Keyword: Torque
- Machovič Ľ., Baník I.: Not all methods of weighing are equal, Fair 9, Brno 2004Nine unusual simple methods of weighing.
- Vícha V.: The Propeller in Lab Exercises, Fair 8, České Budějovice 2003Three ideas for laboratory exercises (Rotation movement, Propeller and a monitor, Draw force of a propeller) and one problematic experimental task (Propeller as a balance wheel) with a simple propeller.