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Modern Physics Relativity

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Page 1: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Modern Physics

Relativity

Page 2: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Pre-Newtonian views of space

http://www.jimloy.com/cindy/ptolemy.htm

http://physics.syr.edu/courses/java/demos/k

ennett/Epicycle/Epicycle.html

Neptune’s discovery

(Wikipedia)

Page 3: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Waves propagate by displacing a medium.

Waves propagate in the medium at one and only one velocity.

The luminiferous ether.

Page 4: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Galilean Transformation:

Relativity of rectilinear motion.

Page 5: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Early measurements of the speed of light:

The role of Jupiter’s moons.

Fizeau’s experiment regarding

drag of the ether.

Page 6: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Stellar

aberration and

the ether

Page 7: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Measuring the speed of light (Phys 3650 method):

Page 8: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Waves propagate by displacing a medium.

Waves propagate in the medium at one and only one velocity.

To test the idea, we will need to understand the concept of the interference of light.

Let’s review Young’s classical double slit experiment:

Page 9: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Michelson-Morley experiment

Interference of light and 2-slit experiment

http://vsg.quasihome.com/interfer.htm

Michelson interferometer:

http://www.ub.edu/javaoptics/applets/Mi

chelEn.html

Page 10: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Michelson-Morley: Vector addition of velocities.

Page 11: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between
Page 12: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

World lines

Page 13: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

Lorentz Transformation: Velocities

Page 14: Relativity - uwyo.eduphysics.uwyo.edu/~rudim/S11_Relativity1_stud.pdf · 2011-01-11 · Jupiter Jupiter's /////7/½ shadow Sun Jupiter's moon earth Fig. 52 L is the distance between

The GPS system and Relativity