Pot-pourri half a hundred

Another voyage in Space and time. “Half a hundred, Captain? Come on!” “I know, Scotty, I know. Easy copy. Couldn’t resist. Beam us down Scotty please.” “Here lives a dentist”. Tlalpan, Mexico, 2016. Around the corner. Haven’t tried the dentist. Don’t know why. Nairobi, Kenya. c. 1970. Minette, our Kenya born tabby cat. UNAM, National…