Measurement Follies
'Teachers go to great lengths to make sure students remember to specify their units. It is not enough to say that the answer is 42. Forty-two what? 42 metres? 42 electronvolts? 42 furlongs per fortnight? Without a clear understanding of what units are involved, certain results and claims can be meaningless, misleading or simply expensive."
Not to mention embarassing
http://www.youtube.com/watch?v=WXGbwIkvh38
Biting the hand that feeds IT
