Keyword: Lever
- Dvořák L.: Unconventional Measuring Equpiment, Fair 6, Olomouc 2001A construction of three measuring devices. The first one measures the magnetic induction, the second is a LED voltmeter and the third represents scales consisting from a small tractor, which goes up and down a seesaw.
- Machovič Ľ., Baník I.: Not all methods of weighing are equal, Fair 9, Brno 2004Nine unusual simple methods of weighing.
- Polák Z.: Simple Experiments, Fair 7, Praha 2002A few of simple experiments which can be used either as a demonstration during teaching or as a laboratory work (weighing on a sheet of paper, flexible centre impact, interconversion of electrical and mechanical energy, model of a turbine, Foucault currents, alcohol vapour rocket).
- Trna J.: Physics in your pocket, Fair 5, Praha 2000Thirty-five very simple experiments with coins from various parts of physics.