A disaccharide formed by the joining of two alpha-D-glucose molecules.
The fortress was a member of the chain of fortifications built to protect against the Ottoman invaders. Its construction started in the 13th century.
Build 3D shapes from unit cubes with the help of several views.
Examining solids formed by the intersection of a cube and a plane.
The Earth is composed of several spherical layers.
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 Benedictine abbey was founded by King Andrew I in 1055.
Panpipes (or pan flutes) are composed of several pipes of gradually increasing length.
The guitar is a plucked string instrument available in various shapes.
The trumpet is a musical instrument with the highest register in the brass family.
Vertical forces can break up layers of rock into fault blocks, which then move vertically along the fracture planes.
This animation demonstrates the different nets of a cuboid and includes a game.
Due to the Earth´s tilted axis, the angle of the Sun's rays at given latitudes is continuously changing during the year.
The harp is one of the oldest plucked string instruments.
This animation demonstrates the equipment of a police patrol car.
The system of circles of latitude and longitude on the globe enable every location on the Earth to be exactly specified.
This animation demonstrates instruments used to examine atmospheric phenomena.
Raw iron is produced from iron ore in iron smelters.
The reproductive system is a series of organs working together for the purpose of reproduction.
A crystalline substance, an extremely important material in the electronics industry (semiconductors, integrated circuits).