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Andy Devis
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Andy Devis

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How Does a Key Work?

The key is inserted into a cylinder called a plug which is prevented from rotating against the fixed outer part called hull because the pins don't line up inside. As the key is inserted, individual spring loaded pins are pushed up until the gap between the key pin and the driver pin reaches the sheer line. Now, the plug can rotate, voila!

For a diagram explaining how this works: http://goo.gl/IxZou
Video source: Animated: How locks works!

H/T to +Art Jonak for the find.

#ScienceSunday #SciSunRR  
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Hi Everyone, Im new member. Nice to meet all you. Love to make friends. :)
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Have him in circles
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Andy Devis

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Should I split 2 ad groups ? one for broad, phrase, modified keywords and one for exact keywords ?
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I would just add a note of caution here.  Don't forget that Google have some very smart guys and gals who have spent a lot of time writing code to match the best term to the search.  While it may seem like a good idea to "force" an exact match, you could easily be forcing yourself to pay too much for a click, or to lose ranking.  Unless you have a really good reason for thinking Adwords isn't doing the best matching automatically, I'd shy away from trying to force it in one direction or another.
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Yeah I love difficult Keywords
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That why I love natural foods
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