This animation shows optical and radiotelescopes used in astronomical observation.



telescope, optical telescope, refracting telescope, reflecting telescope, Galilean telescope, Keplerian telescope, Newtonian telescope, Nasmyth telescope, Cassegrain telescope, barrel, finderscope, eyepiece, tripod, converging lens, camera lens, diverging lens, lens, mirror, detection, optics, technology, physics

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Hubble Space Telescope

The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.

Kepler space telescope

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


Observatories are often built at high elevations to minimise the effects of atmospheric turbulence

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.

Galileo Galilei's workshop

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

Kepler´s laws of planetary motion

The three important laws describing planetary motion were formulated by Johannes Kepler.

Moon radar experiment (Zoltán Bay, 1946)

In 1946 a Hungarian scientist was the first person to detect radar echoes from the Moon.

Optical instruments

A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.

The development of celestial mechanics

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

The first voyage of James Cook

James Cook's legendary journey around the world proved to be enormously valuable for science.

The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.

The mechanism of vision

The curvature of the lens of the eye changes when we look at a distant or at a near object, to ensure a sharp image.

Types of stars

This animation demonstrates the process of star development for average and massive stars.

Vision correction

Concave and convex lenses are used for the correction of short-sightedness and far-sightedness.

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.

How does it work? - Digital camera

This animation demonstrates the structure and operation of digital cameras.

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