Pedro Lilienfeld

If you wear an analog watch (one with hands and a dial with 12 segments), and you are able to discern where the Sun is, you have a nearly perfect compass, in fact, likely to be more accurate than a magnetic compass. Here is the procedure, a very simple one, indeed: The example illustrated below…

It has been said that knowledge of math, some math, can provide the individual with tools to fend off irrationality, ignorance, even superstition. I do subscribe to that assessment. A smattering of statistics helps to understand data. Indeed, there are many benefits garnered from a bit of math literacy. I’m going to give an illuminating…

Written in the mid 2010s as a draft, but not submitted Recently, in reading an article in an Astronomy magazine about the Kepler space mission I was made aware that the continuation of that – so far very successful mission – was endangered by federal funding retrenchments. Although the extension of this mission – beyond…

Letter responding to Elizabeth Kolbert’s piece about extraterrestrial life. February 8, 2021 In Search of Alien Life In a review of current debates about whether extraterrestrials have visited Earth, Elizabeth Kolbert discusses the Fermi paradox, which asks, in reference to aliens, “Where are they?” (Books, January 25th). Some useful context is the Rare Earth hypothesis,…

Starting November 25, 2020, I issued a series of science tidbits under the rubric of the above title, in honor and memory of a notable man: Tom Urban, father of my daughter in law, Nina Urban. He had passed a few months earlier. The following was his obituary: “Des Moines – Tom was born on…

Enough has been written about this subject but I can not avoid contributing to it with my own thoughts. The first point I would like to make is that there is not just one astrology but many. There is the Western one with which people in the U.S. and Europe are most familiar. There is…

Here, again, the pained words that I have cited before:Primo Michele Levi (1919-1987): Italian chemist, partisan, writer andJewish Holocaust survivor: “C’è Auschwitz, quindi non può esserci Dio. Non trovo una soluzione al dilemma. La cerco ma non la trovo.” (“There is Auschwitz, and so there cannot be God. I don’t find a solution to this…

In Chapter 8 of my autobiography, entitled The Making of an Atheist, among other subjects, I discussed the pervasive misogyny of the Abrahamic religions. I failed to mention the most egregious manifestation of that trait in the Christian tradition. It is embodied in the all encompassing Virgin Mary mythology. Ostensibly, an homage to a divine…

I find it noteworthy to cite here the, to me, rather pertinent words of Marc Bloch, the well known and ill-fated French historian, from his book Strange Defeat which analyses the causes of France’s WWII rout by the Germans in 1940: “By birth, I am a Jew, though not by religion, for I have never…

What is a Jew? A recent family conversation has elicited this question. The answer is far from simple and has been a subject of disputation since time immemorial. One simple answer is that a Jew is someone who considers himself/herself as such. But that skirts the issue. Is Jewishness a religious classification, an ethnic grouping,…