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Screenshot of How the Metre Became the Metre
How the Metre Became the Metre
Screenshot of How time zones are subtly messing with you
How time zones are subtly messing with you
Screenshot of How to derive the area of a circle
How to derive the area of a circle
Screenshot of How to measure a tree using a stick and some simple maths
How to measure a tree using a stick and some simple maths
Screenshot of How to measure the accuracy of latitude and longitude?
How to measure the accuracy of latitude and longitude?
Screenshot of How We’re Redefining the kg
How We’re Redefining the kg
Preview of How wide is No Man’s Land?
How wide is No Man’s Land?
Screenshot of HTML5 Applet to Explore the Unit Circle and Trigonometric Functions
HTML5 Applet to Explore the Unit Circle and Trigonometric Functions
Preview of Identifying the Sides Worksheet
Identifying the Sides Worksheet
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