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?

labor camp barracks

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

Paper airplane

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

Air transportation

Air transportation has become the fastest, most reliable and most popular form of travel.

Narrow-gage railway

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

airplane

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

Ladybug

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

gray wolf

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

Public transportation

Public transportation is an indispensable service in big cities. There are means of...

The dangers of aluminum production

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

Air transportation

Air transportation has become the fastest and most reliable way of traveling. Thanks to air...

Hungarian gray cattle

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

Sound localization

Sound localization is an important element in orientation. A sound reaches the ear closest to it...

Archimedes’ principle with gasses

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

archeological excavation

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

The loneliest place on Earth

There is a spot in the open ocean that is 2,688 km away from the nearest land.

Cosmic calendar

If we compressed all the time that has ever passed into a year, how would the history of the...

Home-made compass

This experiment shows how to make a home made compass.

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