Talk:895: Teaching Physics

Explain xkcd: It's 'cause you're dumb.
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I guess that this emphasize how a good intended teacher try to explain the general parts of the topic with simple words and this is ruined by a douche student.... I think that is the same student that says "Boooooring" when the teacher explain it without any analogy. Pablo Ochoa

I hit something like this when analogising the expansion of the Universe with dots on a balloon... people have a hardtime ignoring the insides of the balloon and think that is the centre. Goes to show how analogies can only go so far. ( 14:56, 14 January 2014 (UTC)MARK ZAMBELLI, edited 20140114)

Maybe the problem with the universe is that the actual topography of the universe is still unknown. So since nobody knows what is the shape of the universe, it makes indeed little sense to try to define a centre. If the universe turns out to be a sphere (even if it doesn't seem likely) we could define a centre.Meneldal (talk) 02:16, 29 January 2015 (UTC)meneldal

I understood the positive curvature version of the Universe as one where the Universe is the surface of a 4D sphere, where there is no real centre.

An analogy doesn't have to be perfect, it just has to be helpful. It is meant to be a stepping stone between not understanding and full understanding, so your mind can take two smaller leaps instead of one huge one. Apologies for the poor analogy. 21:36, 5 February 2014 (UTC)