
Can you please stop making a new thread for every one of these you sketch?
have you ever heard of this kind of multiplying pulley or you just know about black holes and god particles
if you show me a link to this multiplying pulley i wont make any other thread about pendulums if not ill keep making them
I don't care if you keep posting these, but quit making new threads for each one. Just add it to the old thread.
My Norton Internet secutity says that the http://www.stupidstuff.org/main/nonsense.htm  site is unsafe.
McAfee did not give me any warning.Originally Posted by Dave Wilson
But stupid stuff could be unsafe. Just look at the OP.
Luxtpm, you need PHUN.
On Phun site you may download older freeware version, that works fine.
oh i already have fun which is pretty cool but:
strings in phun are elastic which makes pulleys work badly
with phun you could make a normal multiplying pulley but not this special multiplying pulley which is actually a 3d concept while phun is limited to 2d
also this concept i draw is very diffcult to build cause the string to be multiplied has to go on some kind of rails
just yesterday i have been studying how angular momentum is the vectorial product of the arm and the force, i disagree with this
if you have a 1 m radius pulley from which you hang 1 kg that pulley wiil produce a torque of 1 kg*m
but if you extend that pulley in the 3rd dimension, depth that pulley now can have multiplication without having changed the radius, just adding it a dimension
so what im studying is wrong there are cases in which angular momentum is the vectorial product of the force by the arm by this multiplication if it has it
You are confusing moment and angular momentum. They are not the same. If you extend the pulley in the third dimension, you did not increase the torque (or moment) about the original axis.Originally Posted by luxtpm
here you have a torque produced by a weight without an arm:
imo physicists generalize too much
That drawing makes no sense whatsoever. What are you trying to show?
oh sorry the left cable is wrapped without depth while the right one with a lot of depth
then theres a ring weight not tight to the cable but that slides in it
basically the ring weight pulls the same on both cables but one has no multiplication while the other has a lot, and the caught is that it has multiplication without varying the radius
so i dont know how but gravity should take the weight down by creating a torque though theres no arm
It won't. Why not wrap a string around a dowel rod, hang a ring from it, and see what happens?
well i did yesterday the experiment at 6 am and the answer is theres no torque
in fact is pretty stablished that torque equals arm and force, no way around this
i think i just need to put rails to this pulley
i did the experiment with plastiline and pencils and with rails the multiplication of the pulley seems unlimited
though the more multiplication also implies a slight growth of the arm i hope not they are not in proportion
« Half Lifes  how good would be this antig method for a plane » 