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economics
Ernst Engel and Engel’s Law of Microeconomics

Ernst Engel and Engel’s Law of Microeconomics

Tabea Tietz
On March 26, 1821, German statistician Ernst Engel was born. Engel was head of the Prussian Statistical Bureau (1860-82) and is best known for the “Engel curve,” or Engel‘s law, which states that the proportion of expenditure on food will fall as income rises, i.e. food is a necessary good. He who attempts to draw any conclusion whatever as to the nation’s wealth or poverty from the mere fact of a favorable…
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philosophy
Guillaume Postel – French Linguist and Religious Universalist

Guillaume Postel – French Linguist and Religious Universalist

Harald Sack
On March 25, 1510, French linguist, astronomer, Cabbalist, diplomat, professor, and religious universalist Guillaume Postel was born. A universal and cosmopolitan spirit, Postel is the most characteristic French representative of the Christian Kabbalah. “Ibn Sina says more in one or two pages than does Galen in five or six large volumes” – Guillaume Postel Guillaume Postel – From Politics to Philology Postel was adept at Arabic, Hebrew, and Syriac and other Semitic languages, as…
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mathematics
Joseph Sauveur and the Science of Acoustics

Joseph Sauveur and the Science of Acoustics

Harald Sack
On March 24, 1653, French mathematician and physicist Joseph Sauveur was born. Sauveur is known principally for his detailed studies on acoustics, a term he also has coined for the first time. Joseph Sauveur – Early Years Joseph Sauveur was the son of a provincial notary in La Fléche, France. Despite a hearing and speech impairment that kept him totally mute until he was seven, Joseph benefited from a fine education at…
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physics
John Randall and the Cavity Magnetron

John Randall and the Cavity Magnetron

Tabea Tietz
On March 23, 1905, British physicist and biophysicist Sir John Randall was born. Randall is credited with radical improvement of the cavity magnetron, an essential component of centimetric wavelength radar, which was one of the keys to the Allied victory in the Second World War. It is also the key component of microwave ovens. He also led the King’s College, London team which worked on the structure of DNA. John Randall –…
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space
Valeri Polyakov and the Longest Single Space Flight

Valeri Polyakov and the Longest Single Space Flight

Tabea Tietz
On March 22, 1995, Russian cosmonaut Valeri Polyakov returned to earth after a 437 days space flight, setting a record for the longest single spaceflight in human history so far, staying aboard the Mir space station.[4] Polyakov did not suffer from any prolonged performance impairments after returning to Earth. In light of these findings, researchers concluded that a stable mood and overall function could be maintained during extended duration spaceflights, such as manned…
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medical science
Albert Schweitzer and his Hospital in Africa

Albert Schweitzer and his Hospital in Africa

Harald Sack
On March 21, 1913, theologian, organist, philosopher, physician, and medical missionary in Africa Albert Schweitzer together with his wife Helene start their voyage to Africa, to establish a hospital in Equatorial Africa. “The awareness that we are all human beings together has become lost in war and through politics.” – Albert Schweitzer, Radio appeal for peace, Oslo, Norway (30 March 1958) Albert Schweitzer – Early Years Albert Schweitzer was born on January…
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literature
Me Miserum! – The sad beautiful Poetry of Ovid

Me Miserum! – The sad beautiful Poetry of Ovid

Harald Sack
On March 20, 43 BCE, Roman poet Publius Ovidius Naso, better know as Ovid, was born. Ovid lived during the reign of Augustus. He composed both epic and elegiac poetry, some of which contributed to his exile from Rome in 8 CE. Back in high school, I remember that we had to translate from some of Ovid’s stories of his Metamorphosis from Latin. However, later we also turned to his rich and…
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engineering
Ferdinand Berthoud and the Chronometer

Ferdinand Berthoud and the Chronometer

Tabea Tietz
On March 19 1727, French horologist Ferdinand Berthoud was born. Together with his great rival, Pierre Le Roy, Berthoud contributed to the development of the chronometer in the attempt to solve the problem of determining longitude at sea. Berthoud‘s improvements to the chronometer have been largely retained in present-day designs. Becoming a Master Watch Maker Ferdinand Berthoud was born in in Plancemont, Val-de-Travers, in the Canton of Neuchâtel, which then belonged to…
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aviation
Romanian Flight Pioneer Traian Vuia and his Flying Machines

Romanian Flight Pioneer Traian Vuia and his Flying Machines

Harald Sack
On March 18, 1906, the flying machine of Romanian inventor Traian Vuia lifted briefly to a powered hop of 11 metres. Though unsuccessful in sustained flight, Vuia‘s invention influenced Louis Blériot in designing monoplanes.[3] In difference to the flying machine of the Wright brothers that made first motor powered flight in December 1903 [2], Vuia‘s machine had the capability to take off from a flat surface, without assistance such as an incline,…
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botany
William Withering and the Clinical Value of Digitalis

William Withering and the Clinical Value of Digitalis

Tabea Tietz
On March 17, 1741, English botanist, geologist, chemist, physician William Withering was born. From his interest in botany, he paid attention to folk remedies used by herb-gatherers, and discovered digitalis, a very useful drug used to steady and strengthen heart action. “In the year 1775 my opinion was asked concerning a family receipt for the cure of the dropsy. I was told that it had long been kept a secret by an old…
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