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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: Berlin_Freeper
my wife said our daughter wants to show Luna the elephants and things.
Dog Day at Tierpark Zoo
one polar bear was out - sleeping, For scale.

Luna looking at these rat things, pic 2

Luna looking at the pig things, pic 2, pic 3, pic 4

Luna looking at a peacock, pic 2

Luna looking these things.

Luna looking at sheep, pic 2

Luna looking at camels, pic 2

Luna in the sand.

Face paint time, pic 2 (this is how to walk a dog), pic 3 (when my daughter picked the giraffe face-paint the woman said she just added that option the day before and this was the first face she painted with it. Then she said she remembered us from last year. I told her see you next year!)

Feeding time at the Zoo, pic 2, pic 3

BTW there were a lot of people with dogs. I even seen a few with three and four dogs. All dogs were kept on leashes.

What's that behind you?

Luna looking at elephants, pic 2, (this elephant got on the edge and walked it: pic 3, pic 4, (They forgot to feed them?: pic 5, pic 6, pic 7), pic 8

I used my daughter's name a few times to ask her to come and turn a little bit when a pooch came to us and then the owner told me she has the same name as my daughter, pic 2

Luna looking at fish, pic 2, pic 3

Giraffes, pic 2

Luna looking at flamingos

Luna looking at blood thirsty kangaroos (don't let them fool you)

Three Dalmatians

Luna watching the Dog Show (they did impressive tricks including all barking together on command. Which set off a bit of mayhem).

There were a lot of dog merchandise stands.

There is what's called a Castle on the Zoo grounds that you can rent for events, pic 2, pic 3, pic 4

Didn't want my daughter's 1,000 euro 7.5 month old toy poodle puppy dangled over the crocodile pit for a photo, can you see them?

Luna looking at a bear.

Luna looking at Bambi, pic 2, pic 3

BIG THANK YOU to my daughter for being in many of the pictures!
She is an aspiring child model/actress.

Whew that was a lot - now I am hungry like an elephant!

(Hopefully most links are correct. I seriously can't check everything I do.)

181 posted on 06/24/2018 4:06:37 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Nice early England goal 1-0 Panama


182 posted on 06/24/2018 5:08:33 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

PK England 2-0

Well taken by Harry Kane.

New era for England PKs?


183 posted on 06/24/2018 5:22:28 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Very good Lingard goal 3-0.


184 posted on 06/24/2018 5:36:07 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

England 4-0

Blow Out!


185 posted on 06/24/2018 5:39:24 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Another PK,

HT: England 5-0 Panama

Someone here was rooting for Panama to go all the way.

Maybe they won’t play so bad when they qualify after another 40 years.

They lost to Belgium 3-0 in the first game.


186 posted on 06/24/2018 5:48:47 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

FT England 6-1 Panama

https://youtu.be/w-NshzYK9y0


187 posted on 06/24/2018 7:43:50 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

England into World Cup knockout stage as Kane hat-trick leads 6-1 Panama rout

https://www.theguardian.com/football/2018/jun/24/england-panama-world-cup-2018-match-report-harry-kane-john-stones-jesse-lingard


188 posted on 06/24/2018 7:57:37 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Early Senegal goal 1-0 Japan


189 posted on 06/24/2018 8:11:12 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Opposing side war drums sounds good together.


190 posted on 06/24/2018 8:14:53 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Japan 1-1!


191 posted on 06/24/2018 8:33:22 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Senegal 2-1 Japan

This game turned very physical with contact.


192 posted on 06/24/2018 9:28:15 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

WOW Senegal 2-2 Japan


193 posted on 06/24/2018 9:34:28 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper
FT: Senegal 2-2 Japan

Makes the group interesting. Let's see what happens next with Poland v Colombia.

194 posted on 06/24/2018 9:51:57 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper
Luna laying on my chair and watching the World Cup game with me while my wife is picking up our daughter from a Birthday Party, pic 2, pic 3, pic 4, pic 5, pic 6
195 posted on 06/24/2018 9:57:46 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

For part of the Birtday Party they went to the Planetarium, where half the kids got dizzy. My daughter really liked it.


196 posted on 06/24/2018 10:42:37 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Two cheeseburgers incoming. With my last two large bottles of beer. I bought 24 bottles for the WC. Going to need resupply tomorrow.

https://youtu.be/45grpNqw8YQ


197 posted on 06/24/2018 10:52:37 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Colombia score first shortly before halftime 1-0 Poland


198 posted on 06/24/2018 11:41:11 AM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Colombia 2-0 Poland


199 posted on 06/24/2018 12:30:06 PM PDT by Berlin_Freeper (alea iacta est)
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To: Berlin_Freeper

Kurwa!


200 posted on 06/24/2018 12:30:29 PM PDT by dfwgator (Endut! Hoch Hech!)
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