Hero’s Engine with LN2 – 4F30.01

- Pour LN2 into the plastic drinking bottle.
- Tighten bottle to the cap and PVC pipe assembly.
- Hold the other end of the PVC firmly and lower the bottom of the bottle into a Nalgene container 1/3 full of water.
- As soon as the bottom of the bottle touches the water, LN2 will begin to boil and pressurize.
- The nitrogen gas escaping will cause the bottle to turn at a high rate of speed.

Location: Jacobs B122 - Shelf 285

Stirling Engine – 4F30.15

- A sterling engine is placed over a hot or a cold water bath.
- The engine rotation will reverse when the direction of the heat flow is reversed.

Location: Jacobs B122 - Shelf 273

Video:

Thermoelectric Converter (Pasco) – 4F30.80 

- Place one leg of the Thermoelectric Converter into cold water, the other into hot.
- The fan turns as the converter draws energy from the hot source (typically a 50 degrees C temperature differential is required).

Location: Jacobs B122 - Shelf 160

Video: