The puzzling popularity of tattoos

Tattoos are becoming extremely common. I do not mean some little symbol discreetly placed on a small part of the body but even massive ones that cover much of it. I do not have a tattoo and have no intention of ever getting one, since I belong to a generation (and grew up in a country) in which no one I knew got tattoos. To the extent that one read about who got them, it was mainly sailors in western countries who, like Popeye, got clichéd ones with anchors or hearts with arrows through them or women’s names. The creepy 1969 film The Illustrated Man based on the Ray Bradbury story collection of that name may have cemented my antipathy to them.
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Who you gonna call? Michael Faraday!

Michael Faraday (1791-1867) is one the greatest scientists of all time and his contributions to physics and chemistry are immense and his name can be found associated with all manner of phenomena. The unit of capacitance known as the ‘Farad’ is named after him. Amongst all his contributions to science, perhaps the one that had the most impact on the public was his discovery of the law of electromagnetic induction, that if a wire and a magnet are in motion relative to each other, a current will flow in the wire. This forms the basis of our public electricity systems and the working of electric motors.
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Update on the world chess championship

The score between defending champion Magnus Carlsen and Sergey Karyakin currently stands at three draws out of the best-of- twelve game match but Oliver Roeder says that the third draw was unlike the boring first two in that it featured some unusual and exciting play in which Karyakin fought back after being taken by surprise by a Carlsen’s 10th move while playing white. But then Carlsen slipped up at move 71 and the game ended with the players agreeing to a draw after the 78th move.

It is interesting how computers are used by the spectators to analyze the best possible moves at each stage of the game. It appears that there are elaborate measures in place to prevent players from gaining access to computers when they take breaks.

About dreams

I have very vivid dreams, many of them, each and every night, some of which the details I remember after I wake up, though others quickly fade from memory. It turns out that everybody dreams during the REM (rapid eye movement) period of sleep but not everyone recalls those dreams on waking up, so the difference between people who say they dream a lot and those who claim to dream a little or not at all lies only in the recall of them. According to Susan Blackmore in Consciousness: A Very Short Introduction (p. 99), “In a typical night’s sleep the brain cycles through four stages of non-REM sleep; first going down through stages 1-4, then back up to stage 1, and then into a REM period, repeating this pattern four or five times a night.”
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Discrimination by Uber and Lyft drivers

I have never taken a ride in an Uber or a Lyft service so have no first-hand knowledge of how they compare with regular taxis. But a new paper says that Uber drivers practice discrimination against women and people of color and the type of discrimination was different for women than it was for people of color. This article discusses the contents of the paper.
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And now for something completely different – almost

As a break from political news, I was going to write about the world chess championship title match that is just beginning in New York between the reigning champion Magnus Carlsen of Norway and Russian grandmaster Sergei Karyakin. The first game ended in a draw. Carlsen is favored but Karyakin is no pushover, currently ranked ninth in the world after becoming the youngest grandmaster ever at the age of 12.
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