Yesterday,
I taught a “grounding and bonding” class to a mix of electricians and solar
photovoltaic system installers. The very
first slide of my Power Point presentation depicted an image of Benjamin
Franklin.
Franklin,
as I explained to the class, was perhaps the first person to recognize that
lightning was the same thing as the static charges snapping from our
fingers. He was also the first person to
reckon that lightning flowed from different points of potential as a kind of
current. He called this current
“electric fire” and reckoned that the current flowed between what he termed as “positive”
and “negative” points.
As a
side note (pun not fully intended), Franklin is also very good to have in your
pocket as a $100.00 bill.
While
the lightning experiments Franklin conducted with kites are thought to be more
mythical than reality, Franklin made serious contributions to the study of
electricity. He invented the lightning
rod, which is still in use today. He was
also the first person to “ground” any sort of true electrical system—the very
reason I launched my class with him.
Ben
Franklin’s system, though simple, proved very effective. Franklin created his system by attaching a
lightning rod to the roof of his house.
He then routed a wire from the rod and fixed the wire to a couple of
bells. From the bells, he dropped the
wire down the side of his home, and then fastened the wire to a rod driven in
the ground. Lightning struck the rod
repeatedly, ringing the bells and showering the home with sparks—but the system
spared the home from any of the damage normally associated with a direct lightning
strike by efficiently discharging the impulse into the earth.
Question
for today: Where did Ben Franklin Go after Lightning Rang His Bells? Please choose the best answer from the
choices listed below.
- ____ “Franklin went to Dairy Queen and
ordered a Mint Oreo Blizzard.”
- ____ “Ben Franklin sailed off to Europe to
bathe with questionable women.”
- ____ “Franklin didn’t go anywhere. He remained home drinking beer by the
pot-bellied stove he invented.”
- ____ “Ben Franklin went to fetch his wife
after she ran out of the house, screaming obscenities.”
Correct answer for the question posted on 11-19-2012: #3 “Genghis Khan jammed it behind a blown
screw-in type fuse to restore power to his Xbox.”
--Mitchell
Hegman
Ben Franklin had 5 scoops of ice cream.
ReplyDeleteWhat a creative way of launching your class!
ReplyDeleteI believe Ben stayed home and drank beer by his pot belly stove. Men wouldn't go chasing their wives back then. He just yelled after her "Get back here woman and fetch me a beer!" LOL
ReplyDelete