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Types of waves

Waves play an extremely important role in many areas of our lives.

Maglev Trains

One of the most modern means of transport is the Maglev, capable of travelling at speeds of over 400 km/h.

Cấu trúc phân tử Nitơ

Minh họa này mô tả cấu trúc phân tử nitơ với một liên kết sigma và hai liên kết pi giữ các nguyên tử lại với nhau.

Electron configuration of calcium

This animation shows the electron configuration of the calcium atom.

The science of candles

Candles have been used for lighting since ancient times.

Mars Exploration Program

Space probes and Mars rovers examine the structure of Mars and possible traces of life.

Phản ứng dây chuyền

Năng lượng được giải phóng trong quá trình phân hạch hạt nhân có thể được sử dụng cho mục đích dân sự hoặc quân sự.

The development of celestial mechanics

This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.

Kepler space telescope

The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting other stars

Continental drift on a geological timescale

The Earth's continents have been in constant motion during the history of the planet.

Surface tension

Surface tension is the property of a liquid that allows it to obtain the smallest surface area possible.


There are various types of instruments used for measuring temperature.

Aerodynamic lift

Due to their asymmetrical profile of the wings, lift is produced while flying at a high speed.

Submarine operation

Submarines submerge and surface by changing the average density of the hull.

Radial engine

Radial engines are used primarily in aeroplanes and helicopters.

Phases of the Moon

During its orbit around the Earth, the visibility of the Moon's illuminated part constantly changes.

The Doppler effect

It is a well-known phenomenon that the sound of an approaching sound source is higher than that of a receding one.

Pin nhiên liệu

Pin nhiên liệu cung cấp năng lượng điện thân thiện môi trường được tạo ra từ phản ứng giữa oxi và hydro.

Milky Way

The diameter of our galaxy is about 100,000 light years; it contains more than 100 billion stars, one of which is our Sun.

Voyager space probes

The Voyager space probes were the first man-made objects to leave the Solar System. They gather data about outer space and carry information about humanity.

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