Who discovered Northwest Passage?
The Northwest Passage is a route of water or a sea in between the Pacific Ocean and Atlantic Ocean. It is surrounded by the North America’s Northern coast. It was… Read more »
The Northwest Passage is a route of water or a sea in between the Pacific Ocean and Atlantic Ocean. It is surrounded by the North America’s Northern coast. It was… Read more »
Cassiopeia is a constellation in the Northern sky. It is identified by its ‘W’ shape in the sky. It has two stars visible to the naked eye such as ρ… Read more »
Whooping cough or Pertussis is a dangerous impartible bacterial disease. It is caused by “Bordetella pertussis” bacteria. It causes satirical and furious cough. It was discovered by Belgian immunologist, Jules… Read more »
Isotopes are alternatives of atoms of a specific chemical element which have distinct numbers of neutrons. They were discovered in 1913 by British physicist, Sir Joseph John “J. J.” Thomson… Read more »
Orion is a famous constellation situated on the celestial equator. It is visible all over the world in the night sky. It is observable by three luminous stars, Alnilam, Alnitak… Read more »
Amazon River is the world’s second longest river located in South America. It flows within the Brazil, Colombia and Peru. Its upper part lies in the Andes Mountains (Maranon River)…. Read more »
Sodium is a silvery-white, highly reactive and soft metal. It is a metallic element. Its chemical symbol is Na and its atomic number is 11. It was abstracted in 1807… Read more »
Francium is a heavy chemical element. Its atomic number is 87 and its chemical symbol is Fr. It is highly radioactive alkali metal. It was discovered in 1939 in France… Read more »
Caesium or cesium is a chemical element. Its chemical symbol is Cs and its atomic number is 55. It is silvery-gold soft alkali metal. It was discovered in 1860 by… Read more »
Rubidium is a chemical element. Its atomic number is 37 and it is denoted by the symbol Rb. It is a silvery-white soft metallic element of the group of alkali… Read more »