You can become a civil engineer, help to build bridges etc. Those are three-dimensional structures, described by three-dimensional geometry.
1 Answers · Science & Mathematics · 22/02/2013
...in certain types of spaces , and there are much weirder spaces where the closure won't be compact. See http://en. wikipedia .org/wiki/Particular_point_topology#Compactness_Properties...
1 Answers · Science & Mathematics · 07/11/2013
...an example of endowing the first uncountable ordinal space with the order topology. When you do this, it is sequentially...sequence has a convergent subsequence) but not compact. http://en. wikipedia .org/wiki/First_uncountable_ordinal
1 Answers · Science & Mathematics · 05/04/2011