SciHi Blog

William Friedman and the Art of Cryptology

William Friedman and the Art of Cryptology

On September 24, 1894, US cryptologist William F. Friedman was born. He is considered one of the world’s greatest cryptologists, who helped decipher enemy codes from World War I to World War II. William Friedman – Early Years Friedman was born as Wolfe Frederick Friedman, then part of imperial Russia, now Chisinau, capital of Moldova, as the son of Frederick Friedman, a Jew from Bucharest who worked as a translator and linguist for the Russian Postal Service,…
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Hippolyte Fizeau and the Speed of Light

Hippolyte Fizeau and the Speed of Light

On September 23, 1819, French physicist Armand Hippolyte Louis Fizeau was born. He is well known for his calculation of the speed of light and his suggestion to use length of a light wave be used as a length standard.[4] Hippolyte Fizeau – Early Years Hippolyte Fizeau was born in Paris as the eldest son of Béatrice and Louis Fizeau, who was professor of Pathology at the Paris Medical School. He attended the prestigious…
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William Playfair and the Beginnings of Infographics

William Playfair and the Beginnings of Infographics

On September 22, 1759, Scottish engineer and political economist William Playfair was born. He is generally considered the founder of graphical methods of statistics. William Playfair invented four types of diagrams: line graph, bar chart, pie chart, and circle graph. William Playfair Playfair was born in 1759 in Scotland during the Enlightenment, a Golden Age in the arts, sciences, industry and commerce. He was the fourth son of the reverend James Playfair…
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The Rarest in the World – The Blue Mauritius

The Rarest in the World – The Blue Mauritius

On September 21, 1847, the famous Mauritius “Post Office” stamps were issued by the British Colony Mauritius. They are among the rarest postage stamps in the world and a letter with both stamps on its cover is estimated to be worth more than 4 Million US$. Mauritius Postal Service The first official postal service on Mauritius existed already in 1772.  Since 1810 the island was a British colony, before that it was…
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James Dewar and the Liquefaction of Gases

James Dewar and the Liquefaction of Gases

On September 1842, Scottish chemist and physicist Sir James Dewar was born. He is probably best-known today for his invention of the Dewar flask, which he used in conjunction with extensive research into the liquefaction of gases. James Dewar Background James Dewar was born in Kincardine, Fife, Scotland, in 1842, the youngest of six boys. He lost his parents at the age of 15. He was educated at Dollar Academy and the…
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How Ötzi the Iceman became World Famous

How Ötzi the Iceman became World Famous

On September 19, 1991, two German tourist found a corpse on the east ridge of the Fineilspitze in the Ötztal Alps on the Austrian–Italian border. The corpse turned out to be a well-preserved natural mummy of a man who lived around 3,300 BCE, which has become famous under the name “Ötzi“. The Discovery On 19 September 1991, Ötzi was found by two German tourists in the Ötztal Alps on the Austrian–Italian border,…
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Adrien-Marie Legendre – Providing the Essential Analytical Tools for Mathematical Physics

Adrien-Marie Legendre – Providing the Essential Analytical Tools for Mathematical Physics

On September 18, 1752, French mathematician Adrien-Marie Legendre was born. He is best known for his contributions in number theory, celestial mechanics and elliptic functions. It was in a paper on celestial mechanics concerning the motion of planets (1784) that he first introduced the Legendre Polynomials. Moreover, he served as director of the of the Bureau des Longitudes, standardizing French weights and measures. “All the truths of mathematics are linked to each…
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John Goodricke and the Variable Star of Beta Persei

John Goodricke and the Variable Star of Beta Persei

On September 17, 1764, English amateur astronomer John Goodricke was born. He is best known for his observations of the variable star Algol (Beta Persei) in 1782. He was also first to correctly propose that the distant sun is periodically occulted by a dark body. John Goodricke Background Not much is known about John Goodricke. Clear is only that the astronomer was deaf and passed away very early at the age of…
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Squire Whipple – The Father of the Iron Bridge

Squire Whipple – The Father of the Iron Bridge

On September 16, 1804, US-American civil engineer Squire Whipple was born. He who provided the first scientifically based rules for bridge construction and has become known as the father of iron bridge building in America. The Civil Engineer Squire Whipple was born in Hardwick, Massachusetts in 1804 the son of a farmer. He was exposed to construction sites and materials from early age, since his father designed, built and ran a cotton-spinning…
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The Great Illusion by Jean Renoir

The Great Illusion by Jean Renoir

On September 15, 1894, French film director, screenwriter, actor, producer and author Jean Renoir was born. As a film director and actor, he made more than forty films from the silent era to the end of the 1960s. Jean Renoir, as a representative of the Poetic Realism of the 1930s, created important film classics such as La Grande Illusion (1937) and The Rules of the Game (1939). “To the question, ‘Is the cinema…
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