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history
Titanic – the Unsinkable Ship and the Iceberg

Titanic – the Unsinkable Ship and the Iceberg

Tabea Tietz
On April 15, 1912, 2:20 AM, British passenger liner Titanic sank after colliding with an iceberg in the North Atlantic during her maiden voyage from Southampton to New York City, US, causing more than 1,500 deaths. The Largest Vessel of the White Star Line The RMS Titanic was one of the largest vessels of the White Star Line with a length of 269.06 m (882 feet) and a total weight of 46,328 gross…
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history
The Assassination of a President

The Assassination of a President

Harald Sack
On Good Friday, April 14, 1865, as the American Civil War was drawing to a close, well known stage actor and Confederate spy John Wilkes Booth shot United States President Abraham Lincoln in the Presidential booth of the Ford’s theatre in Washington, D.C. And Lincoln should not be the last US president to be assassinated. He was followed by James A. Garfield, William McKinley, and John F. Kennedy, and if we also take attempts…
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space
Yuri Gagarin – the first Man in Space

Yuri Gagarin – the first Man in Space

Tabea Tietz
On 12 April 1961, aboard the Vostok 3KA-3 (Vostok 1), Soviet pilot Yuri Gagarin became both the first human to travel into space, and also the first to orbit the earth. Youth and Education Gagarin was born on 9 March 1934 in the village of Kluschino near Gschatsk as the son of a Russian peasant family. His father Alexei Ivanovich Gagarin (1902-1973) was a carpenter in the collective farm there, his mother…
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history
Houston, we have a Problem

Houston, we have a Problem

Tabea Tietz
On April 11, 1970, at 13:13 CST Apollo 13 was launched from the Kennedy Space Center, Florida, but the lunar landing was aborted after an oxygen tank exploded two days later, crippling the service module upon which the Command Module depended. Despite great hardship caused by limited power, loss of cabin heat, shortage of potable water, and the critical need to jury-rig the carbon dioxide removal system, the crew returned safely to…
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mathematics
Joseph-Louis Lagrange and the Celestial Mechanics

Joseph-Louis Lagrange and the Celestial Mechanics

Harald Sack
On April 10, 1813, Italian mathematician and astronomer Joseph-Louis Lagrange passed away. Lagrange made significant contributions to the fields of analysis, number theory, and both classical and celestial mechanics. “I cannot say whether I will still be doing geometry ten years from now. It also seems to me that the mine has maybe already become too deep and unless one finds new veins it might have to be abandoned. Physics and chemistry…
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engineering
Designers Should Think Big – Isambard Kingdom Brunel

Designers Should Think Big – Isambard Kingdom Brunel

Harald Sack
On April 9, 1806, English engineer and entrepreneur Isambard Kingdom Brunel was born, whose designs revolutionised public transport and modern engineering. He developed and constructed dockyards, the Great Western Railway, a series of steamships including the first propeller-driven transatlantic steamship and numerous important bridges and tunnels. “If the Commission is to enquire into the conditions “to be observed,” it is to be presumed that they will give the result of their enquiries; or, in other…
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mathematics
Edmund Husserl’s Phenomenology

Edmund Husserl’s Phenomenology

Harald Sack
On April 8, 1859, German philosopher and mathematician Edmund Gustav Albrecht Husserl was born. He is best know as the founder of the 20th century philosophical school of phenomenology, where he broke with the positivist orientation of the science and philosophy of his day, yet he elaborated critiques of historicism and of psychologism in logic. “First, anyone who seriously intends to become a philosopher must “once in his life” withdraw into himself…
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communication
The Publication of the First RFC

The Publication of the First RFC

Harald Sack
On April 7, 1969, Steve Crocker of University of California, Los Angeles (UCLA), published the first Request for Comment – RFC 1 – entitled “Host Software”. This might be considered as the beginning of the internet, because Request for Comments (RFC) are memoranda describing methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems. Originally, Steve Crocker’s RFCs were intended to help record unofficial notes on the…
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mathematics
The Short but Influential Life of Niels Henrik Abel

The Short but Influential Life of Niels Henrik Abel

Tabea Tietz
On April 6, 1829, Norwegian mathematician Niels Henrik Abel passed away. Abel is well known in mathematics for proving the impossibility of solving the quintic equation by radicals. In parallel to Évariste Galois – who also died very young – , he laid the foundations of group theory.[8] “The mathematicians have been very much absorbed with finding the general solution of algebraic equations, and several of them have tried to prove the…
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art
Nadar and How Photography became an Art

Nadar and How Photography became an Art

Tabea Tietz
On April 5, 1820, Gaspard-Félix Tournachon better known under his pseudonym Nadar, was born. He is considered to be one of the first grand masters of photography, besides being a caricaturist, a journalist, a novelist, and also a renown balloonist. Early Years Tall, red-haired, with frightened eyes, whimsical to the vagrant youth, Felix Nadar defined himself as “a real daredevil, a jack-of-all-trades, ill-mannered to the point of calling things by their name, and…
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