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Trivia Quiz 20

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Posted by: forwardone

Quiz 20
Clue 1

I am a famous Inventor.

WHO am I?

Geoff



Posted by: candyisjoy

Nikola Tesla



Posted by: forwardone

No, I`m not Nikola Tesla, the Serbian-American inventor, electrical engineer, and scientist.

Interesting guess though.

Geoff



Posted by: Cashier

Howard Aiken



Posted by: jaukki

Mary Anderson
(Patented the windshield wipers in 1905.)




Posted by: forwardone

No, I`m neither Howard Aiken, or Mary Anderson.

Geoff



Posted by: forwardone

Quiz 20
Clue 2

My invention was based on the science of biomimetics.

WHO am I?

Geoff



Posted by: Cashier

Sir William Grove



Posted by: forwardone

Not Sir William Grove, Cashier.

Geoff



Posted by: jaukki

George de Mestral, the inventor of velcro tape



Posted by: forwardone

I really must get my computer swept for a spy sent from somewhere in Finland.

Well done, jaukki, the correct answer is George De Mestral, who invented Velcro, after getting the idea after a walk in the woods. (See below.)

You could well be headed for that Hall of Fame at this rate.

Please let me have your Egold No. and I`ll get your $5 sent off to you.

And once again thanks for those who joined in this week, I never knew we had such knowledgable members.

Quote:

Velcro® Inventor

George De Mestral got the idea for Velcro® from ****leburs caught in his clothes and his dog’s fur.

During a walk in the woods in 1948, Swiss engineer and outdoorsman de Mestral caught hundreds of burrs in his clothes and his dog’s fur. He wondered how they attached themselves so tenaciously.

De Mestral observed the burrs under a microscope. He saw that each one was covered with hooks that looked like a monster’s mouthful of spiked fangs. These hooks grabbed onto anything that had a loop--clothing fiber, animal fur, or human hair. The common burr was a natural “hook and loop fastener.” De Mestral realized he could create a fabric fastener that acted like the burrs, and so the idea of Velcro® was born.

The Work of George de Mestral

It took de Mestral nearly a decade of trial and error to create a fastener that would cling as well as the burrs. In early trials, the loops were too big for the hooks, or the hooks were too big for the loops. Together with a skilled French weaver, de Mestral eventually learned how to make nearly indestructible burr-like nylon hooks. And the men developed a fabric that the “burr” side would stick to.

Velcro’s® name is derived from the French velours (velvet) and crochet (hook). This magnified view shows the hook and loop strips of nylon that make up Velcro®.

Today Velcro® is everywhere. It’s used in sneakers, backpacks, jackets, wallets, watchbands, and children’s toys. It even turns up in places you wouldn’t expect it. Velcro helped hold a human heart together during the first artificial-heart surgery. NASA uses Velcro® to keep equipment from floating about in U.S. space shuttles, and on the insides of space helmets so that astronauts have a rough surface to scratch their itchy noses and chins.



http://www.engology.com/eng5mestral.htm

Geoff



Posted by: admin

CONGRATULATIONS Mr. Jarkko

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