 2012). Einstein’s Theory of General Relativity Retrieved January 5, 2014, from http://www.space.com/17661-theory-general-relativity.html
Burgess, J. (2014). 10 Discoveries Relativity Made Possible Retrieved January 5, 2014, from http://dsc.discovery.com/tv-shows/curiosity/topics/discoveries-relativity-made-possible.htm
The Center for History of Physics. (1996-2014). Albert Einstein Image and Impact Retrieved January 6, 2014, from http://www.aip.org/history/einstein/emc1.htm
Jones, A. Z, Robbins, D (2014). Einstein’s Special Relativity Retrieved January 6, 2014, from http://www.dummies.com/how-to/content/einsteins-special-relativity.html
EINSTEINJAHR (2005). Einstein’s Legacy Retrieved January 9, 2014, from http://www.einsteinjahr.de/page_37.html
Johnson, M. A. (April 19, 2005). It’s All Albert’s world. We just live in it. Retrieved January 9, 2014, from http://www.nbcnews.com/id/7318567/ns/technology_and_science-science/t/its-alberts-world-we-just-live-it/#.Utdexp5dVdc
THANK YOU!
Zhian Selevany
ACE Physics Period 2
Due Date: January 15, 2014
BTW Ms. Caoutte thanks for being such a great teacher, I'm gonna miss you so much and because of you I love physics now!
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