The dangers of aluminium production

The use of bauxite, which is first processed into alumina and then into aluminium, can be harmful.

Inhaling Helium

What do you think happens if we inhale Helium?

The distribution of food on Earth

Much more food is produced on Earth than is required to feed the population. While most people in developed countries have access to enough food, people in...

The Bohr model

Among the most significant research carried out in the early 20th century focused on the structure of the atom.

Brownian motion

Brownian motion is the continuous random motion of particles mixed in a fluid, caused by their collision with the constantly moving molecules of the fluid.

The fig tree

Learn about the fig tree and its extraordinary fruit and find out about its medicinal properties as well..

Test tutorial 2.

Let’s find out how to use the Test Editor tool.


People have always preferred to settle near rivers. What are the advantages and disadvantages of living by the water?

Southern three-banded armadillo

The southern three-banded armadillo is one of the very few species of armadillos capable of rolling into a complete ball to defend themselves.

Studying the blind spot

Demonstrating a method to determine where exactly the blind spot is in our visual field.

The change in respiratory rate during exercise

Through mild physical exercise, even a trained body doubles the number of breaths it takes within a set amount of time.

The atmosphere

The atmosphere surrounds us everywhere on this planet. We take its presence so much for granted that we often manage to forget it.

The Kalahari Basin

Due to its location, the Kalahari basin has a unique climate, flora and fauna.


Mutualism is a relationship between individuals or populations of different species that is beneficial to both parties.

Africa - The Land of Anthropoids

A film about three great apes found in Africa: the chimpanzee, the bonobo and the gorilla.

The operation of a nuclear power plant

Learn how a nuclear power plant with pressurized water reactors is operated.

Afrika - The geological anatomy of a continent

A video on the geological formation and geographical divisions of Africa.

Homemade firefighting foam

We can produce carbon dioxide gas using sodium hydrogen carbonate and acetic acid. The carbon dioxide puts out the flame.

Test tutorial 3.

Let’s find out how to use the Test Editor tool.

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