Tag: science & technology

Statement 1 is correct - The Commonwealth is a voluntary association with no formal charter, treaty, or constitution, based on shared values and historical ties. Statement 2 is incorrect - Membership is not automatic; former British territories must apply and meet criteria (accept rules of membership, recognize the British monarch as symbolic head), and some former colonies (like Myanmar) chose not to join.

Homi Bhabha founded the Tata Institute of Fundamental Research (TIFR) in 1945 with support from J.R.D. Tata. He is also known as the father of the Indian nuclear program. Vikram Sarabhai founded ISRO, and Anil Kakodkar was a later nuclear scientist.

Jagadish Chandra Bose demonstrated plant sensitivity through his pioneering experiments in the early 20th century, using his invention the crescograph to detect plant responses to various stimuli. He showed plants could feel and react to their environment.

A.P.J. Abdul Kalam is known as the Missile Man of India for his pivotal role in developing India's missile technology, including the AGNI and PRITHVI missile series. He was a key figure at DRDO and later became India's President.

Sir M. Visvesvarayya was the chief architect of the Krishnarajasagar dam built across the Kaveri River in Karnataka. He was a renowned civil engineer and his birthday (September 15) is celebrated as Engineers' Day in India.

Meghnad Saha formulated the Saha ionization equation (1920), which explained the presence of spectral lines in stellar spectra based on temperature and pressure conditions. This was a fundamental contribution to astrophysics.

The Nile River, stretching approximately 6,650 km through northeastern Africa, is traditionally considered the world's longest river. The Amazon River is slightly shorter but carries more water. The Yangtze is Asia's longest river, and the Kaveri is a major river in southern India.

Rainbow Bridge in Utah, USA, is the world's largest natural bridge, with a span of 234 feet. It is a sandstone formation created by stream erosion. Howrah Bridge is a man-made cantilever bridge in Kolkata, India. Sun and Moon bridges are not recognized natural bridge formations.

Baily Bridge, built by the Indian Army in 1982 across the Himalayas between India and China, is recognized as the highest bridge in the world by altitude at approximately 5,602 meters (18,379 feet) above sea level. Note that this refers to elevation above sea level, not structural height.

Richard Rhodes wrote 'The Making of the Atomic Bomb,' a comprehensive historical account that won the Pulitzer Prize and National Book Award. Otto Hahn discovered nuclear fission, Einstein developed relativity theory, and Roosevelt was President during Manhattan Project.