carltg_

4 ms·

1. 1.▲
   by carltg_ 2y ago

   I hear this point parroted all of the time, but I think it is a misunderstanding and a poor visualization. Consider the same situation, but instead of focusing on the radius of the center sphere, focus on the distance between the spheres on
2. 2.▲
   by carltg_ 2y ago

   Not really, time doesn't make something difficult, just tedious. For the cat puzzle, smaller pieces doesn't really make a difference. Once you get a corner it is easy to line up and knock them down. So, just tedious
3. 3.▲
   by carltg_ 2y ago

   While 9kHz[3e-7/cm] (for an earth mode radio example) is lower than the plasma frequency of the ionosphere, 9MHz[3e-4/cm] (critical so that the ionosphere acts as a waveguide), would this be significantly lower, and hence have a h
4. 4.▲
   by carltg_ 2y ago

   The genus is insufficient to determine if an object is equivalent to the other. Orientability distinguishes the mobius strip and the torus, a torus is orientable whereas a mobius strip is not. Therefore, topologically speaking they are not