As a result of science’s great achievements in giving us reliable and accurate knowledge, it has tremendous credibility. Unfortunately, that increase in credibility has not been matched by a corresponding increase in the public’s awareness of how science acquires that knowledge and the limitations on it. This makes it possible to dazzle people with ‘science’.
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I pretty much sit all day, mostly working on the computer or reading. I have done this all my life. I am told that I should exercise more but have not done so, due to a combination of laziness and other factors. I now see a report that says that my daily routine of largely sitting is going to kill me and that occasional walking would not have helped anyway.
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A short while ago, residents of Arlington, VA were startled to see a driverless car passing through its streets. At one point a reporter on foot approached the car and looked in and saw that the car did have a driver but that he was disguised as a car seat that he could see through and was controlling the car with his hands held low.
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The new iPhone announced yesterday apparently uses some aspects of facial recognition technology, and Edward Snowden says that it is almost certainly going to be abused. China is forging ahead with facial recognition with estimates of up to a billion people’s faces being entered into databases that enable them to be instantly recognized. The applications made possible by this are vast but the privacy implications are also disturbing.
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I have long been interested in the evolution of words as their meanings change and in his book The Scientific Revolution (1996), author Steven Shapin makes some interesting observations and speculations about two words that over time came to mean things almost directly opposite to what they had meant before. One such word is ‘revolution’.
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Scott Pruitt, Donald Trump’s choice to head the EPA, is a climate change skeptic of course. After all, his boss has called it a ‘hoax’. When asked whether the back-to-back huge hurricanes Harvey and Irma with Jose in the wings should result in having serious discussions about the impact of climate change and how to mitigate it, he replied:
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The TV images we saw of the Apollo astronauts on the moon had a ghostly, grainy look. That poor quality lent support to the beliefs of some people that the moon landings were faked though the reasoning escapes me. If the video was filmed on a secret Hollywood soundstage by Stanley Kubrick, as some allege, then surely NASA could have shelled out a few extra bucks to make a better quality product? (I never quite understood why people would believe something so bizarre. Why would NASA and the top people in the US government cook up such a story?)
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I recently had two separate interesting discussions with some other expatriate Sri Lankan friends who did not know each other. Each independently recounted their experiences with what is called a ‘light reader’ in Sri Lanka or a psychic or a medium in the US. They both talked about the same person named Hendo Hamy who lived in a village. People would go to him with various problems and he would be able to deduce why they had come to see him, what the problem was, and the resolution of the problem. Both were highly impressed by his abilities.
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The ocean off the southern coast of Sri Lanka sees regular visits of large pods of sperm whales and orcas (killer whales) sometimes numbering as many as 350. This attracts both tourists and marine biologists who study these huge animals. Sperm whales eat a diet that consists mostly of squid while the orcas are meat eaters that will kill and eat sperm whales if they can.
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Marcus Ranum sent along this amusing video that describes the napkin ring paradox. Basically it says that if you take any two solid spheres, however much they differ in size, and if you then remove a cylinder of material from each sphere, with the cylinder passing symmetrically through the center of the sphere such that the heights of the remaining solids (which look like napkin rings) are the same, then the volume of the two rings are identical.
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