Franck-Hertz Apparatus II, improved model of the well-known Franck-Hertz Apparatus (FHA001), featuring updated electronics with better stabilization and digital readouts for voltage and current (more robust, easier to read correctly)
Radiation Can Kit, Demonstrate how two identically sized cans absorb and radiate energy differently, contains a lamp assembly with reflector and stand(bulb not included), smooth metal can, one black metal can, and thermometer, Includes activity guide
Radiation Can Set, Two identical sized screw cap metal cans (one smooth metal and other painted dull black) to demonstrate the difference in cooling rates of hot water inside the cans due to different surfaces, cooling rates attributed to thermal radiation emitted by the two cans