Page 34 of 51
Re: Physics debate
Posted: Wed Jan 11, 2023 3:30 pm
by Stephen
Yes, it is!
No, it isn’t!
I’m laughing so hard, there’s no matching emoji!
Re: Physics debate
Posted: Wed Jan 11, 2023 3:34 pm
by Stephen
Page 34.
Do I hear 35?
Anyone, do I hear 35, 35?
Going once, going twice, …
Re: Physics debate
Posted: Wed Jan 11, 2023 3:40 pm
by jalp
GrimSurfer wrote: ↑Wed Jan 11, 2023 3:19 pm
Leverage requires a lever and a fulcrum.
True, yet I propose that the cable in combination with the boot sole, is effectively, a lever system. It's a springy, bendy kind of lever but a lever none the less.
So, where is the fulcrum in this system? Well, it should be at the ball of the foot. My proposal assumes that the skier is using good form, keeping the BOF down. If the BOF is down, the fulcrum is at the BOF of the boot sole. Remember, a fulcrum is much less a thing, than it is a place.
Re: Physics debate
Posted: Wed Jan 11, 2023 3:44 pm
by Nitram Tocrut
Just saying...
There is a big dump in the forecast for the Ottawa region for the next 2 days so
@GrimSurfer will be able to go skiing and hopefully some of the others guys... you know who you are
Re: Physics debate
Posted: Wed Jan 11, 2023 3:50 pm
by GrimSurfer
Nitram Tocrut wrote: ↑Wed Jan 11, 2023 3:44 pm
Just saying...
There is a big dump in the forecast for the Ottawa region for the next 2 days so @GrimSurfer will be able to go skiing and hopefully some of the others guys... you know who you are
You bet. 30-40 cm coming over the next two days. Sunday/Monday conditions should be pretty darned good. The days after that will also be great because temps are likely to stay below 0C.
Quebec is looking very good in the days ahead too, n’est pas?
Re: Physics debate
Posted: Wed Jan 11, 2023 3:56 pm
by GrimSurfer
jalp wrote: ↑Wed Jan 11, 2023 3:40 pm
GrimSurfer wrote: ↑Wed Jan 11, 2023 3:19 pm
Leverage requires a lever and a fulcrum.
True, yet I propose that the cable in combination with the boot sole, is effectively, a lever system. It's a springy, bendy kind of lever but a lever none the less.
So, where is the fulcrum in this system? Well, it should be at the ball of the foot. My proposal assumes that the skier is using good form, keeping the BOF down. If the BOF is down, the fulcrum is at the BOF of the boot sole. Remember, a fulcrum is much less a thing, than it is a place.
Once you say “spring”, you’re back into a net force deal… input force = output force, ergo net force = 0. Fortunately, you’re using the NASA term “springy, bendy kind of lever”.
I agree that the fulcrum could be the ball of foot. But this would be problematic because we’re back to a force and mass discussion (since all force exerted by the skier based on mass transfer goes through the ball of foot anyway when the heel is raise. So what is the net benefit of the cables, from a force perspective?
These are some of the problems one is confronted with when looking at the cable as a lever, spring, etc.
Re: Physics debate
Posted: Wed Jan 11, 2023 4:06 pm
by Stephen
GrimSurfer wrote: ↑Wed Jan 11, 2023 3:56 pm
Once you say “spring”, you’re …
Guaranteed another round of amusement!
Re: Physics debate
Posted: Wed Jan 11, 2023 4:07 pm
by Stephen
Page 35, page 35, the gentleman in the back, do I hear 35?
Re: Physics debate
Posted: Wed Jan 11, 2023 4:10 pm
by Stephen
For anyone still taking this seriously, dial 1-800-555-555.
Help is available 24 hours a day.
Re: Physics debate
Posted: Wed Jan 11, 2023 4:14 pm
by mca80
Roelant wrote: ↑Wed Jan 11, 2023 3:27 pm
Stephen wrote: ↑Wed Jan 11, 2023 3:24 pm
And in round 15, we have
GrimSurfer wrote: ↑Wed Jan 11, 2023 3:19 pm
Resistance is not the same as leverage.
Against anyone who will step into the ring….
Resistance is futile!
This is futile!
No it isn't!
Sorry, I don't know. I've been assimilated.