Standing bodies of water can form in depressions on the surface by both endogenic and exogenic forces, as well as by human activity.
This animation demonstrates the fine molecular structure and mechanism of muscles.
This animation demonstrates the structure and operation of CT scanners.
Neurons transmit electrical signals via chemical and electrical synapses.
Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.
The Suez Canal is an artificial waterway connecting the Red Sea and the Mediterranean Sea.
Ancient Egyptians worshipped a large number of gods and goddesses.
Bacteria are unicellular organisms that have no nuclei and are a few micrometres in length
The Doric, Ionic and Corinthian order of columns are different in size and ornamentation as well.
A mushroom is the fleshy fruiting body of a fungus, made up from hyphae.
Short-lived but extremely powerful tornadoes can cause a great deal of damage.
Comets are spectacular celestial bodies orbiting the Sun.
Unicellular eukaryotes living in freshwaters, capable of feeding autotrophically and heterotrophically.
Human bones are joined together by cartilaginous or synovial joints, sutures or they can fuse together.
This animation demonstrates the anatomy of spiders through the example of a common European species.
Plačiai paplitusi sraigių rūšis, dar naudojama maistui.
This scene summarizes the main organs of the human body.
Icebergs are blocks of frozen freshwater floating in the sea.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.
Olfactory receptors produce electric signals when stimulated by odours.