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A H-bond is an attraction between molecules. It is therefore an intermolecular force, and in fact one of the strongest. Molecules which exhibit H-bonding must contain a hydrogen that is directly bo...
A cyclotron is constructed of two hollow, D-shaped electrodes that accelerate particles; they are opposite each other and there is a small gap between them. A magnetic field is used to bend the particle t...
The Treaty of Versailles (1919) created a difficult and fragile legacy for Germany, with 1923-1928 being a period of intense economic turmoil. Germany experienced significant economic instabilit...
Alleles can be either dominant or recessive. Dominant alleles are always expressed - even if there is only one copy present - that is it can be heterozygous or homozygous. Recessive alleles are only expre...
Dans mon temps libre j'aimes sortir avec mes amis. Nous aimons faire du shopping et aller au cinéma, par exemple, récemment nous sommes allés regarder Frozen 2 au cinéma. Même si le film est généralement ...
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