physics

Carl Sagan’s Cosmos

Carl Sagan’s Cosmos

On November 9, 1934, American astronomer, astrophysicist, cosmologist, and successful author Carl Sagan was born. Carl Sagan is known for his popular science books and for the award-winning 1980 television series Cosmos: A Personal Voyage, which he narrated and co-wrote. Carl Sagan grew up in Brooklyn, New York and received his education in mainly public schools. Even though his parents were no scientists, they have influenced his later career dramatically. Taking him…
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Subrahmanyan Chandrasekhar and the Evolution of Stars

Subrahmanyan Chandrasekhar and the Evolution of Stars

Subrahmanyan Chandrasekhar (1910-1995) On October 19, 1910, Indian-American astrophysicist and Nobel Laureate Subrahmanyan Chandrasekhar was born. He won the 1983 Nobel Prize for Physics together with William Alfred Fowler for key discoveries that led to the currently accepted theory on the later evolutionary stages of massive stars. If you are a frequent reader of this blog, you might have encountered articles about scientists, artists, or explorers you might have never heard of.…
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Murray Gell-Mann and the Quarks

Murray Gell-Mann and the Quarks

Murray Gell-MannImage: World Economic Forum On September 15, 1929, American physicist and Nobel Laureate Murray Gell-Mann was born. He is best known for his work on the theory of elementary particles and introduced the quark model. The quark model is a classification scheme for hadrons, i.e. composite particle made of quarks held together by the strong force (in the same way as atoms and molecules are held together by the electromagnetic force).…
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Luigi Galvani’s Discoveries in Bioelectricity

Luigi Galvani’s Discoveries in Bioelectricity

Luigi Aloisio Galvani(1737 – 1798) On September 9, 1737, Italian physician, physicist and philosopher Luigi Aloisio Galvani was born. He is best known for his discoveries in bioelectricity. In particular, he discovered that the muscles of dead frogs legs twitched when struck by a spark. As a legacy, Galvani’s name survives in the Galvanic cell, Galvani potential, galvanic corrosion, the galvanometer and galvanization. Moreover, his reports also heavily influenced famous author Mary…
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The Exploration of Saturn

The Exploration of Saturn

True color picture of Saturn, assembled from Voyager 2 images obtained Aug. 4, 1981 On August 25, 1981, American space probe Voyager 2 passed Saturn and transmitted stunning pictures of the ring planet. The space probe had been launched by NASA on August 20, 1977 to study the outer Solar System and eventually to push forward into interstellar space. Until today, operating for more than 30 years the spacecraft still receives routine…
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Paul Dirac and the Quantum Mechanics

Paul Dirac and the Quantum Mechanics

On August 8, 1902, English theoretical physicist Paul Adrien Maurice Dirac was born. Dirac is best known for his fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics. “The aim of science is to make difficult things understandable in a simpler way; the aim of poetry is to state simple things in an incomprehensible way. The two are incompatible.” — Paul Dirac Paul Dirac was born in Bristol, Gloucestershire,…
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James Clerk Maxwell and the Electromagnetic Fields

James Clerk Maxwell and the Electromagnetic Fields

James Clerk Maxwell(1831 – 1879) On June 13, 1831, Scottish physicist James Clerk Maxwell was born. His most prominent achievement was formulating a set of equations that united previously unrelated observations, experiments, and equations of electricity, magnetism, and optics into a consistent theory. According to his theory he has demonstrated that electricity, magnetism and light are all manifestations of the same phenomenon, namely the electromagnetic field. This has been called the “second…
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Joseph Fourier and the Greenhouse Effect

Joseph Fourier and the Greenhouse Effect

On March 21, 1768, French mathematician and physicist Jean Baptiste Joseph du Fourier was born. He is probably best known for his work in thermodynamics, where he introduced the concept of the Fourier Analysis, named in honor after him. There, he claimed that every mathematical function of a variable can be expanded to a sum of sines of multiples of that variable. What people most likely don’t know is that Fourier also was the…
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Marie Curie – Truly an Extraordinary Woman

Marie Curie – Truly an Extraordinary Woman

On November 7, 1867, Marie Curie was born, French-Polish physicist, chemist, pioneer in research of radioactivity.  She was the first woman to win a Nobel Prize, is the only woman to win the Nobel prize twice, and is the only person to win the Nobel Prize in two different scientific fields. “One never notices what has been done; one can only see what remains to be done.” — Marie Curie, Letter to her…
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Robert Fulton and the Steamship Company

Robert Fulton and the Steamship Company

On August, 17, 1807, the Clermont began a regular passenger service between New York City and Albany as the very first commercially operating steam boat constructed by Robert Fulton. The Steam Age Revolution From the invention of a new power source or engine up to a vehicle that applies this power source to move forward sometimes is only a small step. But, to become a commercial success, this step might take even…
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