The Emperor of the vast Far-Eastern empire was the lord of life and death.
Triglycerides containing unsaturated fatty acids are liquid at room temperature.
A two-stroke engine is a type of internal combustion engine with a cycle of only two (power) strokes.
A species of mollusc widespread in freshwaters.
A string quartet consists of four string players, it appeared in the late 18th century.
This animation shows optical and radiotelescopes used in astronomical observation.
The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.
This animation demonstrates the main sources of soil pollution.
The large white butterfly is a common species of butterflies, through which we demonstrate the anatomy of butterflies.
An introduction to the relief and hydrography of China.
Glands of the endocrine system secrete hormones into the blood.
Moles are small subterranean mammals with modified, spade-like forelegs.
The zygote is the initial cell formed when two gamete cells are joined by means of sexual reproduction.
The cockchafer (or maybug) is a widespread bug in Europe. Its larvae, known as chafer grubs are considered a pest.
The bell is a percussion instrument and an idiophone. Many types of bells exist.
Widespread heterotrophic unicellular organisms with constantly changing shapes
The reflex triggered by the stretching of the thigh extensor muscle is the patellar reflex.
Oases are areas in deserts where water is available.
The battle ended with the overwhelming victory of the Macedonian army over the Persian army led by Darius III.
An ant colony consist of a queen, male ants and workers.