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The white shark, commonly called the great white shark, is one of the most iconic and feared creatures of the ocean. With its razor-sharp teeth and menacing appearance, it certainly looks dangerous. But the more we learn about this creature, the more we learn they are not indiscriminate predators, and definitely don't prefer humans as prey. Great white sharks are relatively large, although likely not as large as they might be in our imagination.   T he largest shark species is a plankton eater, the whale shark. Great whites average about 10-15 feet in length, and their maximum size is estimated at a length of 20 feet and weight of 4,200 pounds. Females are generally larger than males. They have a stout body, black eye, a    steel gray back and a white underside.  Great white sharks are widely distributed across the world's oceans. This shark resides mostly in temperate waters in the pelagic zone. They can range to depths over 775 feet. They may

Aristotle (c. 384 B.C. to 322 B.C.) was an Ancient Greek philosopher and scientist who is still considered one of the greatest thinkers in politics, psychology and ethics. When Aristotle turned 17, he enrolled in Plato's Academy. His father was Nicomachus. Aristotle is a towering figure in ancient Greek philosophy , who made important contributions to logic, criticism, rhetoric, physics, biology, psychology, mathematics, metaphysics, ethics, and politics. He was a student of Plato for twenty years but is famous for rejecting Plato's theory of forms.   According to Aristotle , human beings have a natural desire and capacity to know and understand the truth, to pursue moral excellence, and to instantiate their ideals in the world through action. Aristotle espouses the existence of external objective reality.   The Greek philosopher Aristotle (384-322 B.C.) made significant and lasting contributions to nearly every aspect of human knowledge, from logic t

Chandrasekhara Venkata Raman (/ˈrɑːmən/; 7 November 1888 – 21 November 1970) was an Indian physicist who made groundbreaking works in the field of light scattering , he discovered that when light traverses a transparent material, some of the deflected light change wavelength and amplitude.   Chandrasekhara Venkata Raman was born at Tiruchirappalli in Southern India on November 7th, 1888. His father was a lecturer in mathematics and physics so that from the first he was immersed in an academic atmosphere. C.V. Raman was awarded the 1930 Nobel Prize in Physics for his discovery of the Raman effect , in which light that passes through a material is scattered and the wavelength of the scattered light is changed because it has caused an energy state transition in the material's molecules.   Raman effect , change in the wavelength of light that occurs when a light beam is deflected by molecules. When a beam of light traverses a dust-free, transparent sample of a chemica

  Leonardo da Vinci was a Renaissance painter, sculptor, architect, inventor, military engineer and draftsman — the epitome of a true Renaissance man. Gifted with a curious mind and a brilliant intellect, da Vinci studied the laws of science and nature, which greatly informed his work.   da Vinci (1452-1519) was born in Anchiano , Tuscany (now Italy ), close to the town of Vinci that provided the surname we associate with him today. Leonardo da Vinci was an artist and engineer who is also   best known for his paintings, notably the Mona Lisa (c. 1503–19) and the Last Supper (1495–98). His drawing of the Vitruvian Man (c. 1490) has also become a cultural icon.     As an engineer, Leonardo conceived ideas vastly ahead of his own time, conceptually inventing the parachute, the helicopter, an armored fighting vehicle, the use of concentrated solar power, a calculator, a rudimentary theory of plate tectonics and the double hull.   Leonardo da Vinci began painting the

Rachel Carson was an American biologist well known for her writings on environmental pollution and the natural history of the sea. Her book, Silent Spring (1962), became one of the most influential books in the modern environmental movement and provided the impetus for tighter control of pesticides, including DDT.   Carson is hailed as one of the most important conservationists in history and is recognized as the mother of modern environmentalism. She challenged the use of man-made chemicals, and her research led to the nationwide ban on DDT and other pesticides. She  alerted the world to the environmental impact of fertilizers and pesticides. Her best-known book, Silent Spring, led to a presidential commission that largely endorsed her findings and helped to shape a growing environmental consciousness.   Carson taught at the University of Maryland for five years before joining the U.S. Fish and Wildlife Service in 1936. Her first book, Under the Sea-Wind (1941),

Augusta Ada King, Countess of Lovelace (née Byron; 10 December 1815 – 27 November 1852) was an English mathematician and writer, chiefly known for her work on Charles Babbage's proposed mechanical general-purpose computer , the Analytical Engine. She   is often considered to be the first computer programmer! Lovelace was the first to recognise the full potential of a 'computing machine', suggesting it had applications beyond pure calculations.   (In 1843 Ada Lovelace wrote in her notes for a translation of a French article about the Analytical Engine how the machine could be used to follow a program to calculate Bernoulli numbers. For this, she has been called the first computer programmer.   Ada Lovelace is considered the first computer programmer. Even though she wrote about a computer, the Analytical Engine, that was never built, she realized that the computer could follow a series of simple instructions, a program, to perform a complex calculation.  

knowledge want: GREAT SCIENTISTS OF WORLD - ARCHIMEDES : Archimedes , (born c.  287 bce, Syracuse, Sicily [Italy]—died 212/211 bce, Syracuse), the most-famous mathematician and inventor in ancien...