Roll on the 20th June

[legendre]

That effect is only cylindrical, the reason is the electricity travels around the outside of the wire, there is no electrical current in the centre of the wire  "Believe it or not"

"Not."

The current carrying capacity of a wire is a direct function of its cross-sectional area, at least for DC and low-frequency AC currents (what we're dealing with). 'Skin effect' is a real phenomenon, but doesn't come into any significant play at these low frequencies. Archer, if you were correct, you could become a rich man selling high-current wires that only have a fraction of the copper of conventional wires.. hollow conductors formed around inert plastic cores. You could corner the ultralight jumper cable market!

The simple magnet-down-the-pipe trick demonstrates Lenz' law with respect to eddy currents; but eddy currents are by no means only produced in cylindrical conductors. You can observe the same effect if you try to slide a strong magnet quickly across a strip or sheet of copper; a resistance in excess of surface friction is felt.

Just two more major misunderstandings or intentional falsehoods - you pick.

-L

[canuck22]

clanzer

what you may need to look at as you move forward is what is called a cushion, used with pnuematic cyliners,

I suck at drawing but, here is a link to look at

http://news.thomasnet.com/fullstory/450178

peter

to add, if they do not work you will have to use a spear type that slide into a socket and the air that it compresses is displelled thru an orifice

[The Eskimo Quinn]

oh please glassy, i got ten to one on the prototype and it was a bloody pool scoop tube. spare us what you think you know. you forget what the egyptians did not in your math, just as newton did. the weight of the beam being less than the weights themselves at extension. you talk about position and you have no concept of what a lever can do. or when a guy out bush, needs to change a tyre and has left his jack at home, uses a tree branch and a rock i suppose, he must be fat to lift a two ton four wheel drive up at the back, but hey we dont use one and two ton jacks do we?? so that lift must be less than 10 to 1?

spare us from those who can pick up a broomstick and visit the real world

[Glassglue]

Yes Quinn, you shall do as directed by sigmaX 

Lol, too funny.

Of course he's right in that this thing is "sad", and he's made me feel slightly bad that I am just using it for cheap entertainment.

[Glassglue]

Whoops!  There goes the math out the window! Lol.  I think tree branches and rocks are indeed perfect tools to illustrate the level of sophistication displayed here...