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How the new World Cup ball was designed to not influence the games
popular science ^ | June 18, 2018 | Dyani Sabin

Posted on 06/19/2018 10:41:19 AM PDT by Berlin_Freeper

Every four years there’s a new ball for the World Cup—and every four years players are unhappy with it. Maybe it’s too light and has too much lift, like the 2002 Fevernova. Or maybe it wobbles unexpectedly in the air, making it harder for goalies to predict its motion, like the 2006 Teamgist. Or maybe the ball suddenly changes speed, dropping out of the air and causing accidental handballs, like the 2010 Jabulani.

At the World Cup level, these tiny changes in a ball’s aerodynamics can legitimately impact a team’s performance, so the intense scrutiny of the World Cup ball is perhaps to be expected. “You could argue that it’s the most important piece of equipment in the most popular sport in the world,” says John Eric Goff, Professor of Physics at University of Lynchburg.

Adidas designs every World Cup ball, and on top of being a big seller for them, engineers at the company are constantly a little closer to the perfect ball, Goff says. The ideal soccer ball is a pimple-covered, perfect sphere, its surface just subtly textured enough to keep the airflow around the ball slightly turbulent. Unintuitive as this might sound, the ridges and pimples on the ball make it more aerodynamic, helping the ball to fly through the air more stably.

The Telstar 18, the design for the 2018 World Cup in Russia, is as close to a perfect sphere as you can get.

(Excerpt) Read more at popsci.com ...


TOPICS: Science; Sports
KEYWORDS: soccer; worldcup2018
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To: darkangel82

Argentina barely qualified but still a shock.


101 posted on 06/21/2018 12:50:32 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

FT: Argentina 0-3 Croatia

Argentina still has a small chance to survive, it was said.


102 posted on 06/21/2018 12:52:19 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

-3 Goal Differential will kill the Argies.

I have a feeling that Croatia will be nice to Iceland.


103 posted on 06/21/2018 12:53:45 PM PDT by dfwgator (Endut! Hoch Hech!)
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To: dfwgator
Group C GP W D L F A GD P
1FranceFRA 2 2 0 0 3 1 +2 6
2DenmarkDEN 2 1 1 0 2 1 +1 4
3AustraliaAUS 2 0 1 1 2 3 -1 1
4PeruPER 2 0 0 2 0 2 -2 0
Group D GP W D L F A GD P
1CroatiaCRO 2 2 0 0 5 0 +5 6
2IcelandISL 1 0 1 0 1 1 0 1
3ArgentinaARG 2 0 1 1 1 4 -3 1
4NigeriaNGA 1 0 0 1 0 2 -2 0

104 posted on 06/21/2018 1:16:25 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

If Iceland beats Nigeria, it’s going to be pretty tough for Argentina.


105 posted on 06/21/2018 1:18:16 PM PDT by dfwgator (Endut! Hoch Hech!)
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To: dfwgator; Berlin_Freeper

Messi was mentioned by name maybe three times total. He was mostly a non-factor today.


106 posted on 06/21/2018 1:52:44 PM PDT by darkangel82
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To: Berlin_Freeper

What do Argentina need to do to stay in the World Cup? Group D table, results and fixtures
https://www.thesun.co.uk/world-cup-2018/6547369/argentina-group-d-table-fixtures-results-teams-full-schedule/


107 posted on 06/21/2018 11:19:46 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

“emotionally broken”.
https://www.bbc.com/sport/football/44567336


108 posted on 06/21/2018 11:23:21 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Which teams are out of the World Cup 2018?
https://www.thesun.co.uk/world-cup-2018/6582414/teams-knocked-out-world-cup-group-eliminated/


109 posted on 06/21/2018 11:27:01 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

American teacher to officiate Nigeria, Iceland match
http://punchng.com/american-teacher-to-handle-nigeria-iceland-tie/


110 posted on 06/21/2018 11:32:47 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

We’ll beat Nigeria – Iceland coach
http://dailypost.ng/2018/06/19/world-cup-2018-well-beat-nigeria-iceland-coach/


111 posted on 06/21/2018 11:34:59 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Maradona cries for Argentina
https://www.telegraph.co.uk/world-cup/2018/06/21/diego-maradona-cries-argentina-croatia-world-cup-hammering/


112 posted on 06/21/2018 11:40:05 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Butterflies & Hurricanes
https://youtu.be/yDTICbjVDuI


113 posted on 06/22/2018 12:58:52 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Unbelievable
HT: Brazil 0-0 Costa Rica

Neymar needs to beat the Real Madrid goal keeper.
Probably will with a PK - LoL!


114 posted on 06/22/2018 5:49:29 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Neymar PK - VR - No PK!!


115 posted on 06/22/2018 6:35:12 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Wow 10 minutes to go 0-0.


116 posted on 06/22/2018 6:35:57 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Neymar yellow card for punching the ball in frustration.


117 posted on 06/22/2018 6:37:14 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Brazil late goal 1-0!!!


118 posted on 06/22/2018 6:46:42 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Brazil finally beat the GK, right between the legs too!


119 posted on 06/22/2018 6:47:52 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Neymar goal 2-0 in 98th minute!


120 posted on 06/22/2018 6:53:27 AM PDT by Berlin_Freeper (alea iacta est)
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