The Pirates' Code welsh folklore this parallel rule offers exceptional

this parallel rule offers exceptional precision and a touch of traditional nautical style

physical ability or disability

– Philippe Sands

Heavenly Mathematics traces the rich history of spherical trigonometry

this is an indispensable book for anyone planning or dreaming about sailing further afield

The Pirates' Code welsh folklore this parallel rule offers exceptionalPirates have long captured the imagination with images of cutlass wielding swashbucklers, eye patches and buried treasure. But what was life really like on a pirate ship? Piracy was a risky, sometimes deadly occupation, and strict orders were essential for everyone's survival. These 'Laws' were sets of rules that determined everything from how much each pirate earned from their plunder to compensation for injuries, punishments and even the