Thunder and Lightning — John Stuart Mill — John Shaqi
Thunder and Lightning
John Stuart Mill · en
He prepared two sticks in the form of a cross, with a silk
handkerchief stretched upon them, and with a string attached of
suitable length, and set forth on his mission the first time there was
a storm. He was accompanied only by his son. Fearing the ridicule that
is showered upon failure, he did not take any one else into his
confidence. The kite was set flying. A cloud which looked promising
passed without result. Others followed, and the excitement with which
they were awaited can be imagined.
At first there was no spark and no sign of electricity. Presently some
filaments of the string began to move, as though they had been pushed
out, and a slight rustling could be heard. Franklin now touched the
end of the string with his finger, and instantly a spark was given
out, followed quickly by others. Thus for the first time the genius of
man may be said to have come to grips with lightning, and begun to
learn the secret of its existence.
This experiment took place in June, 1752, and made an immense
sensation throughout the world, and was repeated in other countries,
always with the same success.
A French magistrate, named de Romas, making use of Franklin's idea as
soon as it was known in France, took it into his head to use a kite
with raised cross-bars, and in June, 1753, before the full results of
Franklin's experiments were made public, secured still more remarkable
signs of electricity, having inserted a thread of metal throughout the
whole length of the string, which was 260 metres. Later, in 1757, de
Romas repeating his experiments during a storm, secured sparks of a
surprising size. "Imagine before you," he said, "lances of fire nine
or ten feet in length and an inch thick, and making as much noise as
pistol shots. In less than an hour I had certainly thirty lances of
this length, without reckoning a thousand shorter ones of seven feet
and under." Numbers of people, ladies among them, were present at
these experiments. They were not without danger, as may be imagined;
de Romas was once knocked over by an unusually heavy discharge, but
without being seriously hurt.
Franklin was the first to turn his experiments to practical account,
attaching lightning-conductors to public and private buildings for
their protection, and achieving marvellous results; the lightning
being caught by the metallic stem and following it obediently into the
ground.