How long is the flag pole

[GR@PH;<'S]

An engineer, a mathematician, and a physicist were standing around the university flagpole,
when an English professor wandered by.
"What are you doing?" he asked.
"We need to know the height of the flagpole," said one,
"and we're discussing the formulas we might use to calculate it.
" "Watch!" said the English professor.
He pulled the pole from its fitting, laid it on the grass, borrowed a tape measure and said,
"Exactly 24 feet."
Then he replaced the pole and walked away.
"English professor!" sneer the mathematician,

"We ask him for the height, and he gives us the length."

GR@PH;<'S   :Hammys pint: