Links to other sites which may be of interest
Yale University Library resource links
Wikipedia - Metric system
SI maintenance agency
Conversion archive of nearly every measurement unit
An extensive list of conversion factors
Magic Numbers: Hannah Fry's Mysterious World of Maths
UK tide tables
Fuel prices near me - find cheap fuel
Quality Chain Management System for food producers
Metric Conversion Table
iPhone & Android app
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Pressure
Energy and Power
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