Why do wires tangle? Is borehole water drinkable? Does sea water evaporate? Why are there no more intelligent hominids except humans? How are mountains formed? What makes up non-stick linings on frying pan and are they safe? Plus, the Volkswagen emissions scandal.
Nice show. Dark matter doesn't affect to our own galaxy because it's in an outer halo (shell theorem) but it affects other galaxies because they are out of the halo. Btw... I hope not to die like a pinguin :) TheSpanishPhysicist, Mon, 5th Oct 2015