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APPARATUS

The apparatus consists of six different metal spokes attached to a disk.  Balls are stuck to the spokes by small equal amounts of wax.  Heat the center disk with the butane burner and the balls fall off in the order of the conductivites of the metals (copper, aluminum, brass, nickel, iron, german silver).

One can use the infrared camera to show the temperature change along the rods.  Set the camera's temperature range anticipating that the rod will get hot.

metal	conductivity (W/mK)
Cu	401
Al	250
brass	109
Ni	91
Fe	80
German silver	25

The five-spoke apparatus has the following metals:

metal	conductivity (W/mK)
Cu	401
Al	250
brass	109
Fe	80
steel	46