 |
|
|
| View previous topic :: View next topic |
| Author |
Message |
K
Joined: 09 Sep 2011
|
| Post subject: |  |
|
| 35forever wrote: | ...
There seems to be a school of "thought", which says you just can't anticipate the rolling Sherrin. To some extent that's true, and it's more true as velocity DE-creases. A quickly bouncing ball is fairly easy to pick up as the bounce will overcome the propensity to move sideways. Once the ball slows down the likelihood of sideways travel & uneven height of bounce increases. But watching the bounce closely & keeping the head low allows a player to more easily track & anticipate the ball's path & bounce.
... |
Hmm... Do people agree with this claim? Should I start (another) poll? |
|
|
|
 |
LaurieHolden 
Floreat Gymnorhina tyrannica
Joined: 22 Feb 2009
Location: Victoria Park
|
| Post subject: | |
|
Gold Coast pre-season training @ Southport FC ~
Players fly up Sunday 13th, training Monday 14th to Friday 11th.
Training times to follow. Football Dep't yet to confirm with front office admin.
Training report to follow.
_________________
"The Club's not Jock, Ted and Gerry" (& Eddie)
2023 AFL Premiers |
|
|
|
|
qldmagpie67
Joined: 18 Dec 2008
|
| Post subject: | |
|
| LaurieHolden wrote: | Gold Coast pre-season training @ Southport FC ~
Players fly up Sunday 13th, training Monday 14th to Friday 11th.
Training times to follow. Football Dep't yet to confirm with front office admin.
Training report to follow. |
I'll be going down to the training once I know the times and will report on same
Hopefully I can upload some video for those interested |
|
|
|
|
35forever
"I feel sick - dada dada dada da"
Joined: 23 Feb 2005
Location: Physical=Sunshine Coast -- Mental=Vic Park
|
| Post subject: | |
|
| K wrote: | | 35forever wrote: | ...
There seems to be a school of "thought", which says you just can't anticipate the rolling Sherrin. To some extent that's true, and it's more true as velocity DE-creases. A quickly bouncing ball is fairly easy to pick up as the bounce will overcome the propensity to move sideways. Once the ball slows down the likelihood of sideways travel & uneven height of bounce increases. But watching the bounce closely & keeping the head low allows a player to more easily track & anticipate the ball's path & bounce.
... |
Hmm... Do people agree with this claim? Should I start (another) poll? |
Which one?
The physics of the Sherrin? Its PHYSICS.
But feel free to take a footy out on the street & start rolling it. I believe it works best on wider streets, and with the sun lower in the sky, so I recommend trying it on St.Kilda Rd, or perhaps Hoddle St. before 9 or after 5 
But seriously, watch the Greening clips on YT, he bends his back remarkably low, and anticipates the ball awful goodly. I can assure you though, with more & more practice it does get easier to follow & anticipate the ball. It can't be perfect because of surface, the individual ball etc. But the whole time I played I was better than most at picking up the ball, probably because my bro & I were kicking the ball every spare moment.
I find myself stunned & slightly sick watching modern players farf around trying to grab the loose pill. Clearly they don't spend NEARLY enough time with the footy. They do so much fitness & other shite they can't take sitter marks & can't kick for shit.
Whats the point!
_________________
"If at first you dont succeed...
... oh who cares, we did it!!!!!"
-me, 2010
"The pies are going to the big dance!"-P.Daicos 2010
Visit My Website! |
|
|
|
|
35forever
"I feel sick - dada dada dada da"
Joined: 23 Feb 2005
Location: Physical=Sunshine Coast -- Mental=Vic Park
|
| Post subject: | |
|
| qldmagpie67 wrote: | | LaurieHolden wrote: | Gold Coast pre-season training @ Southport FC ~
Players fly up Sunday 13th, training Monday 14th to Friday 11th.
Training times to follow. Football Dep't yet to confirm with front office admin.
Training report to follow. |
I'll be going down to the training once I know the times and will report on same
Hopefully I can upload some video for those interested |
Are they not going to the Sunshine Coast this year? 
VERY interested in seeing vid QP, that would be great! And put yer own mug on the tape too, so we know what you look like.
_________________
"If at first you dont succeed...
... oh who cares, we did it!!!!!"
-me, 2010
"The pies are going to the big dance!"-P.Daicos 2010
Visit My Website! |
|
|
|
|
stui magpie 
Prepare for the worst, hope for the best.
Joined: 03 May 2005
Location: In flagrante delicto
|
| Post subject: | |
|
| 35forever wrote: | | qldmagpie67 wrote: | | LaurieHolden wrote: | Gold Coast pre-season training @ Southport FC ~
Players fly up Sunday 13th, training Monday 14th to Friday 11th.
Training times to follow. Football Dep't yet to confirm with front office admin.
Training report to follow. |
I'll be going down to the training once I know the times and will report on same
Hopefully I can upload some video for those interested |
Are they not going to the Sunshine Coast this year?
VERY interested in seeing vid QP, that would be great! And put yer own mug on the tape too, so we know what you look like. |
That may not be a great idea, his missus used to have a portrait of him over the mantlepiece to keep the kids away from the fire. 
_________________
Every dead body on Mt Everest was once a highly motivated person, so maybe just calm the **** down. |
|
|
|
|
BazBoy
Joined: 11 Sep 2014
|
| Post subject: | |
|
In a place called Everton ,a 26 kilometre ride from Wang and the Will Work
For Beer!!! didn’t sorry to say —-friken pub shut
Off to grow a beard to see if that’ll work
_________________
I'm not arguing--just explaining why i am right |
|
|
|
|
E
Joined: 05 May 2010
|
| Post subject: | |
|
| qldmagpie67 wrote: | | LaurieHolden wrote: | Gold Coast pre-season training @ Southport FC ~
Players fly up Sunday 13th, training Monday 14th to Friday 11th.
Training times to follow. Football Dep't yet to confirm with front office admin.
Training report to follow. |
I'll be going down to the training once I know the times and will report on same
Hopefully I can upload some video for those interested |
Do you think we could get some footage of Tommy Langdon (other than when he runs past Dayne Beams of course)?
_________________
Ohhh, the Premiership's a cakewalk ....... |
|
|
|
|
K
Joined: 09 Sep 2011
|
| Post subject: | |
|
| 35forever wrote: | | K wrote: | | 35forever wrote: | ...
There seems to be a school of "thought", which says you just can't anticipate the rolling Sherrin. To some extent that's true, and it's more true as velocity DE-creases. A quickly bouncing ball is fairly easy to pick up as the bounce will overcome the propensity to move sideways. Once the ball slows down the likelihood of sideways travel & uneven height of bounce increases. But watching the bounce closely & keeping the head low allows a player to more easily track & anticipate the ball's path & bounce.
... |
Hmm... Do people agree with this claim? ... |
Which one?
The physics of the Sherrin? Its PHYSICS.
But feel free to take a footy out on the street & start rolling it. I believe it works best on wider streets, and with the sun lower in the sky, so I recommend trying it on St.Kilda Rd, or perhaps Hoddle St. before 9 or after 5
... |
Yep, 35f, the question of the physics of the Sherrin. I'm sure it will bobble about. I just don't know whether the irregularity of the bounce increases as the velocity decreases. (Maybe it does. I just don't know.) Are you saying that your described experiment unambiguously shows that at high speeds the ball is much more straight and predictable in its bounce? (Are you sure that, in what you see, the slowly and quickly moving footballs are in other respects basically the same, so it's not comparing chalk and cheese?)
(I think rolling it on a footy ground is more realistic and convenient than on St. K Rd.) |
|
|
|
|
stui magpie
Prepare for the worst, hope for the best.
Joined: 03 May 2005
Location: In flagrante delicto
|
| Post subject: | |
|
Photos from the first training session of 2019.
http://www.collingwoodfc.com.au/news/2019-01-09/pies-back-on-deck
Based on the above comments, K has clearly never played footy or he'd understand the bounce of the Sherrin.
_________________
Every dead body on Mt Everest was once a highly motivated person, so maybe just calm the **** down. |
|
|
|
|
Tannin 
Can't remember
Joined: 06 Aug 2006
Location: Huon Valley Tasmania
|
| Post subject: | |
|
35forever is perfectly correct, of course. Anyone who has played much footy (even just kick-to-kick in the schoolyard or the street) knows this.
The physics of a slow-bouncing ball and a fast one are quite different, largely because of the limited ability of the ball-grass interface to transmit force. A slow ball tends to grip, where a fast ball tends to slide. In consequence, the slow ball is more prone to changing direction.
For exactly the same reason, a slow bowler (e.g., a leg spinner) gets a lot more sideways movement than a quick, even if they impart equal rotation as the ball leaves the hand. A slow bowler with a bit of loop and drop (again, any good leggie does this) also has the ability to get the pill to bounce high off a good length, or stay low and come straight on. Quicks cant do this, not to the same extent. Why? Because physics.
_________________
�Let's eat Grandma.� Commas save lives! |
|
|
|
|
K
Joined: 09 Sep 2011
|
| Post subject: | |
|
Tannin, if you're sure that in your experience for exactly equivalent balls there is more deviation in one case, then that's fine. But the spinning cricket ball is not a good analogy. In football, it's not grip or spin that's the issue (or, rather, spin is an added issue). It's just the shape of the ball and which part at which angle makes contact with the ground. There's no grip issue there.
If we want dubious cricket analogies, we could claim it's closer to movement off the seam. Is that more or less for faster bowlers? It could be neither...
(In my experience, especially kick to kick you mention, the ball was never bouncing around on the ground at different speeds. Aren't you supposed to kick it to each other in kick to kick? It's definitely possible I cannot remember these things any more, though.) |
|
|
|
|
Tannin
Can't remember
Joined: 06 Aug 2006
Location: Huon Valley Tasmania
|
| Post subject: | |
|
Yes, there is a grip issue, and no it's not just the shape of the ball. When the ball bounces, there is almost always some lateral component to its motion on impact. (The only exception is when the ball is travelling straight down at 90 degrees to the surface - typically for a centre bounce.) Where the ball grips and "resists" this lateral component, you get bigger deviation angles. Where the ball slides (rather than grips) you get less deviation. Basic physics. Same as a cricket ball. (There are difference too, of course, but grip certainly makes a difference to the way either ball bounces.)
_________________
�Let's eat Grandma.� Commas save lives! |
|
|
|
|
simon tonna
Joined: 24 Oct 2013
Location: carindale
|
| Post subject: | |
|
I feel for Jamie E. he was a spectator or non participant for the time trial and left the track earlier than the squad before the break. according to Walsh "just precautionary". no one in the footy world believes that.
where to for J?
my personal believe he is broken and unfixable. but fact he's a super star and has plenty of youth on his side the club has given him another chance in good faith and with this new set back we won't be seeing him until the last 1/4 of the season. here's hoping anyway.
_________________
no second chances |
|
|
|
|
5 from the wing on debut
Joined: 27 May 2016
|
| Post subject: | |
|
| Tannin wrote: | 35forever is perfectly correct, of course. Anyone who has played much footy (even just kick-to-kick in the schoolyard or the street) knows this.
The physics of a slow-bouncing ball and a fast one are quite different, largely because of the limited ability of the ball-grass interface to transmit force. A slow ball tends to grip, where a fast ball tends to slide. In consequence, the slow ball is more prone to changing direction.
For exactly the same reason, a slow bowler (e.g., a leg spinner) gets a lot more sideways movement than a quick, even if they impart equal rotation as the ball leaves the hand. A slow bowler with a bit of loop and drop (again, any good leggie does this) also has the ability to get the pill to bounce high off a good length, or stay low and come straight on. Quicks cant do this, not to the same extent. Why? Because physics. |
Malcolm Marshall didn't know anything about physics so he just moved the ball off the seam as far as a leggie could spin it, but at 145kmh. |
|
|
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
|
The Rules
FAQ
Usergroups
Calendar
Search
Log in
Register
