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"PD" <TheDraperFamily@gmail.com> wrote in message
A 'rope' in a pipe can push or pull.
A wire rope in a pipe ever so slightly larger can even do such better.
James M Driscoll Jr
"Spaceman" <[Only registered users see links. ]> wrote in message
news:[Only registered users see links. ]
Then they are not *just* ropes or wires, are they?
On Jun 1, 10:05*pm, BURT <[Only registered users see links. ]> wrote:
(Puppet Sock tries to pull a small part of his desk off by using his
finger tips. He fails.) Electricity is an attractive force. After all,
electricity is what keeps me from pulling fragments off my desk.
(Rubs balloon on cat's fur and sticks it to the wall.) Electricity
is an attractive force. (Etc.)
So, what does that tell us about electrons?
Maybe if you did something more than word salad and tired
inapt analogies, you might learn something. But I'm doubting it.
"Greg Neill" <gneillREM@OVEsympatico.ca> wrote in message
Nope, they are altered versions of ropes of course.
but, the rope can push, is all I stated it for.
Electricity also (rope or not)
could be made to do either.
a push or pull.
I specified US railcars. The knuckle coupler used on
US railcars always has a pushing surface to surface
Consider the chain also. Link to link the links are
in compression, while all the rest of the parts
of the links are in tension.
The link arrangement is prevalent in European railcars.
Greg Neill wrote:
At one of the entrances to the Museum of Science and Industry
in Chicago there stands a display consisting of cables inside
of pipe. The cables are in tension but combined with the pipes
they run through they create a 20 foot tall (perhaps) rigid
structure. Conventional triangulation keeps it from falling
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