"Clive George" wrote in message
o.uk...
On 30/09/2010 22:43, dennis@home wrote:


"Rick Cavallaro" wrote in message
...
On Sep 30, 1:31 pm, Clive George wrote:

I've got a little car, with 6 wheels - 4 straddling the belt, 2 on
the belt.

Can I arrange a drive mechanism such that my little car can go faster
than the conveyor belt? (no engines, stored energy, etc, just simple
mechanical connections)

(actually, this is all quite like the various cotton reel problems
covered in 1st year physics)

Spool video:
http://www.youtube.com/watch?v=E7vcQcIaWSQ

Under the ruler faster than the ruler:
http://www.youtube.com/watch?v=k-trDF8Yldc

Equivalence of reference frames:
http://www.youtube.com/watch?v=9Yt4zxYuPzI



What is that supposed to demonstrate?
that if you pull the centre along it goes faster because of the gearing
between the centre and the edge?
that's all it does show.

Yes, and that's all it does need to show.

So you agree that yes, I can have that drive mechanism, and it can be as
simple as eg having a a 2:1 chain drive such that the wheels on the
conveyor belt go half the speed of those on the road?


That is easy, nobody has argued against it.
The arguments against have always been deflected onto something else in all
the replies in case you had not noticed.

Like the one about the treadmill demonstrating the required effect..
it doesn't, all it shows is you can take power from the belt to drive a prop
with enough thrust to power the cart faster than the belt.
It doesn't show that you can extract energy from wind and use the same
energy to go faster than that wind.


Even the main video doesn't actually show that, it doesn't even show they
are going downwind, the wind vanes show the apparent wind and not the true
wind so they could be going at an angle and the wind vanes would not show
that.


Now with that arrangement, what can you tell me about the forces the
wheels/axles are exerting on a) the road, b) the conveyor belt and c) my
little car? Relative magnitude and direction will do.

What will that prove that has any relevance to going down wind faster than
the wind?
Is this just another deflection attempt?