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Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Gideon Sundbäck

Written By Ozi on Thursday, April 26, 2012 | 6:21 AM






Gideon Sundbäck (April 24, 1880 – June 21, 1954) was a Swedish-American  electrical engineer. Gideon Sundbäck is most commonly associated with his work in the development of the zipper.
 Background

Otto Fredrik Gideon Sundbäck was born on Sonarp farm in Ödestugu Parish, in Jönköping County, Småland, Sweden. He was the son of Jonas Otto Magnusson Sundbäck, a prosperous farmer, and his wife Kristina Karolina Klasdotter. After his studies in Sweden, Sundbäck moved to Germany, where he studied at the polytechnic school in Bingen am Rhein. In 1903, Sundbäck took his engineer exam. In 1905, he emigrated to the United States.
Career

In 1905, Gideon Sundbäck started to work at Westinghouse Electric and Manufacturing Company in Pittsburgh, Pennsylvania. In 1906, Sundbäck was hired to work for the Universal Fastener Company of Hoboken, New Jersey. Subsequently in 1909, Sundbäck was promoted to the position of head designer at Universal Fastener.

Sundbäck made several advances in the development of the zipper between 1906 and 1914, while working for companies that later evolved into Talon, Inc. He built upon the previous work of other engineers such as Elias Howe, Max Wolff, and Whitcomb Judson.

He was responsible for improving the "Judson C-curity Fastener". At that time the company's product was still based on hooks and eyes. Sundbäck developed an improved version of the C-curity, called the "Plako", but it too had a strong tendency to pull apart, and was not any more successful than the previous versions. Sundbäck finally solved the pulling-apart problem in 1913, with his invention of the first version not based on the hook-and-eye principle, the "Hookless Fastener No. 1". He increased the number of fastening elements from four per inch to ten or eleven. His invention had two facing rows of teeth that pulled into a single piece by the slider, and increased the opening for the teeth guided by the slider.
Drawing of the 1914 patent filing

In 1914, Sundbäck developed a version based on interlocking teeth, the "Hookless No. 2", which was the modern metal zipper in all its essentials. In this fastener each tooth is punched to have a dimple on its bottom and a nib or conical projection on its top. The nib atop one tooth engages in the matching dimple in the bottom of the tooth that follows it on the other side as the two strips of teeth are brought together through the two Y channels of the slider. The teeth are crimped tightly to a strong fabric cord that is the selvage edge of the cloth tape that attaches the zipper to the garment, with the teeth on one side offset by half a tooth's height from those on the other side's tape. They are held so tightly to the cord and tape that once meshed there is not enough play to let them pull apart. A tooth cannot rise up off the nib below it enough to break free, and its nib on top cannot drop out of the dimple in the tooth above it. U.S. Patent 1,219,881 for the "Separable Fastener" was issued in 1917.

The name zipper was created in 1923 by B.F. Goodrich, who used the device on their new boots. Initially, boots and tobacco pouches were the primary use for zippers; it took another twenty years before they caught on in the fashion industry. About the time of World War II the zipper achieved wide acceptance for the flies of trousers and the plackets of skirts and dresses.

Sundbäck also created the manufacturing machine for the new zipper. Lightning Fastener Company, one early manufacturer of the zipper, was based in St. Catharines, Ontario. Although Sundbäck frequently visited the Canadian factory as president of the company, he resided in Meadville, Pennsylvania and remained an American citizen. Sundbäck was awarded the Gold Medal of the Royal Swedish Academy of Engineering Sciences in 1951. Sundbäck died of a heart condition in 1954 and was interred at Greendale cemetery in Meadville, Pennsylvania.

Personal
In 1909, Sundbäck married Elvira Aronson, daughter of the Swedish born plant manager Peter Aronsson.
Legacy

In 2006, Gideon Sundbäck was honored by inclusion in the National Inventors Hall of Fame for his work on the development of the zipper. On April 24, 2012, the 132nd anniversary of Sundbäck's birth, Google changed the Google logo on its homepage to a Google Doodle of the zipper, which when opened revealed the results of a search for Gideon Sundback.
6:21 AM | 0 comments | Read More

West Kirby student named UK's top young scientist

Written By Ozi on Sunday, March 18, 2012 | 8:52 AM

West Kirby Grammar School's Kirtana Vallabhaneni beat 360 other entrants to be awarded the prize at The Big Bang Fair at Birmingham's NEC on Friday.

The 17-year-old was part of University of Liverpool's research project aimed at identifying the harmful cells that cause pancreatic cancer.

She said she hoped her win could help "instil the same kind of passion I have for science in other young people".

The judging panel for the national award, open to 11 to 18-year-olds who completed a science, technology, engineering or maths project, included renowned space scientist Dr Maggie Aderin-Pocock, Nobel Prize winning biochemist Sir Tim Hunt, and the Science Museum's inventor in residence Mark Champkins.

Dr Aderin-Pocock said she was "delighted" with Ms Vallabhaneni's work.

"The country's science and engineering industry has an incredibly bright future ahead of it if Kirtana and her fellow finalists are anything to go by," she said.

"It's these talented individuals who will inspire others to think about science and engineering in a new and exciting light."

Ms Vallabhaneni, who was part of the project team working to isolate cells in the pancreas that can be targeted with chemotherapy, said she was "so happy" with the win.

"Everything that I've worked for over the last year has come together," she said.

"The fact four finalists were female shows that there are strong opportunities for women in science and it proves they don't have to follow convention and stereotypes.

"I'm so passionate about what I do and I hope that with this success, I can instil the same kind of passion I have for science in other young people.

"If I can do it, they definitely can."
8:52 AM | 0 comments | Read More

Portal 2 wins best game at the Bafta Video Game Awards

The first-person puzzle-platform title also won the awards for best design and best story.

Dice's Battlefield 3 secured a prize voted for by the public, as well as for the best online multiplayer game.

Other award winners included Batman: Arkham City for action, Little Big Planet 2 for game innovation and LA Noire for best original music.

Josh Weier, Portal 2's project leader, seemed slightly startled to follow up his team's victory at October's Golden Joystick awards.

"I've had about three hours of sleep and a whole lot of jet lag so I'm going to try to be brief before I go off the rails," he said.

"It was a real pleasure working on this game and it's just amazing to be here tonight and win this award."

Markus "Notch" Persson - the creator of Minecraft - was also honoured with a special award.

His unique environment-building title has generated more than five million sales despite lacking a third-party publisher and marketing campaign.

"Wow," the 32-year old said on taking to the stage.

"This is obviously huge. To have such a serious thing like this [event] celebrating games is very good - who else would do it but the British."

The ceremony included a total of 19 prizes, including four new categories: debut game, online-browser, online-multiplayer and performer.
6:56 AM | 0 comments | Read More

Climate 'tech fixes' urged for Arctic methane

Scientists told UK MPs this week that the possibility of a major methane release triggered by melting Arctic ice constitutes a "planetary emergency".

The Arctic could be sea-ice free each September within a few years.

Wave energy pioneer Stephen Salter has shown that pumping seawater sprays into the atmosphere could cool the planet.

The Edinburgh University academic has previously suggested whitening clouds using specially-built ships.

At a meeting in Westminster organised by the Arctic Methane Emergency Group (Ameg), Prof Salter told MPs that the situation in the Arctic was so serious that ships might take too long.

"I don't think there's time to do ships for the Arctic now," he said.

"We'd need a bit of land, in clean air and the right distance north... where you can cool water flowing into the Arctic."

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Favoured locations would be the Faroes and islands in the Bering Strait, he said.

Towers would be constructed, simplified versions of what has been planned for ships.

In summer, seawater would be pumped up to the top using some kind of renewable energy, and out through the nozzles that are now being developed at Edinburgh University, which achieve incredibly fine droplet size.

In an idea first proposed by US physicist John Latham, the fine droplets of seawater provide nuclei around which water vapour can condense.

This makes the average droplet size in the clouds smaller, meaning they appear whiter and reflect more of the Sun's incoming energy back into space, cooling the Earth.
6:45 AM | 0 comments | Read More