- 4F10. Entropy
- 4F10.10 Unmixing Demonstration A dye column in glycerine between to concentric rotating cylinders appears to mix and unmix.
- 4F10.20 Balls in a Pan
- 4F10.30 Hilsch Tube
- 4F10.40 Dust Explosion
- 4F30. Heat Cycles
- 4F30.01 Hero’s Engine Steam and LN2 See 1Q40.80
- 4F30.01 Drinking Bird see 4C31.20
- 4F30.10 Stirling Engine Show a working Stirling engine.
- 4F30.31 Steam Engine Model Vintage Steam engine models and lantern slide
- 4F30.40 Refrigerator
- 4F30.60 Nitinol Engine
- 4F30.70 Rubber Band Motor
- 4F30.06 Carnot Cycle Show the heat engine cycle using data taking sensors