Some things I’m curious about
- How does a blind person who can read using Braille know where to put their hands in order to read?
- What’s the origin of the term “back-of-the-envelope”, as in “a back-of-the-envelope calculation”? The expression “back of a napkin” is similar, and I can see how that evokes the notion of just wanting to jot something down quickly during a meal where a napkin was the only available medium to write on. But “back-of-the-envelope” …? Was there a time when envelopes were more prevalent around our living spaces, such that one could reach for an envelope quicker than they could reach for regular paper? Supposedly you’d need paper to write on and put in an envelope, so I find that surprising.
- Why are the light switches for some bathrooms outside the room?
- Why do establishments that have single occupancy bathrooms still designate genders to each bathroom? If there’s only ever going to be one person in there anyway, does it matter what gender they are?
- I took a domestic flight in Turkey where the entire flight crew was Turkish. Yet the announcements that were intended solely for the crew (“arm doors and cross-check”, “cabin crew please be seated for takeoff”, etc.) were still done in English. Why? If the point of the announcements are to communicate clearly among the crew, and you know that the entire crew has a language besides English as their mother tongue, why not use that language?