Search Results for: one day later

A very similar luminous lustre appears when one observes a burning candle from a great distance through a translucent piece of horn.

On 15 December 1612 (os) Simon Marius, Court Mathematicus in Ansbach, became the first astronomer to record a telescopic observation of the Andromeda Nebula. The importance of this observation was that whereas other known nebulae such as the Orion Nebula, … Continue reading


Filed under History of Astronomy, History of science, Local Heroes, Renaissance Science

Jesuit Day

Adam Richter (@AdamDRichter) of the Wallifaction Blog (he researches John Wallis) tells me that the Society of Jesus, known colloquially as the Jesuits, was officially recognised by Pope Paul III on 27th September 1540. He gives a short list of … Continue reading


Filed under History of Astronomy, History of science, Myths of Science, Renaissance Science

How much can you get wrong in an eight hundred word biographical sketch of a very famous sixteenth and seventeenth-century mathematicus and philosophicus? – One helluva lot it seems?

If someone is doing the Internet equivalent of being a big-mouthed braggart and posting an article with the screaming title, “10 Absurdly Famous People You Probably Don’t Know Enough About” you would expect them to at least get their historical … Continue reading


Filed under History of Astronomy, History of science, Myths of Science, Renaissance Science

Giants’ Shoulders #70 celebrates a birthday.

Hans Sloane is one of those figures in the history of science, who deserves to be much better known than he is. Although Sloane Square in London is named after him, giving name to one of the horrors of modern … Continue reading


Filed under Giants' Shoulders, History of medicine, History of science

Everyday Renaissance Astrology.

One of the joys of having run a moderately successful history of science blog for a number of years, and thus become somehow respectable, is that I occasionally get to review books; this is one of those reviews.  Regular readers … Continue reading


Filed under History of Astrology

Monday morning smack-down: Sherlock Holmes rather than Dirty Harry.

Science writer Judith Dutton at mental _floss blogged about Isaac Newton’s activities at the Royal Mint last Friday. She chose to retell the story of Newton’s pursuit of the coiner William Chaloner. The main part of her piece is OK when … Continue reading


Filed under Newton

Monday Blast from the Past #3

The first substantive post that I wrote on this blog, following a couple of introductory pieces explaining who I am and why I am blogging, was about the much maligned Jesuit astronomer and mathematicus Christoph Clavius educational reformer and friend … Continue reading

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Filed under Monday Blast from the Past

Monday Blast from the Past #2

It’s only the second week and I’m already a day late with my Monday Blast from the Past. Some time back I took a somewhat longer look at the famous Galileo quote, “the book of nature is written in the … Continue reading

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The day that Jonas died

Even fairly ardent scholars of 17th century mathematics are unlikely to have heard of Jonas Moore who died on 25th August 1679. There is no Moore’s theorem or algorithm no branch of mathematics that counts him amongst its founders or … Continue reading


Filed under History of Astronomy, History of Mathematics, History of Navigation

A Biological Birthday.

The 12th of February is an important anniversary in the history of biology. Today is the birthday of a man who helped to revolutionise the discipline in his time. I am of course speaking of Jan Swammerdam (12.02.1637 – 15.02.1680). … Continue reading


Filed under History of science