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I'm not sure your design would actually cause less stress on the wrist - putting the angle in would have the tendancy to cause torque on the wrist except in the (unstable) precisely vertical position. |
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One gust, and the system will tend to seek its minimum energy position, with the umbrella dangling around one's feet! |
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This could be overcome by a suitably positioned counterweight. |
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[+] for describing an open umbrella as
"flared". |
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Nice. I always wanted one in brass (see link). |
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