Barbara Ryden: A Teacher's Teacher (#206)
Into the Impossible With Brian Keating
00:00
The Curvature of the Universe
The universe is flat with a precision of less than half a %. So why teach the controversy? Why don't we just keep it youno? Just teach only the flat universe? That's the dilemma i go through every year. Of course, teach everything in your book verbatim. But tell me, should i struggle with this? Should i feel guilty about about teaching them things that we know aren't are not correct? I platin from a broader, you might say, a more philosophical viewpoint. The idea that it could be positively curved on very large scales and have a finite volume gives me the hebe jebies. Ye know about you, but infinity gives me the
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