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physics
Martin Perl and the Tau Particle

Martin Perl and the Tau Particle

Harald Sack
On June 24, 1927, American physicist and Nobel Laureate Martin Lewis Perl was born. He is best known for his discovery of the tau lepton, a subatomic massive particle with a negative charge. The tau, which he found in the mid-1970s, was the first evidence of a third “generation” of fundamental particles. Tau Lepton The tau lepton (τ, also called the tau particle, tauon or simply tau) is an elementary particle similar…
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geology
Deodat de Dolomieu and the Love for Rocks

Deodat de Dolomieu and the Love for Rocks

Tabea Tietz
On June 23, 1750, French geologist Déodat Gratet de Dolomieu was born. He is best known for his field research in mineralogy. The mineral and the rock dolomite and the largest summital crater on the Piton de la Fournaise volcano were named after him. Déodat de Dolomieu, a Non-Actualistic Catastrophist Déodat de Dolomieu grew up in the Alps of southeastern France and showed early interest in his surrounding nature. However, he started a…
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astronomy
The Discovery of Charon, Pluto’s largest Moon

The Discovery of Charon, Pluto’s largest Moon

Tabea Tietz
On June 22, 1978, US astronomer James Christie discovered Charon, the largest moon of Pluto. Although there was a discussion after the reclassification of Pluto as a dwarf, Charon is not in the list of dwarf planets currently recognized by the IAU. A Bulge on Pluto On June 22, 1978,  James Christy had examined the magnified images of the former planet Pluto, taken with the 61-inch Flagstaff telescope two months prior. He noticed a…
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history

Widukind of Corvey and his Saxon Chronicles

Harald Sack
Approximately around 925, medieval Saxon chronicler Widukind of Corvey was born. His three-volume Res gestae saxonicae sive annalium libri tres is an important chronicle of 10th-century Germany during the rule of the Ottonian dynasty. Widukind’s Life Possibly Widukind was a descendant of the Saxon Duke Widukind, the opponent of Charlemagne, because of the similarity of names.[1] Widukind entered the Benedictine monastery Corvey before 942, still under Abbot Volkmar I. According to older…
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archeology
Gerald Hawkins and the Secret of Stonehenge

Gerald Hawkins and the Secret of Stonehenge

Harald Sack
On June 20, 1928, English astronomer and author Gerald Stanley Hawkins was born. He is best known for his work in the field of archaeoastronomy. In 1965 he published an analysis of Stonehenge in which he was the first to propose its purpose as an ancient astronomical observatory used to predict movements of sun and stars. Background Gerald Hawkins Gerald Hawkins was born in Great Yarmouth and studied physics and mathematics at…
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biology
Ernst Boris Chain and his Research on Antibiotics

Ernst Boris Chain and his Research on Antibiotics

Harald Sack
On June 19, 1906, German-born British biochemist and Nobel Laureate Sir Ernst Boris Chain was born. He is best known for being one of the founders of chemical and medical research on antibiotics, esp. on Penicillinum. “Science, as long as it limits itself to the descriptive study of the laws of nature, has no moral or ethical quality and this applies to the physical as well as the biological sciences.” (Sir Ernst Boris Chain,…
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philosophy
Jürgen Habermas and Communicative Rationality

Jürgen Habermas and Communicative Rationality

Tabea Tietz
On June 18, 1929, German sociologist and philosopher Jürgen Habermas was born. Widely recognized as one of the world’s leading intellectuals, Habermas is perhaps best known for his theories on communicative rationality and the public sphere. “Subjects who reciprocally recognize each other as such, must consider each other as identical, insofar as they both take up the position of subject; they must at all times subsume themselves and the other under the…
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explorer
Sir Francis Drake’s discovery of Nova Albion

Sir Francis Drake’s discovery of Nova Albion

Tabea Tietz
On June 17, 1579, English explorer Sir Francis Drake raised a claim for a new land that he thought he had discovered during his circumnavigation of the world and named it “Nova Albion“. But he was not the first. Already in 1542, Spanish conquistador Juan Rodríguez Cabrillo had landed there and raised a claim for the Spanish crown. He founded a place he called San Miguel, later renamed to San Diego. But,…
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biology
Barbara McClintock and Cytogenetics

Barbara McClintock and Cytogenetics

Harald Sack
On June 16, 1902, American cytogeneticist Barbara McClintock was born. She is one of the world’s most distinguished cytogeneticists and received the 1983 Nobel Laureate in Physiology or Medicine. “If chromosomes are broken by various means, the broken ends appear to be adhesive and tend to fuse with one another 2-by-2. This has been abundantly illustrated in the studies of chromosomal aberrations induced by X-ray treatment. It also occurs after mechanical rupture…
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politics
Niemand hat die Absicht eine Mauer zu bauen!

Niemand hat die Absicht eine Mauer zu bauen!

Harald Sack
You might wonder, why we have a German headline today. But, this is an original quote, and also a very famous one about the Berlin Wall… On June 15, 1961, first Secretary of the Socialist Unity Party and German Democratic Republic State Council chairman Walter Ulbricht stated in an international press conference, “Niemand hat die Absicht, eine Mauer zu errichten!” (No one has the intention of erecting a wall!) Of course you…
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