Sinusoidal Door

This door by the architectural firm Matharaoo Associates is designed to resemble a sine wave. Now in the home of a diamond merchant in Surat, India, the door measures 5.2m high and 1.7m wide and is made from 40 blocks of teak. Thanks to 160 pulleys and 80 ball bearings, it pushes open easily, despite its weight. More pictures at the link.

Link via Fast Company | Photo: Dinesh Mehta

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I don't really understand using teak for furniture. It's OK for a door or something, but you often see it used for things like chairs - it's too brittle and weak across the grain for that - you can only use it in very dull designs where the grain is always long and in compression. No good at all for chairs that kids lean back on. I know, I've had to put 'em back together. Its oiliness makes it hard to make glued repairs.
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