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Tabea Tietz

engineering
Laurens Hammond and the Hammond Organ

Laurens Hammond and the Hammond Organ

Tabea Tietz
On April 24, 1934, American engineer and inventor Laurens Hammond filed US Patent 1,956,350 for an “electrical musical instrument“, his famous eponymous electric organ with the unique ‘Hammond sound’. The Hammond Clock Company Laurens was born in Illinois, USA, but moved to France after his father took his life. In  Europe, Hammond began to design some of his earliest inventions. By the age of 14, the boy had already designed systems for automatic…
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politics
Encore un Moment – The Life of Madame Du Barry

Encore un Moment – The Life of Madame Du Barry

Tabea Tietz
On April 22, 1769, Jeanne Bécu, comtesse du Barry, better known as Madame du Barry, was introduced at the French court. Originally being only a seamstress, Madame du Barry should become Maîtresse-en-titre of Louis XV of France and the most powerful woman in France. From Street Seller to Courtesan Madame du Barry was born in Lorraine, France and had to support herself financially at the age of 15 or 16. It is…
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computer games
The Triumph of the Game Boy

The Triumph of the Game Boy

Tabea Tietz
On April 21, 1989, Nintendo presented the 8-bit handheld video game device called Game Boy, the first handheld console. The Game Boy and its successor, the Game Boy Color, have been tremendous successful by combined selling 118.69 million units worldwide. Upon its release in the United States, it sold its entire shipment of one million units within weeks. The device became a cultural icon of the early 1990s. Production of the device continued…
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biology
Royal Botanist Charles Plumier

Royal Botanist Charles Plumier

Tabea Tietz
On April 20, 1646, French botanist Charles Plumier was born. He is considered one of the most important of the botanical explorers of his time. He made three botanizing expeditions to the West Indies, which resulted in a massive work Nova Plantarum Americanarum Genera (1703–04) and was appointed botanist to king Louis XIV of France. A Friar and Botanist Charles Plumier was born in Marseille and entered the order of the Minims,…
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history
The Natural History Museum in London

The Natural History Museum in London

Tabea Tietz
On April 18, 1881, the Natural History Museum in London was opened for the public. It is one of the largest natural history museum‘s of the world. Sir Hans Sloane’s Collection Sir Hans Sloane was an Irish physician, but also a collector who provided the foundation for the museum. He allowed his collections to be purchased by the British government below their actual value on the free market. The collections included dried plants,…
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chemistry
Joseph Black and the Discovery of Carbon Dioxide

Joseph Black and the Discovery of Carbon Dioxide

Tabea Tietz
On April 16, 1742, Scottish physician and chemist Joseph Black was born. He is best known for his discoveries of latent heat, specific heat, and carbon dioxide. “As the ostensible effect of the heat … consists not in warming the surrounding bodies but in rendering the ice fluid, so, in the case of boiling, the heat absorbed does not warm surrounding bodies but converts the water into vapor. In both cases, considered…
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politics
Catherine de Medici and St. Bartholomew’s Day

Catherine de Medici and St. Bartholomew’s Day

Tabea Tietz
On April 13, 1519, Italian noblewoman and Queen of France Catherine de’ Medici was born. Catherine played a key role in the reign of her sons, and is blamed for the excessive persecutions of the Hugenots in particular for the St. Bartholomew’s Day massacre of 1572, in which thousands of Huguenots were killed in Paris and throughout France. Catherine de Medici and Henry, Duke of Orleans Catherine de’ Medici was born into a…
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art
Robert Delaunay and Orphism Art Movement

Robert Delaunay and Orphism Art Movement

Tabea Tietz
On April 12, 1885, French artist Robert Delaunay was born. Together with his wife Sonia Delaunay and others, he cofounded the Orphism art movement, noted for its use of strong colours and geometric shapes. Light in nature creates movement in color. The movement is provided by the relationships of uneven measures, of colors contrasts among themselves and constitutes Reality. – Robert Delaunay Early Years Robert Delauney grew up with his aunt and…
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medical science
James Parkinson and Parkinson’s Disease

James Parkinson and Parkinson’s Disease

Tabea Tietz
On April 11, 1755, English apothecary surgeon, geologist, paleontologist, and political activist James Parkinson was born. He is most famous for his 1817 work, An Essay on the Shaking Palsy, in which he was the first to describe “paralysis agitans“, a condition that would later be renamed Parkinson‘s disease. James Parkinson James Parkinson was born in London. His father was an apothecary and surgeon, practicing in the city and in 1784 Parkinson…
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physics
Heike Kamerlingh Onnes and Superconductivity

Heike Kamerlingh Onnes and Superconductivity

Tabea Tietz
On April 8, 1911, Dutch physicist and Nobel Laureate Heike Kamerlingh Onnes found that at a temperature of only 4.2 K (-269° C) the resistance in a solid mercury wire immersed in liquid helium suddenly vanished. Kamerlingh Onnes discovered superconductivity. „Door meten tot weten“ – “Through measurement to knowledge” – Motto of Kamerlingh Onnes’ Laboratory Early Years Born in Groningen, Netherlands, Kamerlingh Onnes also attended the city’s university and studied under the famous…
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