Politico has a piece today about Trump’s outrageous claims in the face of weather disasters. In almost every context, he reveals himself to be an abject fool; but lurking beneath that idiocy is another layer of loathsomeness - the complete lacking in understanding of science. I want a reporter to ask him any of the following questions about hurricanes:
“Mr. Trump, can you describe for us your understanding of how hurricanes form?”
“What role do Coriolis forces play in the formation of tropical cyclones.”
“Given that hurricanes possess massive amounts of energy, what are the sources of that energy?”
An article from the Times on why yelling at children is comparable to physical punishment. Children who are subjected to yelling have lower self-esteem, and more depressive and anxiety symptoms.^[The article cites a study that shows a reciprocal amplifying effect of yelling and behavioural problems: “Mothers’ and fathers’ harsh verbal discipline at age 13 predicted an increase in adolescent conduct problems and depressive symptoms between ages 13 and 14. A child effect was also present, with adolescent misconduct at age 13 predicting increases in mothers’ and fathers’ harsh verbal discipline between ages 13 and 14.”]
A recent piece in The Atlantic by Peter Beinart filled in a cognitive gap in understanding how a large minority of U.S. citizens continue to support an abjectly incompetent, almost certainly criminal, willfully ignorant, and generally hateful man as president. The article Why Trump supporters believe he is not corrupt makes the argument that when Trump defenders concern themselves with the idea of corruption they are not thinking of political corruption so much as corruption of the purity. This is consistent with Jonathan Haight’s research into the determinants of a person’s moral judgments as a function of political affiliation.^[This has been noted before by Thomas Edsall back in early 2016 writing for The New York Times.] Conservatives are likelier than liberals to concern themselves with tradition and purity. When Donald Trump uses the word disgusting which he has done scores of times on Twitter, he’s invoking the conservative fear of taint. The Special Prosecutor’s inquiry into possible collusion and other crimes committed during the 2016 elections, in Trump’s view, are not only unlawful, biased, or unfavourable in some other objective way. It is, to Trump, disgusting (“this Rigged and Disgusting Witch Hunt.”)
According to Beinart, the key to understanding the failure of Trump’s supporters to acknowledge his corruption is the result of how they define corruption.
In a forthcoming book titled How Fascism Works, the Yale philosophy professor Jason Stanley makes an intriguing claim. “Corruption, to the fascist politician,” he suggests, “is really about the corruption of purity rather than of the law. Officially, the fascist politician’s denunciations of corruption sound like a denunciation of political corruption. But such talk is intended to evoke corruption in the sense of the usurpation of the traditional order.”
Why were Trump’s supporters so convinced that Clinton was the more corrupt candidate even as reporters uncovered far more damning evidence about Trump’s foundation than they did about Clinton’s? Likely because Clinton’s candidacy threatened traditional gender roles. For many Americans, female ambition—especially in service of a feminist agenda—in and of itself represents a form of corruption. “When female politicians were described as power-seeking,” noted the Yale researchers Victoria Brescoll and Tyler Okimoto in a 2010 study, “participants experienced feelings of moral outrage (i.e., contempt, anger, and/or disgust).”
Fascists, like Trump, pull a sleight of hand. By invoking the risk of corrupting purity, tradition and order, they distract their supporters from the real political corruption.
It turns out that command line text web browers like lynx can bypass AdBlock detection.
On macOS, I installed lynx using Homebrew. Then from the Terminal, it’s just lynx your-url. It’s actually quite pleasant to read text without all of the images and fluff.
This is an interesting essay in The Guardian on the idea of quarantining extremist ideas.
A non-trivial proportion of the population regards the media as having a responsibility to represent all idea with equal validity. So the appearance of extremist ideas in the press, even if they are treated negatively, results in more legitimacy than they are due. The authors in this essay make a case for quarantining these extreme ideas, refusing to cover them. Strategic silence, they call it.
By now you are aware of Nicholas Kirstof’s piece^[Was Kevin Cooper Framed for Murder: https://www.nytimes.com/interactive/2018/05/17/opinion/sunday/kevin-cooper-california-death-row.html] in The New York Times in which he presents abundant evidence that investigators and prosecutors framed Kevin Cooper for the murder of four people in Chino.
Advanced DNA testing could produce potentially exculpatory evidence. Or not. But the truth must be pursued. You have rejected calls to exercise the authority of your office to order such testing. It beggars belief that you would not use that authority wisely in the search for truth, when the evidence was distorted for malicious purposes is so strong.
In a previous post I wrote about displaying arbitrary data on a TM1637-based 4 digit LED display, highlighting an ESP-IDF component that I extended to display positive and negative floating point numbers. Now we’re going to put that component to use and display actual data from a DS18B20 temperature sensor.
The {% asset_link DS18B20.pdf “DS18B20” %} temperature sensor operates on the Dallas Semiconductor 1-Wire bus. In this application, we aren’t powering the devices using parasitic power. Instead we’re powering the device from an external supply.
While the ESP32 sports a number of GPIO pins, not all are broken out on every board, meaning that sometimes a GPIO expander is necessary. This project is a simple design to test interfacing the ESP32 to an MCP23017 via the I2C interface.
MCP23017 I2C addressing
There are so many tutorials on the MCP23017 that I won’t delve in depth into how it works, but I’ll point out a few features of the custom MCP23017 component that I’m developing as part of this demonstration project. If you need to get up-to-speed developing applications using I2C within the ESP-IDF environment, this tutorial from Luca Dentella is excellent and concise.
There are three main types of 4 digit seven segment displays to be found on the market:
Bare displays without any driver. These come in a variety of colors and with either decimal points or clock-type display with a colon dividing two sets of two digits.
74HC595-based displays. Usually these displays have two daisy-chained 74HC595 shift registers and rely on the host controller to fill the serial registers and handle the multiplexing. Depending on the processor speed, this ends up being a significant overhead.
TM1637-based displays. These displays reduce the burden on the host controller because all of the multiplexing is handled on the interface chip.
Getting ESP32 to talk to TM1637-based displays
This post is about the TM1637 LED displays. The {% asset_link Datasheet_TM1637.pdf TM1637 datasheet %} is terrible, but fortunately there are several libraries for Arduino that provide a little insight into how others have managed to make this work. First things first, the communication protocol for this device is not I2C despite what vendors on Aliexpress frequently claim.
