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Tue Jun 29 05:27pm EDT
Scientists prove Jabulani ball is 'too perfect'
By Ryan Bailey
Along with vuvuzelas, controversial goals and Diego Maradona's overzealous touchline demeanor, the problematic Adidas Jabulani has become a leitmotif of South Africa 2010. The ball was designed by boffins at Loughborough University, England, and every effort was made to give it superior aerodynamics: the panels are stitched internally to create a near-perfect sphere, and Adidas' "Grip'n'Groove" technology is intended to aid consistent flight.
A set of boffins in France, however, have resisted the urge to go on strike long enough to establish that the ball has been giving inconsistent results in the tournament because it is a little too "perfect". AFP reports:
Part of the problem may be that "the stitches of the Jabulani are internal, so the ball resembles a perfect sphere," said Eric Berton, deputy director of the Institute of the Science of Movement in Marseille, France.
"Because of the shape, the time of contact with the foot is reduced. As a consequence, it practically doesn't spin. The ball travels a little less far, and will have a floating and unpredictable trajectory, whether for a striker or a goalkeeper."
I'd question whether the ball travels "a little less far", as keepers have been pinging the Jabulani from box to box with ease at this tournament, but it's unpredictability is certainly not up for debate. Iker Casillas has called it "rotten", Luis Fabiano thinks it's "supernatural", and Diego Maradona believes its uncertain flight has resulted in less long passes.
Wind tunnel tests have been conducted by academics in Japan, Australia and California, and each suggested the ball is a bit rubbish thanks to its tendency to slow down mid-flight. The original wind tunnel tests have also been criticized as they were performed on a stationary ball, and hence they did not simulate how the ball travels during a game.
FIFA, who seem to be in an uncharacteristically apologetic mood this week, has also acknowledged the super-spherical ball has its faults. A very sensitive-sounding Secretary General Jerome Valcke said this weekend:
"We're not deaf. FIFA is not unreceptive about what has been said about the ball."
While the Jabulani has been universally panned, several players have spoken positively about it: Kaka approved of the contact it offers, Petr Cech liked the way it felt, and before he used it to hit the crossbar twice with one shot, Frank Lampard said it was "true to hit". And you'll never guess which German sportswear company those players are sponsored by...
bola jugak yg disalahkan.  |
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CR tu main curi ayam jer pandai.kalau boleh c.ralnaldo ni nak suruh org bagi bola betul2 depan kaki dia...kepala hotak dia main macam tu aku memang benci tengok cr main.kadang2 aku rasa nak gi tampar jer dia. bodoh punya main .geramnya haku semalam rasa nak sepak jer tv. |
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Tue Jun 29 05:27pm EDT
Scientists prove Jabulani ball is 'too perfect'
By Ryan Bailey
Along ...
NIXAR Post at 30-6-2010 16:19 
In malaysia, we have a tendency to blame on chilly weather or our physical. |
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aku baru dpt tau bahawa kat Brazil ada undang2 buruh ckp bila skuad Brazil ada perlwanan majikan WAJIB bagi pekerja mereka tgk game tue. |
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Adakah saintis ini telah 'dibayar' oleh FA England?
Hanya Allah Yang Maha Menngetahuinya.. ...
RedDevils Post at 30-6-2010 04:24 PM 
mungkin jugak sebab bola tu Adidas dan Adidas kompeni Jarman. konspirasi Yahudi neh. |
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player Jepon terlebih laju....sampai bola pun leh tercicir....sib baik telo tak x cicir.... |
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aku baru dpt tau bahawa kat Brazil ada undang2 buruh ckp bila skuad Brazil ada perlwanan majikan WAJ ...
NIXAR Post at 30-6-2010 16:23
Bagi I jadi Menteri Buruh..
Bagi game2 melibatkan Malaysia, memang I wajibkan majikan benarkan pekerja menonton bola, dan lagi afdhol, di sponsor tiketnya oleh majikan..
Dan bila tim Malaysia bungkus,majikan berkuasa arahkan pekerja buat overtime tanpa bayaran..sebagai timbal balas..
Dengan cara itu, penyokong Malaysia akan jadik hooligan...dan akhirnya, player Malaysia jugak yg takut kena catuk dgn hooligan2 ni kalau tak perform...So, in the end, bola Malaysia akan gemilang, cemerlang, dan terbilang....prrrffftghhhhh |
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player Jepon terlebih laju....sampai bola pun leh tercicir....sib baik telo tak x cicir....
pisang69 Post at 30-6-2010 16:30
it's not funny! :re: |
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it's not funny!
Vokuro Post at 30-6-2010 16:34 
Dah check u punya tulang lucu? |
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MN sapa lah ni...:re:
Nak pi menelek jap... |
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CR ni memang terkenal dgn sifat selfish nya..tamak haloba..
Tu pasai masa dlm MU, dia boleh ...
RedDevils Post at 30-6-2010 16:15
hai mod RD... |
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it's not funny!
Vokuro Post at 30-6-2010 16:34 
so what...pondan boncet! :re: |
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Bagi I jadi Menteri Buruh..
Bagi game2 melibatkan Malaysia, memang I wajibkan majika ...
RedDevils Post at 30-6-2010 04:32 PM
player Malaysia x heran kena kutuk pun depa buat muka bodo jah. kendian lepas tu bleh lagi posing dlm majalah Mangga ka kena ligan dek mak janda ka. |
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MN sapa lah ni...
Nak pi menelek jap...
RedDevils Post at 30-6-2010 16:36 
mod reddevils tak nak tgk jarman lawan argentina? |
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MN sapa lah ni...
Nak pi menelek jap...
RedDevils Post at 30-6-2010 16:36
hai doc, lama tak nampak.. dengar cerita kau demam, dah baik ke..
skang ni kau sokong tim mana plak?? |
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Ai lagi prefer bola UMBRO..
Mesra England gitu...
RedDevils Post at 30-6-2010 04:34 PM
ai respek jugak la Calamity James kali nie. |
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Ai lagi prefer bola UMBRO..
Mesra England gitu...
RedDevils Post at 30-6-2010 16:34
umbro...x leh dah...dah ada bau2 amerikan...
kena pakai admiral jela... |
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Post time 30-6-2010 04:19 PM
