Space-time Invariance and Quantum Gravity

Space-time Invariance and Quantum Gravity PowerPoint PPT Presentation


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Space-time Invariance and Quantum Gravity

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1. Space-time Invariance and Quantum Gravity By Dr. Harold Williams of Montgomery College Planetarium Title slideTitle slide

2. World Lines t for time x for distance dx/dt speed

3. Space-time At least one space dimension not shown

4. World lines, sheets, and volumes of particles, strings, and branes We know we live in a universe with at least 3 space dimensions that we have some freedom in. Maybe more elaborate structures exist, but we do not as yet perceive them.

5. Special Relativity http://en.wikipedia.org/wiki/Special_relativity http://en.wikipedia.org/wiki/Special_relativity_for_beginners “Nothing but Relativity” by Palash B. Pal shows that only Galilean and Einstein Relativity are even possible with the “Principle of Relativity” “Principle of Relativity” = “Physical laws appear the same to any inertial observer.”

6. There is a Fastest Speed What ever that fastest speed is nothing can move faster than fastest. c is the fastest speed. Experimentally this, c, is the speed of light, electromagnetic radiation, in a vacuum.

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