- De Jong G.: Measuring Planck´s konstant with LED´s, Fair 17, Praha 2012
This article deals with the measurement of Planck’s constant. This time, the measurement is conducted by monochromatic LED’s with different colours.
- Dvořák L.: Unconventional Measuring Equpiment, Fair 6, Olomouc 2001
A 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.
- Hajdusianek A., Hajdusianek I.: Mobile laboratories of the "Academy of Young Explorers", Fair 20, Praha 2015
As part of the “Academy of Young Explorers” project, new experiments have been
developed that can be presented in lower- and upper-secondary schools, as well as
during classes with children. We would like to present the ideas and solutions that we
use. The aim of these experiments is to broaden the pupils’ knowledge of physics and
to convince them that physics is a useful field of science that has much to do with
engineering and the world surrounding us.
- Houfková J., Mandíková D.: Physics in a box, Fair 17, Praha 2012
A box with dimensions of 10.2 cm × 6.2 cm × 2.2 cm is filled with stuff that can be used to demonstrate more than sixty different physics phenomena. This paper presents the contents of this box and selected experiments performed with it.
- Hubeňák J.: LEDs and Lasers, Fair 5, Praha 2000
Measurement of electromotive force of diodes when being illuminated by an overhead projector and a laser, both with theoretical justification of results.
- Hubeňák J.: Modern Photometry – Using a Phototransistor And a Multimeter, Fair 8, České Budějovice 2003
A guide on how to make a simple probe for measuring light intensity using a phototransistor. Procedure for measuring the angular dependence of light bulb and LED light intensity (the outcomes are plotted in polar graphs) and a calculation of a quantum efficiency of LED. Making of a polarizing filter from a mobile phone display, a measurement of light bulb and LED light polarization.
- Hubeňák J.: Superbright LED, Fair 11, Olomouc 2006
In this contribution you learn more about LED and the opportunities in experimenting and research.
- Polák Z.: Experiments with infrared radiation – suggestions, Fair 15, Praha 2010
This contribution is meant for teachers who are looking for ideas for student individual research work. It shows that simple or easily available tools can help one to study the properties of objects that we cannot perceive by senses.