Today we will discuss the shape of the universe. To a first order
approximation, it's a hypersphere, a 4 D circle.
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Did you get that, Dad?
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Macroscopically, there are three spatial dimensions, 1, 2...
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and 3. We add a fourth, for time.
f 4 @ 1/100, 105 mm , taken 2016:10:03 17:16:07.
Think of a four dimensional circle; a hypersphere.
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Do you understand, Grandpa?
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Excellent!
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Now let's continue...
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Feel free to stop me if I confuse you.
f 4 @ 1/100, 105 mm , taken 2016:10:03 17:16:22.
Hunter is not paying attention.
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and he's a bit disruptive!
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Gravity is best modeled using 4 dimensions. To clarify this,
think of a square...
f 4 @ 1/30, 35 mm , taken 2016:10:03 17:17:58.
Hunter completly misses the professor's lucid discussion on 4 D space
time.
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Grandma is paying attention, however.
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Today's homework is to derive the Schwarzschild black hole equation.
Class dismissed.
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Hunter schmoozes up to Grandma for help with that homework.
f 4 @ 1/40, 50 mm , taken 2016:10:03 17:37:52.
