This has nothing to do with physics, but you know how sometimes kitschy shops have signs
where "the" is spelled with a "Y"?
Ever wonder where that came from?
When people started writing in old English, the sounds [þ] and [ð] were represented
by a symbol called thorn.
As in, "thorn-O-R-N".
The use of a digraph, that is, two separate letters, to represent thorn was only introduced
by the French and their crazy "way-more-letters-than-necessary-spellings" after the Norman invasion.
So English scribes started using "T-H" to spell newfangled French words like "theatre",
"Esther," and "neanderthal", and in the meanwhile became sloppier and gradually stopped writing
the top part of thorn out of laziness.
So when printing presses started showing up in England in the late 15th century and their
European typefaces didn't have stamps for the letter thorn, creative printers decided
that "Y" was close enough, plus it saved them one letter's worth of valuable space over
the more state-of-the-art "T-H".
Thus, they would abbrev.
"the" as Y-E, "that" as Y-T, "this" as Y-S, and so on, like this excerpt from the mayflower
compact, or "ye olde philadelphia mint."
And that's where "the olde shoppe" spelling comes from… so when you hear people pronounce
Y-E as "yee", you might want to remind them that "ye" in old english means "you all"…
and as cool as it is, I'm not sure "y'all old shop" conveys the "Merry Old England"
vibe they're going for.