online slot bonus codes superbahis mobil casino new casino monticello ny how can i make extra money online top rated online slot machines best deals black friday 2018 amazon infinite money pokemon fire red codebreaker code
trucchi per vincere slot online real money slots online usa monopoly slots hack android no survey
betting sites reviews uk pai gow tiles online casino
casino pour francais avec bonus sans depot casino bonus strategy casino night fancy dress ideas wow character equipment slot numbers best smart tv black friday uk best loan deals for bad credit
slots forever uk mobile network market share 2018
unlimited money pokemon fire red cheat online microgaming casino bonuses best mobile sim only deals 2018
slot machine betting strategies fruit machine master key casinos with single 0 roulette funattica casino slots casino bonus rules coolcat casino bonus codes 2018 pasarea spin ep 2 online
casino 93 jackpot nevada kann man mit online casino geld verdienen casino zollverein gmbh essen roulette wheel meaning diamond dog slot machine for sale
neue online casinos playtech 999 casino online lucky red casino deposit bonus codes sony spin online ao vivo

Sunday, October 07, 2012

More thoughts on Drift

roulette gratis gioco online maths times tables for kids casino boats in jacksonville florida chumash casino loose slots super bet palace casino no deposit bonus no deposit casino on mobile
Here's some thoughts on Drift over at a forum I started

I don't know what it is Gundalf: perhaps something to do with the 2-piece balls Sean uses for practice. The seam is quite prominant. Maybe the ball surface has other characteristics that make it behave that way.

Dave, you'll probably get your head around it more if you consider that the Magnus effect is at its maximum when the ball is moving through the air perpendicularly to the axis of rotation.
I've recently been writing about drift and it'll be here with images and diagrams hopefully illustrating what's going on with http://www.mpafirsteleven.blogspot.co.uk/2014/12/wrist-spin-bowling-leg-break.html

30th Dec 2015


Taken at one extreme (top spin) the axis of rotation is horizontal and across the pitch, so the ball is being forced down throughout its flight.

At the other extreme of pure side spin, the axis of rotation is along the pitch and the Magnus effect is not active while the ball is moving essentially parallel to that axis of rotation (ie the first "flat" portion of flight). It is only when the downward component of the flight starts to increase that the magnus effect comes into play in this case. As the vertical speed of the ball increases in the later part of the flight, the ball will start to move towards the leg side (for a RH leggie) because the ball is now moving perpendicularly to the axis of rotation more quickly.

For a 45 degree angle on the seam, there is a component of the Magnus effect working throughout the flight of the ball, but it's higher on the downward path of the delivery than the initial upward and flat path.

Because the downward path of the flight is so vital for drift on a side spinning and 45 degree spinning ball, it's imperitive that a good loopy flight is offered. Without that initial upward and subsequent flatter component to the delivery, there will be no late drift in the flight (there may be constant drift, but it won't be significant nor particularly tricky to handle).

It all comes down to the flow of air ACROSS the axis of rotation.

To get drift from a ball that will also turn off the pitch, there must be a loopy flight so that downward speed has a chance to increase during the delivery. It's the change in vertical speed that alters the drift in the air for a side-spinning delivery.

Cheers,
Graeme


Read more:
http://spin-bowling.boards.net/index.cgi?board=discussions&action=display&thread=22&page=1#ixzz28byO84YA

I'm still struggling to get my head round drift, but this explanation is quite interesting. The interesting thing I picked up on was the dynamics of the drop from the trajectory and the fact that the 'Drop' aspect adds a different dimention. I've not got time at the minute to try and digest the info and make sense of it, but I may come back to it at some point later.

Check out my other blog here - this is all about Leg-spin bowling and nothing else. Double click on the image below.
http://www.legspinbowling.blogspot.co.uk/
 
 
jocuri slot gratis casino slot machine how to win strategy lucky casino cool cat casino target black friday 2018 ipad mini 3 top 5 automobile companies in usa
casino slot games 777 online casino bluebook cirrus casino no deposit bonus blog
high 5 casino slot machine best paying slots in florida casino games no deposit bonus cash casino red deer
Newer Post Older Post Home vera john casino bonus no deposit bonus us casino red garter casino wendover utah horizon casino bus denver myvegas slots on android slot machine odds casino bugs to riches slot game
biggest telecom companies in usa theater casino zug tickets casino online games real money
cash casino calgary menu new casino sydney
sun and moon slot app for android spinning ringe online shop
order strictly slots magazine online casino no deposit bonus 2018 uk mobile casino no dep bonus 2018 giochi gratis online casino gladiator
casino monte carlo best mobile under 20000 october 2018
baccarat les larmes sacrees de thebes geant casino online shopping