Adventurers in time

This animation presents the phenomenon of the twin paradox that results from Albert Einstein’s...

Craft guilds

Guilds were powerful forces in the medieval economy. Learn more about them.

Florence, the Renaissance city

Straddling the River Arno and spreading out through its valley, the city has a long history....

Serfdom

Learn about the hardships of serfdom from Thomas' perspective.

Turbine powered by heat

A simple experiment which shows the power of heat.

Renewable sources of energy

Who wouldn’t be familiar with solar-powered calculators or windmills? Let’s have a look at the...

The Hagia Sophia

Now a museum, it used to be one of the most famous places of worship in the world, first for...

Clothing in Turkey

Women’s clothing varies from country to country in the Muslim world. Let’s take a look at the...

How high can we build?

What is the potential maximum height that a man-made building or structure can reach?

Ivy

A popular decorative plant grown to cover porches and climb up walls of buildings.

The California kingsnake

The California kingsnake is one of the most popular species of pet reptiles. It was named after...

Eating healthy

The composition, operation and stamina of the human body and the way one feels greatly depend on...

Rice in a bottle

Lift a bottle full of rice using a few skewers.

Japanese creeper

An ornamental plant often grown to cover porches and walls of houses. It creates fresh and green...

The Berlin Olympics

The 1936 Summer Olympics were held in Berlin, the capital of Germany.

Disaster tourism

Disaster tourism is the act of traveling to a disaster area as a matter of curiosity.

The Eagle’s Nest

The landscape is quite picturesque. Mountains and lakes as far as the eye can see. Location: The...

The king, the wise man and the chessboard

Chess is without a doubt one of the oldest and most popular games. There are a number of...

Judo

The Judo is a type of Japanese martial art, which is characterised by throws, leg techniques and...

Intercontinental urban traffic

Transport planning that involves two distinct parts of a major city is no mean feat. Especially...

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