Saturday, November 19, 2011

How should I present the Theory of Relativity in 6 minutes?

I have to do an oral presentation about Einstein. I completely understand the Theory of Relativity but I am not sure how I can present it. I will have access to a chalkboard so I can write things and draw things. I want to include E=mc^2, Special Relativity, and General Relativity.|||Depends how deep you want to go. I bet you don't understand GR very thoroughly (its pretty advanced) - and if you say curved space time is like one of those daft diagrams of bent lines or like a rubber sheet then you really haven't grasped a thing.





In 6 minutes I would stcik to what lead to relativity (constanct of speed of light, priciple of equivalence, light being affected by gravity from thought experiments to avoid violation of energy conservation).





If I am explaining SR to someone I draw a space time diagram, then show how it would be transformed non relativistically (the axes rotate which changes the speed of light) then relativistically ( the axes converge to keep the speed of light constant) and then point out that this means that simultaneity fails. This is the central plank of SR and it is often not even touched on.|||You may be biting off a lot for six minutes....





The best thing to do is write a short paper on what you want to say. Try to make sure to include real-life examples as much as possible, or at least things that people can imagine, like talking about two spaceships traveling away from each other at the speed of light, one flashes a light at the other, and it reaches the other at the speed of light!





I'm not going to try and tell you HOW to put it together, the information has to make sense to you, has to flow from the way you think. Just remember, like a teacher, you have to organize your information in such a way that it makes sense. Don't be afraid to have fun with it and make fun of yourself. If you relax by realizing that you are not going to be perfect, and let your audience know that you don't take yourself too seriously, they will respond favorably. If you can't relax, for the love of GOD don't imagine them naked--that's a trick for comedians!





If it's supposed to be about Einstein, stay away from a detailed talk on his work, just talk about him--If it's supposed to be about the science, well, do the opposite.





Anyway, once you have what you want to say worked out and written down, make notecards with ONLY the main points--No details!!! Then practice your talk. Practice with other people, with your dog, cat, housefly, teddy bear, whatever--and a stopwatch. Only use the notecards to jog your memory. Don't try to memorize the speech--If you do the first thing that will happen when you look out at your audience is you will choke.





Trust me--I was a planetarium presenter for 6 years. I've done this once or twice... Using the above method, I was able to give a neat presentation on Pereus and Andromeda, the whole adventure, in about 5 minutes. It's easy with practice.





Best of luck, hope this was helpful.|||Three important points (two minutes each):





First..E = Mc^2 as the source of energy via both fission and fusion.





Second...time, mass, and length vary according to the Lorentz Transform L(v) = sqrt(1 - v^2/c^2). Time varies as t = t0/L(v), mass as m = m0/L(v), and length as l = l0 L(v); where t, m, and l are time, mass, and length as observed by someone outside the framework traveling at v velocity.





Third...gravity is a curvature in space...(use the bowling ball on a rubber sheet as a model of space curving under mass). Gravity lens in space have been observed verifying the curvatures in space.





Those are the highlights as I see them. Check the source for more on the TOR.|||A very bad scenario on a young brain. I wrote one article on Einstein for my daughter, please rewrite it for use under specified conditions: as follows:





Albert Einstein





Albert Einstein was known by many titles: “Father of Modern Mathematics”, “Man-of-Evil for his contribution of atom bomb”, “greatest scientist who influenced modern thinking”, etc.





He was born on 14 March 1879 in Ulm, Germany. As a kid, he started speaking very late (4 years), but whatever he spoke has remained mind stretching even for the most learned. He began his school career in Munich. In 1895, Einstein failed an examination for admission to diploma in electrical engineering. He liked to study mathematics and physics. In 1908, he became a teacher of mathematics and physics.





Einstein worked in the patent office in Bern (1902 to 1909). He was awarded Noble Prize for physics in 1921 on ‘Photo Electric Effect’ based on Quantum Theory of Light (1905). 1905 was a great year for physics, which was recognized recently as the “World Year of Physics” by the United Nations.





In 1905, he became famous for his ‘Special Theory of Relativity’ that proved ‘mass’ and ‘energy’ of our cosmos are like sea-saws having pulley on the ‘speed of light’. He revolutionized the concept of ‘time’ and ‘space’. He later commented that ‘had I known that atom bomb would be used to kill people (Japan)’, I would have died with the “theory”.





In 1917, he gave another famous research ‘General Theory of Relativity’, which proved in 1919 the ‘bending of ray of light near the sun’ and ‘precision of perihelion of planet Mercury’ – considered as a black magic in astronomy. This was termed as a revolution in science with new theory of the Universe. One day, a famous person went to his house, and asked to show him his Lab. He took him to his living room/office, and pointed to his “PEN” – saying that is it – I AM NOT A STAR GAZER!





He later shifted to USA, and chaired the most prestigious institutions wherein many leading scientists of all times worked. Einstein was very much impressed by the Mahatma Gandhi. He had only two photographs in his home, that of his mother and Mahatma Gandhi. He died a natural death on 18 April 1955 in Princeton, New Jersey, USA.





His quotes:





* Imagination is more important than knowledge


* Everything should be made as simple as possible, but not simpler


* If I give you some money, you will be richer and I'll be poorer. But if I give you an idea, you will have a new idea but I shall still have it, too.


* Any man who reads (or watches TV) too much and uses his own brain too little falls into lazy habits of thinking.


* Do not worry about your difficulties in mathematics; I assure you that mine are greater.








%26gt;%26gt;%26gt; pls give your result or reaction after presentation on my email ID

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