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                         Many moons ago my mum tried to heat up some plates in the microwave.... 
Actually, that remins me of an argument I had with a physics postgrad-who should have known better. He always made cups of tea in the microwave because he claimed it was more efficient. I argued that both microwave and electric kettle used exactly the same amount of energy to heat the same amount of water-otherwise all sorts of laws would be violated. 
We carried out a crude test-numbers identical. 
                            
                                Edited by unthrottled on 24/06/2011 at 14:25
                             
                            
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