With temperatures around 46C, two massive lines of pilgrims converged on each other at right angles at an intersection close to the five-storey Jamarat Bridge in Mina, a large valley about 5km (3 miles) from Mecca.
(This is nowhere near the Kaaba, where pilgrims circle around the stone, and where a lot of crowd-control research has been done.) At light densities, columns of people can cross easily and elegantly, such as at a pedestrian crossing. At high densities, it would become physically impossible to make (push) one’s way through a column moving at right angles, with this happening just as people lose their autonomy. With pressure coming in from behind it would become deadly.
So the chromatic scale is not really the apotheosis of musical description; it's a convenient way to tune pianos.
Yes, yes, yes!
For example, recursion is often be appropriate when working through some sort of data structure.
Yes, traversing or pretty-printing a Lua table (which may contain tables itself) is commonly needed and should be easy enough for a beginners’ class
Iff you use Lua of course.
BootChess vs1K ZX Chess
Probably a bit like watching snails race, but snail-races can get interesting.
"Sometimes insanity is the only alternative" -- button at a Science Fiction convention.