askamathematician.com

loVdN TIL: If you ever got shrunk down to the size of an ant, not only would everything look bigger to you, but the world would also appear almost a million times darker, light would no longer appear straight meaning that the world around you would be covered in a haze of blurriness and shadow
NW9b TIL “Fire responds strongly to electric fields and is even pretty conductive”
DPkP TIL that the Universe may exist in a false vacuum. If it dropped to a lower energy state in a vacuum metastability event, a true vacuum bubble could form in our Universe, endlessly expanding at light speed and annihilating everything in its volume. Thus, all we know may cease to exist in an instant.