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Harald Sack

engineering
George Baxter and the Color Printing Process

George Baxter and the Color Printing Process

Harald Sack
On July 31, 1804, English artist and printer George Baxter was born. Baxter is credited with the invention of commercially viable colour printing. Though color printing had been developed in China centuries before, it was not commercially viable. Baxter used wood and metal color blocks in conjunction with steel key plates and using oil inks. George Baxter – First Colour Prints George Baxter was born in 1804 in Lewes, Sussex, the second son…
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medical science
Regnier De Graaf – Creator of Experimental Physiology

Regnier De Graaf – Creator of Experimental Physiology

Harald Sack
On July 30, 1641, Dutch physician and anatomist Regnier de Graaf was born. De Graaf made key discoveries in reproductive biology as e.g. he discovered the follicles of the ovary (known as Graafian follicles), in which the individual egg cells are formed (1672) and also published on male reproductive organs (1668). He was also important for his studies on pancreatic juice (1663) and on the reproductive organs of mammals. He is considered…
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aviation
New Zealand’s Aviation Pioneer Richard Pearse

New Zealand’s Aviation Pioneer Richard Pearse

Harald Sack
On July 29, 1953, New Zealand farmer, inventor and aviation pioneer Richard William Pearse passed away. It is claimed Pearse flew and landed a powered heavier-than-air machine on 31 March 1903, some nine months before the Wright brothers flew their aircraft.[2] The documentary evidence to support such a claim remains open to interpretation, and Pearse did not develop his aircraft to the same degree as the Wright brothers, who achieved sustained controlled…
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biology
Edward Drinker Cope and the Neo-Lamarckian School of Thought

Edward Drinker Cope and the Neo-Lamarckian School of Thought

Harald Sack
On July 28, 1840, American paleontologist and comparative anatomist Edward Drinker Cope was born. Being s well as a noted herpetologist and ichthyologist, he was a founder of the Neo-Lamarckism school of thought. This school believed that changes in developmental (embryonic) timing, not natural selection, was the driving force of evolution. Cope thought that groups of species that shared similar developmental patterns could be grouped into more inclusive groups (i.e. genera, families,…
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music
Parsifal – Richard Wagner’s Last Opera

Parsifal – Richard Wagner’s Last Opera

Harald Sack
On July 26, 1882, Richard Wagner‘s last opera ‘Parsifal‘ premiered in the Festspielhaus at Bayreuth. Wagner described Parsifal not as an opera, but as “ein Bühnenweihfestspiel” (“A Festival Play for the Consecration of the Stage“). Initially, according to Wagner‘s will, Parsifal should only be allowed to be played at Bayreuth, because he wanted to prevent it from degenerating into ‘mere amusement‘ for an opera-going public. Wagner‘s compositions, particularly those of his later…
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literature
Samuel Taylor Coleridge and English Literary Romanticism

Samuel Taylor Coleridge and English Literary Romanticism

Harald Sack
On July 25, 1834, English poet, literary critic and philosopher Samuel Taylor Coleridge passed away. Together with his friend William Wordsworth, he is considered the founder of the Romantic Movement in England. He wrote the poems The Rime of the Ancient Mariner and Kubla Khan, as well as the major prose work Biographia Literaria. His critical work, especially on Shakespeare, was highly influential, and he helped introduce German idealist philosophy to English-speaking culture. It…
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archeology
Sir Mortimer Wheeler’s Adventures in Archaeology

Sir Mortimer Wheeler’s Adventures in Archaeology

Harald Sack
On July 22, 1976, British archaeologist Sir Robert Eric Mortimer Wheeler passed away. Wheeler is recognised as one of the most important British archaeologists of the twentieth century, responsible for successfully encouraging British public interest in the discipline and advancing methodologies of excavation and recording. Further, he is widely acclaimed as a major figure in the establishment of South Asian archaeology.  However, many of his specific interpretations of archaeological sites have been discredited…
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engineering
The Aswan High Dam – the Eighth Wonder of the World

The Aswan High Dam – the Eighth Wonder of the World

Harald Sack
On July 21, 1970, the construction of the Egyptian Aswan High Dam was completed. A key objective of the Egyptian Government following the Egyptian Revolution of 1952, the dam has the ability to control floods, provide water for irrigation, and generate hydroelectricity were seen as pivotal to Egypt’s industrialization. The High Dam was constructed between 1960 and 1970, and has had a significant effect on the economy and culture of Egypt. Soviet leader…
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mathematics
Archytas – The Founder of Mathematical Mechanics

Archytas – The Founder of Mathematical Mechanics

Harald Sack
At about 428 BC, Ancient Greek philosopher, mathematician, astronomer, statesman, and strategist Archytas of Tarentum was born. A scientist of the Pythagorean school he is famous for being the reputed founder of mathematical mechanics, as well as a good friend of Plato. “That tho’ a Man were admitted into Heaven to view the wonderful Fabrick of the World, and the Beauty of the stars, yet what would otherwise be Rapture and Extasie,…
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history
The Marquise de Brinvilliers and the Affair of the Poisons

The Marquise de Brinvilliers and the Affair of the Poisons

Harald Sack
On July 16, 1676, French aristocrat Marie-Madeleine Marguerite d’Aubray, Marquise de Brinvilliers was found guilty of murder, convicted on the strength of letters written by her dead lover and a confession obtained by torture. Her trial and the scandal which followed it launched the notourious Affair of the Poisons, which saw several French aristocrats charged with witchcraft and poisoning. We’ve already had a focus on Catherine Deshayes Monvoisin, aka La Voisin, a midwife…
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