Itaipu Dam – World’s most powerful dam

Itaipu dam is located on the border of Brazil and Paraguay on Parana River. It is hydro-electric dam constructed and maintained by both Brazil and Paraguay. Its construction started in 1975 and opened in 1984 with a total cost of US $ 20 billion. It has an installed power generation capacity of 14 GW(giga watts). […]

Pentagon – World’s most powerful military building

The Pentagon is headquarters of United States Department of Defense situated near Washington D C, It is also largest military building in the world. It was designed architect George Bergstrom. It was completed and started operations in 1943. It is around 6.5 million sq ft in area. The office building employs around 26000 military, civilian […]

Palm Jumeirah – World’s largest manmade island

Palm Jumeirah in Dubai is world’s largest manmade island in the shape of palm tree. It was developed by Nakheel properties, which is owned by Dubai Government. It has residential villas, apartment, hotels, resorts, amusement parks. It was started in 2001 with land reclamation and first residents moved into apartments in 2006. All the villas […]

Vatican City – Smallest country in the world

Vatican City is a walled city inside Rome, Italy which is smallest country in the world. It is smallest country by area as well as population. It has total area of 110 acres and a population of 842. It is ruled by the Pope. It has come in to existence in 1929 when a treaty […]

International Space Station – Largest space station

International Space Station is a satellite/space station orbiting earth, at an altitude of 400 km above earth’s surface. It is the largest manmade object in space weighing more than 400 tons. It is orbiting earth at a speed of 27,000 km/h. It was constructed with international collaboration with US, Russia, European Union, Canada and Japan. […]

Yuri Gagarin – First man in space

Yuri Gagarin was Soviet pilot and cosmonaut. On 12 April, 1961 he became first human in space when his spacecraft Vostok 1 orbited Earth. He was Colonel in Soviet Air Force. He was selected for space program along with 20 others, who had their rigorous training and Gagarin was selected. Vostok 1 was very small […]

Channel Tunnel – Longest undersea tunnel

Channel Tunnel is undersea rail tunnel linking England and France across English Channel. It is the longest undersea tunnel in the world. Its construction started in 1998 finished in 1994. Its construction cost was UK 4.65 billion pounds. The tunnel is 50 km in length. It connects Folkestone in England with Coquelles, France. The system […]

Great Barrier Reef – Largest structure made by living organisms

Great Barrier Reef is the world’s largest coral reef system. It is situated off the coast of Queensland, Australia. It contains 900 islands spread over 2300 km. The reef is made up of billions tiny coral polyps. It became World Heritage Site in 1981. The reef is the single largest structure made by living organisms. […]

World’s first Mobile Phone

World’s first handheld mobile phone was manufactured by Motorola in 1973. Prior to that mobile phones were bulky and used to be in cars and other vehicles. The first mobile telephone call made by Martin Cooper who is a researcher and executive at Motorola on April 3, 1973 to rival telecom company Bell Labs executive […]

BrahMos Missile – World’s fastest missile

BrahMos is a mixed word of River Brahmaputra of Indian and River Moskva of Russia. It is a supersonic missile developed jointly by India and Russia. It is anti-ship cruise missile which can travel at Mach 3 (3 times the speed of sound 3600 km/h). It can be launched from ships, submarines, aircraft and land […]

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