Originally Posted by razie
that looks about nominal, i.e. sidecut. remember that 21m is not what a flat ski can do - a flat ski will just about go straight.... a nominal 21m radius is what you get when you bend the ski at the nominal sidecut... more or less like above.
I can bend a 23m into a 20m, if I am precise and work hard (i.e. not consistently) but I cannot bend it into an 18m. On the other hand, mine is a WC race ski not a consumer ski, so what do I know...
btw - not bad for 6 days on snow. you have good balance and range of motion and doing that is a good idea as it gets you forward, as you can see from the snow spray.
This is a good discussion and I'm not trying to be argumentative. I'm really trying to understand what you're saying, because I could have missed something...
So you're saying that if you accelerate up at 9.8m/s^2, then you would hit the roof. And I agree that would be the case in zero gravity. But do you agree that we are accelerating down at 9.8m/s^2 just standing up? Sounds weird since we are stationary, but g forces are measured relative to a free-fall. So relative to a free fall, we are moving, hence the 1g even though we're not going anywhere.
So even when we jump up at 9.8m/s^2, we're also accelerating down the whole time due to gravity (-1+1=0). So the net sum of the g forces is 0, but at the take off point in the jump we have gravity (-1) and our acceleration forces from jumping (+1).
For every action, there is an equal and opposite reaction. So in order to jump up at 1g, we first have to exert that force down through our feet to push off. Add that force with gravity and we have 2g's on our feet, if only for an instant.
Not sure if I'm explaining any better, or I'm just repeating myself.
Thanks for the encouragement re my pic. Apparently though, others think I'm totally off balance and a danger to other on the slope (http://www.epicski.com/t/132350/rant-cant-find-runs-to-ski-the-way-i-want-new-skis/30#post_1829441)
Which is weird, because I feel totally in control and balanced. Which isn't to say I couldn't improve my form, but if I were unbalanced and out of control I would be falling and failing my arms around. Which I don't so who knows...
I will defer to you on the ski bending as I really know nothing about it. So you're saying I'm basically stuck into ~20 meter radius carve turns on these skis.