Learn why the height of Mount Everest changes: the influence of plate tectonics, isostatic rebound from river erosion, and global warming. Explanation of geological processes.
Learn who actually invented the conveyor belt. A history from ancient mechanisms to Henry Ford's revolution, inspiration from the Chicago battles and the first assembly lines.
History of hand washing: from ancient religious rituals and ancient traditions to Semmelweis's scientific discovery in the 19th century. How hygiene became a habit.
Learn which animals have trunks: from elephants and butterflies to fish and worms. Description of structure, functions, and examples from life. Reviews from biologists and zoologists.
Where is Ithaca on the map: a Greek island in the Ionian Sea, a city in the USA, and a settlement in Russia.
Why Russia does not return the treasures of Troy: military trophies, law, politics, and claims of Turkey, Germany, and Greece.
History of many-year attempts by Germany to recover the treasures of Troy from Russia. Treaties, exhibitions, and the positions of the parties.
The History of the Treasures of Troy: from Schliemann's discovery and export to Germany to their relocation to the USSR as a trophy and storage in the Pushkin Museum in Moscow.
The History of Troy: from the legendary city praised by Homer to Schliemann's archaeological excavations and the modern UNESCO World Heritage Site.
The most successful nation in the Olympics: Norway in the 2026 Games, the USA in terms of the total number of medals, and Russia in the historical ranking.
The aesthetics of the horse in art and culture. The image of the horse as a symbol of strength, freedom, power, and loyalty in painting, literature, and mythology.
Learn how water is delivered to the top floor of the Burj Khalifa thanks to a multi-level pump and reservoir system. Unique engineering solutions.
Who finds the Russian language beautiful
Digital Library of Tanzania ® All rights reserved.
US-Great Britain
Sweden
Serbia
Russia
Belarus
Ukraine
Kazakhstan
Moldova
Tajikistan
Estonia
