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Old January 17th 08, 12:11 PM posted to uk.transport.london
John Rowland John Rowland is offline
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First recorded activity at LondonBanter: Jul 2003
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Default 16/01/2008 - London Lite

Tom Anderson wrote:

PS what do you call the subdivision of a circle that's the part of a
sector between two concentric circles? I'm calling it a block because
of hard disks, but it must have a proper name.


Pie squared?