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Technology / Re: When should you replace a microwave?
« on: 24/01/2017 23:09:16 »
With superheating there are 2 confining pressures, the weight of the water and the surface tension around the bubbles. Although these are small they are enough to contain the micro bubbles until the temp is several degrees above boiling point, when slight disturbance can cause them to group and explode.