Why does aluminum foil barely get hot in the oven but catch fire in the microwave?
It depends on the shape and size of the aluminium foilMicrowave ovens use a wavelength of a few centimetres as I recall; if you have a piece of foil in a circular shape of those dimensions it will form a resonant circuit (like a UHF TV antenna) and there will be an electric current flowing in the loop, heating the foilIf you make a loop with a gap, the voltage created will jump the gap creating an arc and burning the foilSimilar thing with a straight piece half a wavelength long - it resonates like a piano string.
If time was a river of water, you could create an eddy by stirring a stick in it but the flow would only go briefly against the current in the eddy So a time machine could only warp time within the period of time that's on and it would only transport perhaps a photon back a fraction of a nanosecond Basically it's too late to turn on a time machine to go back to this morning and it would have to be a huge time machine.
I've got one in the basement I'm not usingI'll let you have it for $9,000 And I'll give you a good price on the Brooklyn BridgeHonestNo matter what happened, you have to live with itSorryBut that's the way things work around here.
