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Old August 3rd 05, 03:51 PM posted to uk.sci.weather
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On the sports bulletin on BBC News24 a few minutes ago the presenter
said that Paul Collingwood had been added to the England cricket squad a
couple of days ago in case the Edgbaston wicket remained wet after the
recent tornado!

Norman.
(delete "thisbit" twice to e-mail)
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England
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Old August 3rd 05, 04:15 PM posted to uk.sci.weather
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On Wed, 3 Aug 2005 15:51:56 +0100, Norman Lynagh
wrote:

On the sports bulletin on BBC News24 a few minutes ago the presenter
said that Paul Collingwood had been added to the England cricket squad a
couple of days ago in case the Edgbaston wicket remained wet after the
recent tornado!


So many cricket/weather myths.

The much missed radio team of Johnson, Arlot, Blowers used to make me laugh by
insisting that high cloud was less likely to produce prolonged rain than low
cloud. Also the complete unscientific nonsense about cloud cover and humidity
affecting whether the ball would swing (move in the air).

Martin




Norman.
(delete "thisbit" twice to e-mail)


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Old August 3rd 05, 05:31 PM posted to uk.sci.weather
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It may be unscientific, but it does happen, regularly, you just have to
like cricket to notice it.

I have been interested in this for many years, wondering if vapour
pressure was the culprit, but vapour pressure can be high on a summers
day with a high dewpoint but no low cloud and the ball doesn't swing at
all. However, on a cool morning with low stratus the ball will move in
the air until the stratus burns off and then not swing for the rest of
the day.
The Australia-Bangladesh odi at Sophia Gardens was a superb example of
this.

I have to admit that I am stumped, for an explanation.

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Old August 3rd 05, 06:20 PM posted to uk.sci.weather
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Felly sgrifennodd :
It may be unscientific, but it does happen, regularly, you just have to
like cricket to notice it.


It's not necessarily unscientific, it's just that science hasn't explained
it yet. There's a scientific explanation of swing at
http://www.soest.hawaii.edu/GG/STUDE...ter/swing.html
where the author concedes that:
blockquote
Despite being widely observed in practice, there is currently no theoretical,
or experimental, evidence for humidity having any affect on the amount of
swing.
/blockquote
(note the first six words).

It will be explained, eventually.

Adrian
--
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Adran Cyfrifiadureg, Prifysgol Cymru, aber.
Aberystwyth, Ceredigion, Cymru ac.
http://users.aber.ac.uk/ais uk
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Old August 4th 05, 12:03 AM posted to uk.sci.weather
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wrote in message
ups.com...
| It may be unscientific, but it does happen, regularly, you just have to
| like cricket to notice it.
|
| I have been interested in this for many years, wondering if vapour
| pressure was the culprit, but vapour pressure can be high on a summers
| day with a high dewpoint but no low cloud and the ball doesn't swing at
| all. However, on a cool morning with low stratus the ball will move in
| the air until the stratus burns off and then not swing for the rest of
| the day.
| The Australia-Bangladesh odi at Sophia Gardens was a superb example of
| this.
|
| I have to admit that I am stumped, for an explanation.
|

As one who follows the coverage on Channel 5, I can report it happens in
baseball as well, but here it seems to mostly affect the ball after it has
left the bat - there being some ballparks where the local conditions seem to
enable the ball to be hit vast distances while others seem to result in
similar hits being caught inside the park. The stadium where Toronto Blue
Jays play has had the embarrassment of staging "weather delays" in spite of
having an overall roof (which takes 20 minutes to close), because they don't
like to close it if at all avoidable as it is claimed having the roof closed
affects how the ball flies. And some of the smaller indoor stadia with air
conditioning used to rouse suspicion that the settings were adjusted
depending on whether the home team were batting or fielding, although the
wave of new ballparks has resulted in most, if not all, of these now having
been replaced.

As for what effect humidity has, the balls the sports in question use are
capable of absorbing water and this affects the nature of the ball's
surface. I would suspect that this change affects the airflow over the
moving ball (remembering that to "swing" a cricket ball normally requires
the surfaces either side of the seam to be of different roughnesses which is
why the bowlers polish one side; or to spin the ball rapidly which is how a
baseball pitcher throws a "curve") in such a way as to make it more
sensitive to the processes which cause the ball to swing in the first place,
which from articles I have read relate to how the flow "separates" and
"rejoins" on passing round the ball.
--
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Old August 3rd 05, 05:22 PM posted to uk.sci.weather
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Default You have to laugh

The tornado apparently missed Edgbaston by only about a mile so
presumably, the cricket ground suffered very heavy rain from the cunim
responsible for the tornado.

But I do agree that cricket commentators often take the most ridiculous
drivel when they "knowledgeably" comment on the weather.

Jack

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Old August 3rd 05, 05:43 PM posted to uk.sci.weather
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Default You have to laugh

Norman Lynagh wrote:
On the sports bulletin on BBC News24 a few minutes ago the presenter
said that Paul Collingwood had been added to the England cricket squad a
couple of days ago in case the Edgbaston wicket remained wet after the
recent tornado!

Norman.
(delete "thisbit" twice to e-mail)


A decent Oklahoma-stylee F5 would have removed the turf - preserving us
from the interminable boredom of the match - or at least providing a
surface to challenge the ozzies

--
Chris (not a cricket fan)
http://www.ivy-house.net
Swaffham, Norfolk
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Old August 3rd 05, 06:40 PM posted to uk.sci.weather
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"Chris" wrote in message


Might:
the interminable boredom of the match


be something to do with the fact you English always lose to the Aussies?

Yes:
- or at least providing a surface to challenge the ozzies


It sounds likely.

Nobody ever watches cricket unless the Brits are winning.

Do they?


--
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Old August 3rd 05, 08:52 PM posted to uk.sci.weather
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Default You have to laugh

Michael Mcneil wrote:

be something to do with the fact you English always lose to the Aussies?


Having worked in Oz a few times with a sister company to the one I work
for, I've realised why the Aussies are so good at sport. They don't do
much else! Right from early school age, they have sport "colleges" and
"clubs" - and when they get to work, they roll up at about 10am after a
jog/gym session and bugger off from work at 3:30ish, via the pool or
cricket club.

--
Chris
http://www.ivy-house.net
Swaffham, Norfolk


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