quote:
Originally posted by CookieRevised
quote:
Originally posted by foaly
quote:
Originally posted by CookieRevised
You simply hang a second chain of the same type as the one you had on both the ends. This does _not_ change anything in the system since the chain would pull equally hard on both sides; aka the two opposite forces (one on the left end, the other on the right end) cancel eachother out. But, it is now a lot easier to see in pic4 why there wouldn't be a movement, not even in a frictionless environment; it's just a closed chain hanging on a irregular object; it is never going to move out of itself.
It would actually, you move the centerpoint of the mass of the chain...
You do not add any more mass to one end than on the other end, therefore eventhough the centerpoint might be vertically lower, it stays in the same horizontal position and thus hasn't any influence on where the chain would move.
What you say is that if you add 10Kg on both ends the chain would suddenly behave differently than before. This is not the case.
That is not what I'm saying at all. Because you lower the balance of the chain way below the tumble point, you make it easier for the chain to balance...
What is probably even more important is that by adding the chain you make a circle, this makes the chain have to pull itself down when sliding one way or another...
I'll add a picture in a sec showing how ludicrous it is that you could just add a chain and expect it to be the same situation....
Without the green chain the chain will obviously fall left, with it, it won't...
Although the blue and red chain aren't on the same horizontal height as the examples you gave... The theory behind it is still the same... You can't just connect the chain... it makes it a totally different object, that behaves completely differently