The Romans plowed over the city of Carthage and sowed salt into the soil

Did the Romans really sow the lands of Carthage with salt?

Ladybug

The seven-spot ladybug is probably the most best-known of all the ladybirds. Its conspicuous...

labor camp barracks

Several labor camps were established in the communist Eastern Bloc, the existence of which was...

The dangers of aluminum production

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

airplane

Since the advent of air travel, huge distances can be covered fast; today any part of the world...

Paper airplane

Let’s make a paper airplane! How far can you throw it?

gray wolf

The domestication of the wolf began more than 10000 years ago. After humans, it is the most...

archeological excavation

In archeology, excavation is the exposure, processing and recording of archeological finds.

Hungarian gray cattle

This gray, robust cattle breed with characteristic long and curved horns is indigenous to Hungary.

Narrow-gage railway

Narrow-gage railways can be great fun on an excursion. As they chug along, they provide a great...

Archimedes’ principle with gasses

Is there a difference between the weight of a plastic bottle filled with air and the weight of a...

Home-made compass

This experiment shows how to make a home made compass.

Rome (trailer)

Our new videos about the architecture and art of ancient Rome are already available.

South Africa trailer

Our new educational videos about South Africa are coming soon.

Society (trailer)

Our new videos about society are already available.

Nikola Tesla

Legendary inventor, crazy scientist or the greatest genius of all times? Meet Nicola Tesla, one...

Local time and standard time

Life could not work in this accelerated global world if we still used local times. Why, you ask?...

Beyond the lightbulb and the electric outlet

Have you ever given any thought to the origins of the energy your computer or TV uses?

What is the resolution of the human eye?

Is the resolution of our eye comparable to that of today’s top quality films? What is the actual...

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