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Harald Sack

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The Quiet Moments of Edward Hopper

The Quiet Moments of Edward Hopper

Harald Sack
On July 22, 1882, prominent American realist painter and printmaker Edward Hopper was born. Popularly known for his oil paintings reflecting his personal vision of modern American life, he was equally proficient as a watercolorist and printmaker in etching. Hopper has become a modern icon and greatly inspired popular culture. “My aim in painting has always been the most exact transcription possible of my most intimate impressions of nature. ” – Edward…
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philosophy
The Medium is the Message – Marshall McLuhan

The Medium is the Message – Marshall McLuhan

Harald Sack
On July 21, 1911, Canadian philosopher of communication theory Herbert Marshall McLuhan was born. His groundbreaking work is considered to be the cornerstone of media and communication theory. McLuhan is known for coining the expressions the medium is the message and the global village, and for predicting the World Wide Web almost thirty years before it was invented. “In television, images are projected at you. You are the screen. The images wrap…
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poetry
Petrarch and the Invention of the Renaissance

Petrarch and the Invention of the Renaissance

Harald Sack
On July 20, 1304, Italian scholar and poet Francesco Petrarca (Petrarch) was born. He is considered to be one of the earliest humanists and also the “father of the Renaissance.” Petrarch’s sonnets were admired and imitated throughout Europe during the Renaissance and became a model for lyrical poetry. He is also known for being the first to develop the concept of the “Dark Ages”. “I rejoiced in my progress, mourned my weaknesses, and…
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history
Rome is Burning – Nero and the Great Fire of Rome

Rome is Burning – Nero and the Great Fire of Rome

Harald Sack
On July 19, 64 AD, the Great Fire of Rome (Latin: Magnum Incendium Romae) occurred and continued burning until July 26 during the reign of emperor Nero. According to the Roman historian Tacitus three of the 14 city districts were completely burned down, in seven districts only debris and rubble was left from the former buildings, and only 4 districts were not affected. Almost 70 percent of the entire city was destroyed.…
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engineering
Always Find Your Way – The Global Positioning System (GPS)

Always Find Your Way – The Global Positioning System (GPS)

Harald Sack
On July 17, 1995, the Global Positioning System (GPS), the world’s first space-based satellite navigation system is declared operational. GPS provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. Navigation History Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or…
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physics
Now I am become Death, the Destroyer of Worlds – The Trinity Test

Now I am become Death, the Destroyer of Worlds – The Trinity Test

Harald Sack
On July 16, 1945, the first detonation of a nuclear device with the code name Trinity took place in the Jornada del Muerto desert in New Mexico. Although nuclear chain reactions had been hypothesized already in 1933 and the first artificial self-sustaining nuclear chain reaction (Chicago Pile-1) had taken place in December 1942, the date of the Trinity test is usually considered to be the beginning of the Atomic Age. Los Alamos director…
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archeology
Cracking the Code – Champollion and the Rosetta Stone

Cracking the Code – Champollion and the Rosetta Stone

Harald Sack
On July 15, 1799 in the Egyptian village of Rosetta  Pierre-François Bouchard, Captain of the French expedition army on Napoleon‘s Egyptian Campaign discovered an unimpressive black stone with some written inscriptions on it. But this black stone, later referred to as the Rosetta Stone, should become the central key to deciphering the long lost secret of the Egyptian hieroglyphics. The Riddle of Egyptian Hieroglyphs By the end of the 6th century AD, by…
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physics
A Wire to Connect the World – Stephen Gray’s Discovery

A Wire to Connect the World – Stephen Gray’s Discovery

Harald Sack
Today for us it’s pretty normal that electricity can be transmitted on a wire, because it’s part of our daily life. But, in the early 18th century, when the English nature-scientist Stephen Gray was able to show that electricity really can be transmitted on a string of copper, it was an unheard-of revelation. Stephen Gray Background Stephen Gray was born in Canterbury, Kent, the son of the dyer Mathias Gray, baptized on…
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astronomy
John Dee and his World of Science and Magic

John Dee and his World of Science and Magic

Harald Sack
On July 13, 1527, Welsh mathematician, astronomer, astrologer, occultist, navigator, imperialist and consultant to Queen Elizabeth I, John Dee was born. He is considered one of the most learned men of his age. Besides being an ardent promoter of mathematics and a respected astronomer, in his later years he immersed himself in the worlds of magic, astrology and Hermetic philosophy. One of his aims was attempting to commune with angels in order to…
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economics
Nicole Oresme – Polymath of the Late Middle Ages

Nicole Oresme – Polymath of the Late Middle Ages

Harald Sack
On July 11, 1382, significant philosopher of the later Middle Ages Nicole Oresme passed away. As for many historic people of the middle ages, his actual birthdate is unknown and can only be fixed to a period between 1325 and 1330. Nicole Oresme besides William of Ockham [7] or Jean Buridan — a French priest who sowed the seeds of the Copernican revolution in Europe [6] — is considered as one of the most…
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