Search by term, person or webpage number

ratio of heat and mechanical work. Joule and Energy The immediate use of solar energy is indeed known for quite some time already. This story tells you about the development of the first solar powered

in Antoine Laurent de Lavoisier and respiration By systematic use of highly sensitive scales, Lavoisier developed his keystone assertion, that mass in chemical reactions is unchanged. Lavoisier and

Stories where this aspect plays an important role are: The immediate use of solar energy is indeed known for quite some time already. This story tells you about the development of the first solar powered

change over time an thus the "proof" can also be transformed. To use but two examples: It had been considered for a long time that velocities can be added as vectors - Newtonian physics uses this [...] Stories where this aspect plays an important role are: By systematic use of highly sensitive scales, Lavoisier developed his keystone assertion, that mass in chemical reactions is unchanged. Lavoisier and

elements. Joliot-Curie and artificial radioactivity The immediate use of solar energy is indeed known for quite some time already. This story tells you about the development of the first solar powered

from being straightforward. Eijkman and Beri-Beri The immediate use of solar energy is indeed known for quite some time already. This story tells you about the development of the first solar powered

Stories where this aspect plays an important role are: By systematic use of highly sensitive scales, Lavoisier developed his keystone assertion, that mass in chemical reactions is unchanged. Lavoisier and

Stories where this aspect plays an important role are: The immediate use of solar energy is indeed known for quite some time already. This story tells you about the development of the first solar powered

be improved. For this purpose, specifically designed stories are used as educational materials. These stories are based on historical episodes and structured according to the scheme proposed by Klassen

Parloa, Maria/Liebig’s Extract of Meat Company : One Hundred Ways to use Liebig Company’s Extract of Beef: A Guide for American Housewives, London 1897. Squire, W.Stevens: Liebig’s Extract of Beef and Food