A helical molecule consisting of alpha-D-glucose units. It is one of the basic components of starch.
A white, crystalline compound which breaks down when exposed to light.
Buildings constructed of prefabricated concrete blocks were widespread in the former Socialist countries.
Atoms within hydrogen halides are bound by covalent bonds, forming polar molecules.
A non-polar amino acid. L and D molecules are mirror images of each other.
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Several political and economic unions have been formed between countries during the past decades.
One of the allotropes of phosphorus.
Halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine, chlorine, bromine, iodine, and astatine.
About 1,500 people were taken to the labor camp also known as ‘the Hungarian Gulag’ during the Rákosi era.
A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.
The simplest aldose, an optically active compound.
The Császár polyhedron is a nonconvex polyhedron with 14 triangular faces.
The defenders of Eger Castle invented a lethal weapon, a water wheel packed with gunpowder and oil, which proved effective against the Ottoman besiegers in...
The recorder is a woodwind musical instrument, a type of fipple flute.
A compound of sulfur often used as a pesticide.
This animation demonstrates various groups of solids through examples.
Narrow streets and colorful houses gave medieval towns a special atmosphere.
One of the 20 amino acids that make up proteins. It contains an aromatic ring as part of its side chain.
One of the 20 amino acids that make up proteins.