13 years ago
something with all SIX(!) simple machines.
So, I said to him, "There are only THREE simple machines. The lever,
the wheel and the inclined plane."
"No," he said, "there are SIX simple machines. The lever, the wheel
and axle, the wedge, the pulley, the screw and the inclined plane."
"Bullshit!" says I, "A pulley is just a wheel (and maybe, when you add
in a rope, it's got a little lever mixed in), a wedge is just an
inclined plane and a screw is just an inclined plane wrapped around a
"Look it up." says the Smart Ass Down The Street.
So, I googled "Simple Machines" and, lo and behold, it appears that
they are teaching kids about these SIX things - the original three
plus the three inbred cousins.
What the fuck?