Letter: The origins and purposes of National Science Week

Friday 25 March 1994 00:02 GMT

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Sir: Robin Clarke's version of the Second Law of Thermodynamics (Letters, 23 March) is 'off beam'. This law tells us that the rate of heat transfer (measured in watts) increases with increase of temperature difference. Efficiency of heat transfer does not necessarily increase with rising temperature difference.

Personally, I prefer the layman's versions of the Laws of Thermodynamics. First Law: 'You don't get anything for nothing.' Second Law: 'You get damn little for sixpence.'

Yours faithfully,

ANDREW PORTEOUS

Faculty of Technology

The Open University

Milton Keynes

24 March

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Letter: The origins and purposes of National Science Week

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