Solids of revolution

Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.

Cereals

Cereals are species of grasses cultivated for their edible grains.

Aeolian landforms in deserts

Wind, as an external force, plays an important role in shaping deserts.

How do seas shape the Earth's surface?

Seawater, as an external force, plays an important role in shaping coastlines.

Concorde (1969)

The first supersonic passenger airliner entered service in 1976.

The life cycle of vertebrates

The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...

Rivers and landforms

Rivers play an important role in shaping the Earth's surface: they cause erosion as well as carrying and depositing sediment.

The spread of Homo sapiens on Earth

The 'wise man' originated in Africa and dispersed throughout most of the continents.

Marie Curie's laboratory

Marie Curie, the only person to win the Nobel Prize in two different sciences, is probably the most famous woman in the history of science.

Tower of London (16th century)

The intriguing history of this historic castle spans nearly a thousand years.

The flowers of angiosperms

The animation demonstrates the different flower types of angiosperms.

Saint Alexander Nevsky Cathedral (Sofia, 20th century)

Built in Neo-Byzantine style, this Orthodox cathedral is one of the symbols of the Bulgarian capital city.

Galileo Galilei's workshop

Galileo Galilei's scientific achievements contributed greatly to the advancement of physics and astronomy.

Code of Hammurabi

The Code of Hammurabi is the emblem of the Mesopotamian civilization; it contains 282 laws carved into a basalt stele.

Nikola Tesla's laboratory (Shoreham, NY, USA)

This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...

Ocean currents

The Great ocean conveyor is a planet-wide system of ocean currents, which has a great influence on the Earth´s climate.

DNA

Carrier of genetic information in cells.

The New Horizons mission

The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.

Mount Rushmore (USA)

Carved into a granite cliff, the sculptures of the Mount Rushmore National Memorial depict four great United States presidents.

Body parts

This animation introduces body parts on a male anatomical model.

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