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Marie Curie.

Marie Curie. I INTRODUCTION Marie Curie (1867-1934), Polish-born French chemist and physicist who twice won the Nobel Prize and is best known for her investigations of radioactivity with her husband Pierre Curie. Radioactivity is the spontaneous decay of certain elements into other elements and energy. The Curies shared the 1903 Nobel Prize in physics with a...

2 pages - 1,80 ¤

Charles Darwin.

Charles Darwin. I INTRODUCTION Charles Darwin (1809-1882), British scientist, who laid the foundation of modern evolutionary theory with his concept of the development of all forms of life through the slow-working process of natural selection. His work was of major influence on the life and earth sciences and on modern thought in general. Born in Shrewsbury,...

2 pages - 1,80 ¤

Thomas Edison.

Thomas Edison. I INTRODUCTION Thomas Edison (1847-1931), American inventor, one of the greatest inventors of all time. Edison began to work at an early age and continued to work right up until his death. Throughout his prolific career as an inventor, he was well known for his focus and determination. During his career Edison patented more...

5 pages - 1,80 ¤

Albert Einstein.

Albert Einstein. I INTRODUCTION Albert Einstein (1879-1955), German-born American physicist and Nobel laureate, best known as the creator of the special and general theories of relativity and for his bold hypothesis concerning the particle nature of light. He is perhaps the most well-known scientist of the 20th century. Einstein was born in Ulm on March 14,...

3 pages - 1,80 ¤

Enrico Fermi.

Enrico Fermi. I INTRODUCTION Enrico Fermi (1901-1954), Italian-born American physicist and Nobel Prize winner, who made important contributions to both theoretical and experimental physics. Fermi's most well-known contribution was the demonstration of the first controlled atomic fission reaction. Atomic fission occurs when an atom splits apart (see Atom). Fermi was the first scientist to split an...

2 pages - 1,80 ¤

Benjamin Franklin.

Benjamin Franklin. I INTRODUCTION Benjamin Franklin (1706-1790), American printer, author, diplomat, philosopher, inventor, and scientist. Franklin was one of the most respected and versatile figures in colonial America. An exceptionally well-rounded man, he worked in many fields and succeeded in all of them. He wrote a classic autobiography, made lasting contributions to scientific theory, and devised...

4 pages - 1,80 ¤

Galileo.

Galileo. I INTRODUCTION Galileo (1564-1642), Italian physicist and astronomer who, with German astronomer Johannes Kepler, initiated the scientific revolution that flowered in the work of English physicist Sir Isaac Newton. Galileo's main contributions were, in astronomy, the use of the telescope in observation and the discovery of sunspots, mountains and valleys on the Moon, the four...

4 pages - 1,80 ¤

Jane Goodall.

Jane Goodall. I INTRODUCTION Jane Goodall, born in 1934, British zoologist noted for her studies of chimpanzees in the wild. Her many contributions to scientific and popular literature, coupled with a number of films made about her work with chimpanzees, made Goodall a respected public figure. She further distinguished herself as a wildlife conservationist by introducing...

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Leonardo da Vinci.

Leonardo da Vinci. I INTRODUCTION Leonardo da Vinci (1452-1519), Florentine artist, one of the great masters of the High Renaissance, celebrated as a painter, sculptor, architect, engineer, and scientist. His profound love of knowledge and research was the keynote of both his artistic and scientific endeavors. His innovations in the field of painting influenced the course

3 pages - 1,80 ¤

Stephen Hawking.

Stephen Hawking. Stephen Hawking, born in 1942, British theoretical physicist and mathematician whose main field of research has been the nature of space and time, including irregularities in space and time known as singularities. Hawking has also devoted much of his life to making his theories accessible to the public through lectures, books, and films. Hawking was born...

2 pages - 1,80 ¤

Hippocrates.

Hippocrates. Hippocrates (460?-377?BC), greatest physician of antiquity, regarded as the father of medicine. Born probably on the island of Kos, Greece, Hippocrates traveled widely before settling on Kos to practice and teach medicine. He died in Larissa, Greece; little else is known about him. His name is associated with the Hippocratic Oath, though he probably is not the...

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Edwin Hubble.

Edwin Hubble. Edwin Hubble (1889-1953), American astronomer, who made important contributions to the study of galaxies, the expansion of the universe, and the size of the universe. Hubble was the first to discover that fuzzy patches of light in the sky called spiral nebula were actually galaxies like Earth's galaxy, the Milky Way. Hubble also found the first...

3 pages - 1,80 ¤

Isaac Newton.

Isaac Newton. I INTRODUCTION Isaac Newton (1642-1727), English physicist, mathematician, and natural philosopher, considered one of the most important scientists of all time. Newton formulated laws of universal gravitation and motion--laws that explain how objects move on Earth as well as through the heavens (see Mechanics). He established the modern study of optics--or the behavior of...

5 pages - 1,80 ¤

Blaise Pascal.

Blaise Pascal. I INTRODUCTION Blaise Pascal (1623-62), French philosopher, mathematician, and physicist, considered one of the great minds in Western intellectual history. Pascal was born in Clermont-Ferrand on June 19, 1623, and his family settled in Paris in 1629. Under the tutelage of his father, Pascal soon proved himself a mathematical prodigy, and at the age...

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Louis Pasteur.

Louis Pasteur. I INTRODUCTION Louis Pasteur (1822-1895), world-renowned French chemist and biologist, who founded the science of microbiology, proved the germ theory of disease, invented the process of pasteurization, and developed vaccines for several diseases, including rabies. Pasteur was born in Dôle on December 27, 1822, the son of a tanner, and grew up in the...

2 pages - 1,80 ¤

Ptolemy.

Ptolemy. I INTRODUCTION Ptolemy (AD100?-170?), astronomer and mathematician, whose astronomical theories and explanations dominated scientific thought until the 16th century (see Ptolemaic System). He is also remembered for his contributions to the fields of mathematics, optics, and geography. Ptolemy's actual name, Claudius Ptolemaeus, reflects all that is really known of him: The name 'Claudius' suggests a...

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Nikola Tesla.

Nikola Tesla. I INTRODUCTION Nikola Tesla (1856-1943), Serbian American physicist, electrical engineer, and inventor. Tesla was one of the great pioneers of the use of alternating current electricity. Alternating current electricity changes in strength cyclically over time and is the type of electricity that power companies supply to homes today (see Electricity: Alternating Currents). Tesla invented...

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James Watson.

James Watson. I INTRODUCTION James Watson, born in 1928, American molecular biologist and cowinner of the 1962 Nobel Prize in physiology or medicine. Watson shared the prize with British biophysicists Francis Crick and Maurice Wilkins for their discoveries about the structure of deoxyribonucleic acid (DNA), the molecule that contains the hereditary information for cells. Watson was...

2 pages - 1,80 ¤

Orville Wright.

Orville Wright. Orville Wright (1871-1948), American aeronautical engineer famous for his role in the first controlled, powered flight in a heavier-than-air machine and for his participation in the design of the aircraft's control system. Wright worked closely with his brother, Wilbur Wright, in designing and flying the Wright airplanes. See Airplane. Orville Wright was born in Dayton, Ohio....

2 pages - 1,80 ¤

Wilbur Wright.

Wilbur Wright. Wilbur Wright (1867-1912), American aeronautical engineer who worked with his brother, Orville Wright, to build and fly the first airplane. Wilbur, the elder of the two brothers, was born in Millville, Indiana. He was the third of five Wright children. Their father was a bishop of the United Brethren Church. Wilbur went to high school in...

2 pages - 1,80 ¤

Louis Armstrong.

Louis Armstrong. Louis Armstrong (1901-1971), American jazz, cornet, and trumpet player, singer, bandleader, and popular entertainer. Armstrong overcame poverty, a lack of formal education, and racism to become one of the most innovative and influential musicians of the 20th century, and one of the most beloved entertainers in the world. Armstrong influenced not only trumpeters but, directly or...

2 pages - 1,80 ¤

Johann Sebastian Bach.

Johann Sebastian Bach. I INTRODUCTION Johann Sebastian Bach (1685-1750), German composer and one of the world's greatest musical geniuses. His work marks the culmination of the baroque style. A man of inexhaustible energy and imagination, Bach composed in every form known in the baroque era, except the opera. His enormous output includes works for the organ,

10 pages - 1,80 ¤

Count Basie.

Count Basie. Count Basie (1904-1984), American jazz pianist and bandleader, a leading musician of the swing era (1930s and early 1940s). Basie led one of the foremost jazz big bands, which featured a number of outstanding soloists and arrangers and became an enduring musical institution. The Basie band was famous for its rhythm section, composed of guitarist Freddie...

2 pages - 1,80 ¤

The Beatles.

The Beatles. I INTRODUCTION The Beatles, British rock music group, which revolutionized popular music around the world in the 1960s with their stimulating songwriting and vibrant performances. Although they played together barely ten years, the Beatles have been recognized by many critics and social historians as the most popular and influential music group of the 20th...

2 pages - 1,80 ¤

Ludwig van Beethoven.

Ludwig van Beethoven. I INTRODUCTION Ludwig van Beethoven (1770-1827), German composer, considered one of the greatest musicians of all time. Having begun his career as an outstanding improviser at the piano and composer of piano music, Beethoven went on to compose string quartets and other kinds of chamber music, songs, two masses, an opera, and nine

3 pages - 1,80 ¤

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