Google Doodle celebrates Gideon Sundback
Google has paid tribute to Gideon Sundback, the Swedish-American electrical engineer who helped to develop the zipper.
The idea of a zipper may have been dreamed up 20 years before Sundback began working on it, but it was Sundback's design and innovation that perfected the fastening device, turning it into the ubiquitous item we know today.
Sundback, who would have turned 132 today, was born in Smaland in Southern Sweden in 1880, but moved to Germany to study engineering, before relocating to Pennsylvania, USA in 1905.
Sundback made several advance on the zipper between 1906 and 1914, working for companies such as the Universal Fastener Company.
But it was his Hookless Number 2 design that provided a strong enough grip for the fastener to be seen as a reliable replacement for the hook-and-eye fasteners then used on women's boots. It went on to be used throughout the fashion industry; in the flies or trousers, the front of coats and on the plackets of skirts and dresses.
The Hookless Number 2 is essentially the same metal zipper we use today - with interlocking teeth and regular dimples that hold the teeth securely. The dimples mean that single teeth are given very little room to move, effectively stopping the zipper from working itself undone.
Sundback died of a heart ailment in 1954 and was buried at the Greendale cemetery in Meadville, north-western Pennsylvania.
Life & Style blogs
Looking past the search results: Google 2.0 will 'build airports and cities' says report
Jennifer Lawrence nude pictures leaked: Reddit removes 'The Fappening' board dedicated to sharing naked pictures of celebrities
iPhone 'Wave': iOS 8 hoax claims you can charge your iPhone in the microwave - you can't
A bottle of wine a day is not bad for you and abstaining is worse than drinking, scientist claims
iOS 8: how to free up memory on your iPhone or iPad to install the update
Scottish independence referendum: A nation divided against itself
Scottish referendum results: Cross-party consensus collapses amid Tory-Labour spat on the 'English question'
Scottish independence: David Cameron is becoming the 'George Bush of Britain'
Russia freezes Ukraine into submission: Kiev admits country doesn't have enough fuel for winter
Archbishop of Canterbury admits doubts about existence of God
Portuguese academic says British are 'filthy, violent and drunk'
- 1 Scottish referendum: So how about the English now being given a chance to split from England?
- 2 Stamford Hill council removes 'unacceptable' posters telling women which side of the road to walk down
- 3 Kim Kardashian 'nude pictures' leaked on 4chan weeks after Jennifer Lawrence 'The Fappening' scandal
- 4 Matthew Miller: American sentenced to hard labour in North Korea 'wanted to be Snowden II'
- 5 Iranian blogger found guilty of insulting Prophet Mohammad on Facebook sentenced to death
iJobs Gadgets & Tech
£24000 - £30000 per annum + benefits: Ashdown Group: Graduate BI Consultant (B...
£40000 - £55000 per annum: Ashdown Group: Service Delivery Manager (Product Ma...
£50000 - £70000 per annum: Ashdown Group: Cloud Product and Solutions Marketin...
£18000 per annum: Ashdown Group: An established and growing IT Consultancy fir...