Born under a bad sign.

The Renaissance Mathematicus

Yesterday’s birthday boy has got to be a serious candidate for the most unfortunate astronomer of all times. Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galaisière (September 12, 1725 – October 22, 1792) was a French astronomer whose life as a scientist started auspiciously in that he was personally trained in his profession by the Cassini’s at the observatory in Paris. In order to understand when and why it all turned pear shaped we have to go back to the 16th and 17th centuries.

One of the consequences of the new cosmological models proffered by Copernicus in 1543 (heliocentrism) and Tycho in 1588 (geo-heliocentrism) was that the inner planets, Mercury and Venus, would or should cross, or as the astronomers say transit, the face of the sun. Now this does not occur by every orbit as the orbits of the planets are tilted slightly with respect to the apparent…

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Exercises in Programming Style

Henrik Warne's blog

In the book club at work, we recently finished reading Exercises in Programming Style by Cristina Videira Lopes. The book consists of a simple program implemented in 33 different programming styles. It is a great way of showing the different styles, and the book was quite popular in the book club. The book is relatively new (it was published in 2014), and I don’t think it is as well-known as it deserves to be. So here is a summary and review of it.

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