Coolest .... garage door .... ever

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Isn't this great or what?! So simple, so graceful.

 
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Did you attempt to post a photo?
 
The height of the center of gravity is constant, so opening/closing forces are only due to hinge friction (small). AND, it clears small obstructions such as snow.
 
Really very neat, but it could be rather difficult to motorize.
 
The ingenuity of people never ceases to amaze me