Abstract: The height of air pressure, which is what the terms high and low refer to, plays a key role in the weather. This...
Abstract: Paulin is an outstanding scientist who has ever received the Nobel Prize twice. He laid the foundations for much of o...
Abstract: As early as 1609, Italian astronomer Galileo made his first telescopic observations of the night sky. We know far mor...
Abstract: Every day just before dawn, hundreds of people set out on an arduous hike on a ragged plateau. They come from differe...
Abstract: Over 3,000 years ago, the ancient Egyptians built the finest monuments the world has ever seen. The Great Pyramid, th...
Abstract: More than two thousand years ago, people were already making plans to rise to the sky. The decisive impulse of modern...
Abstract: This is a land of ancient monuments, mysterious structures and strange shrines, a land considered holy both by pagans...
Abstract: Hertzian waves is a kind of invisible light. It can be found everywhere in the nature. And it promotes the intercommu...
Abstract: Ever since people started thinking about the structure of the universe, they have sought to plumb its depths. But it ...
Abstract: In 1895, the German physical scientist Roentgen found a kind of rays by accident. It was a new and previously unknown...
Abstract: For centuries man dreamt of soaring into the air. This was the stuff of myths of legends. And it also preoccupied ser...
Abstract: A huge sandstone rock dominates the Australian outback. At a distance it looks impenetrable — a solid mass of red roc...
Abstract: When people began to know that fertilizers used in the soil could improve the output of the food supplies, they used ...
Abstract: Here between heaven and earth, first lights stream across ancient land, revealing a place of pride and fury, where wa...
Abstract: Over 200 years ago, Benjamin Franklin began to understand the nature of the seas. Practical knowledge of the course a...
Abstract: 408 escalators and 112 lifts take the masses down into this modern “underworld” and bring them back up ag...
Abstract: In 1450 an invention changed the world. In the German city of Mainz, Johannes Gutenberg invented the technique of pri...
Abstract: Scientists had long debated what heat actually was. Heat-related phenomena were observed, and generalized theories we...
Abstract: Margarethe II is a popular monarch, well prepared for her royal duties by comprehensive studies in Copenhagen, Aarhus...
Abstract: There have been no emperors or kings in Germany for many years, but there are still some descendants of the dukes and...