Well....not really. Virtual Bump (VB) is a function of line and the pitch of the ski slope.
Now of course, as we agree, if you go straight we wont have a VB.....so we must be turning, thus turning forces must be there....but I think that is causing the confusion. Think cause/effect......does the VB cause the forces? or do the forces cause the VB?
I said that the VB must have turn forces to exist. So, you want to rename turn with "line" is that it now? You need to make a turn, or you need to take a line that is not straight. Simple. That is what I said and you said no...
Forces and line are not the same thing. Related, yes. But not one in the same.
I didn't say forces and line are the same thing. I said that you were calling lines, turns.... What line you choose to ski, not what force you choose to ski. Different lines will create different forces. I said this because you said that VB is a function of line and pitch of ski slope - not quite accurate and you had responded with a NO to my saying that you needed to turn to have the VB.... line, turn, I don't care what you call it. You need to turn to have VB.
Well the VB causes the forces. The line we ski, determines the forces we feel/generate. I am sure you will agree with that. However we tend to think of the line we ski in a 2-D plane parallel to the ski slope....this is an oversimplification of reality. We actually ski in and our line is actually 3D. We go left/right and down (with maybe some up in certain instances , such as mogul, or big knoll...).
The VB concept explains this, and shows the forces that our line through a 3D world generates.
Give me another break. Your VB is virtual, remember. The VB does not and cannot cause anything. Without the turn forces of gravity and momentum, you would not have any VB. Well that is not true....see below.
It does not cause the forces. The line or turn you ski does determine what forces you will feel/generate. The VB does not create or cause the forces. Can you explain what you mean here further....seems very contradictory. You seem to agree that line determines the forces....VB is just a map of our line in 3D.....but that line...when named VB, doesn't create the forces? Line=turn. Line/turn is part of what determines the forces you will have to deal with. The VB is a description of what will occur as you deal with those forces. How is that?
Your decision to ski a certain line or turn and manage the forces in a certain way cause you to feel the VB in a
certain amount - same with rebound, vaulting and whatever. I think it will help if you just stick to the forces, and what causes them....and not worry about how we manage them until later. Line=turn. Line/turn is part of what determines the forces you will have to deal with. The VB is a description of what will occur as you deal with those forces. Forces caused by gravity, momentum. Where you go, how fast you go, etc. will determine the nature of the forces you will have.
I think that is the exact opposite to Rebound, which suggests the forces cause the rebound....plus the forces come from a 2D view of line...not reality.
I guess you do think rebound is a 2D view. I'm sorry if your view of rebound is 2D. Nobody ever said that. It's not only 3D, but it's actually 4D when you consider it's time element - momentum through space. What causes rebound, I'll repeat again, maybe in terms that you will allow - You have a skier moving through space, on snow choosing a line or turn to make. Because of the laws of our physical world, there will be gravity and momentum mainly and the centripetal/centrifugal forces because of how he uses his skis and his body on the snow. These are turn forces. How he decides to manage these turn forces will determine exactly how much rebound and VB he will experience - and then have to manage that too... What is so 2D about that? Nothing.
What I wrote was is that Rebound has a 2D view of LINE. If I got that wrong...fine....please explain how Rebound or what Rebound teaches us about 3D line, and how it is used, or what insights Rebound offers us in this regard.It's how you see things in 3D or 2D. You like to think of rebound as a 2D line, I think of it as a 3D spatial/time relation. No different insights than with VB, huh?