suppose the wind is blowing on the surface of the earth in a constant and continuous fashion. Suppose also that at every point on the equator, the wind is blowing directly east, so the wind doesnt blow anything from one hemisphere to another. Show that there must be some point in the northern hemisphere that blows anything dropped at that point back to that point in exactly 1 minute
Topology Fixed Point Theorem
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general-topology
fixed-point-theorems
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0I have a continuous function $f$ defined on $N$ which assigns $x$ to a point where the feather lands after 1 minute... other than that, I don't know where to start, other than this question might use fixed points – 2012-08-06