A prominent Polish scientist conducted very
important experiment. He trained a flea to jump upon giving her a
verbal
command ("Jump!").
In a first stage of experiment he
removed flea's leg, told her to
jump, and the flea jumped. So he wrote
in his scientific notebook: "Upon
removing one leg all flea organs
function properly."
So, he removed the second leg, asked the
flea to jump, she obeyed, so
he wrote again: "Upon removing the second
leg all flea organs function
properly."
Thereafter he
removed all the legs but one, the flea jumped when
ordered, so he wrote
again: "Upon removing the next leg all flea organs
function
properly."
Then he removed the last leg. Told flea to jump, and nothing
happened.
He did not want to take a chance, so he repeated the
experiment several
times, and the leg less flea never jumped. So he
wrote the conclusion:
"Upon removing the last leg the flea loses
sense of hearing"
