Electric motors are present in many areas of our everyday lives. Let's learn about the different types.
The inner planets of the Solar System are terrestrial planets while the outer planets are gas giants.
The theatre that has a distinctive shape and excellent acoustics was situated at the side of the Acropolis in Athens.
The Giza Necropolis is the only one of the Ancient wonders still intact.
Human bones are joined together by cartilaginous or synovial joints, sutures or they can fuse together.
The position and acceleration of the head is detected by the inner ear.
An average Egyptian dwelling consisted of regularly arranged rooms.
One of the directors of the circular, open-air Renaissance theatre in London was William Shakespeare.
The apparent movement of the Sun is caused by the Earth's rotation around its axis.
River locks make rivers with great level differences safe for boating.
The step pyramid, built in the 27th century BC, was the first pyramid in Egypt.
Today only one of the Wonders of the Ancient World is still intact: the Pyramids of Giza.
Cannons also appeared in naval warfare.
The Parisian prison became legendary after the Revolution of 1789.
An interesting logical exercise: you have many weights that look the same, you have to find the only one that is different.
Commercial maritime routes of container ships form a global network.
The first supersonic passenger airliner entered service in 1976.
The ancient Roman arena became well-known for the chariot races held here.
The 'wise man' originated in Africa and dispersed throughout most of the continents.
Chameleons are reptiles with an ability to change their colours.