hilary_m
hilary_m t1_iudtnz7 wrote
Reply to ELI5: Morse code is made up of dots and dashes. How did telegraph operators keep from losing track of where one letter ended and another began? by copperdomebodhi
Had master morse code expert who could listen to three streams of morse at the same time. Just like you can follow three speakers. At a party.
hilary_m t1_iv4no0v wrote
Reply to Why don't we have Neandertal mitochondrial DNA? by nodeciapalabras
Read "the world before us" interesting chapters about hybridisation in primitive hominids. Remember there are at least 3 interbreeding subspecies. Us, Neanderthals and Denisovians. Probably all combinations fertile.