In article
,
"Jack )" writes:
This is getting off topic but what the hell - it's Christmas. And in
any case, 25 December is Newton's birthday.

Said Sir Isaac: "I've got a great notion
That force is a changer of motion.
Let's put it this way:
F = Ma
The rest is just sweat and devotion."

He was obviously a confounded modernist. At my school, it was always
P = mf

Of course, that would rather bugger up the rhyme.
--
John Hall
"Honest criticism is hard to take,
particularly from a relative, a friend,
an acquaintance, or a stranger." Franklin P Jones