How about using a cell phone that is not currently switched on for the control? Everything would be the same except for the emitting of heat and microwave radiation.
Not very sure about the block of material which is radiating heat to the same degree - I understand what you're saying but I'm not sure how I could obtain such a thing to measure from. With the assistance of another person, I could measure the temperature of the external cell phone case itself over a period of time where the phone is actively transmitting and then attempt to find another object of the same size and heat it to the same temperature, but starting at the same temperature is no guarantee that the second object would continue to emit heat at the same rate as the mobile phone for the duration of the experiment. I think that one might have to be left to the experts :X Which is a shame, as I'd quite like to do it :D
In other news, Richard found an experiment to calculate the speed of light with marshmallows (http://www.physics.umd.edu/ripe/icpe/newsletters/n34/marshmal.htm).
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timeasmymeasure
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Date: 2006-10-17 07:27 pm (UTC)Not very sure about the block of material which is radiating heat to the same degree - I understand what you're saying but I'm not sure how I could obtain such a thing to measure from. With the assistance of another person, I could measure the temperature of the external cell phone case itself over a period of time where the phone is actively transmitting and then attempt to find another object of the same size and heat it to the same temperature, but starting at the same temperature is no guarantee that the second object would continue to emit heat at the same rate as the mobile phone for the duration of the experiment. I think that one might have to be left to the experts :X Which is a shame, as I'd quite like to do it :D
In other news, Richard found an experiment to calculate the speed of light with marshmallows (http://www.physics.umd.edu/ripe/icpe/newsletters/n34/marshmal.htm).