>"Then, with appropriate design, a single device could function as a resistance, a diode, or a transistor, depending on the temperature gradient and the posit

>"Then, with appropriate design, a single device could function as a resistance, a diode, or a transistor, depending on the temperature gradient and the position of the connections." This would be very interesting should it ever be created -- a single electronic component -- that could (potentially!) act like all other electronic components... One question might be how to introduce variable capacitance into such a component, again, should it ever be created...