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Science & Space

The most popular blog posts about science & space on Hacker News. 147 posts.

2015
133

How transistors really work (1995)

Most technician textbooks do a very poor job of explaining the details of transistors' internal workings. First they assume that the Base current is somehow controlling the Collector current, then they try to explain how one current can affect another. These explanations invariably fail because Bipolar transistors…

136

Medication errors found in half of surgeries

The first study to measure the incidence of medication errors and adverse drug events during the perioperative period has found that some sort of mistake or adverse event occurred in every second operation and in 5 percent of observed drug administrations, according to information gathered from 275 operations at…

139

Energy Is Not Conserved (2010)

I’ve been meaning to link to this post at the arXiv blog , which is a great source of quirky and interesting new papers. In this case they are pointing to a speculative but interesting paper by Martin Perl and Holger Mueller, which suggests an experimental search for gradients in dark energy by way of atom…

142

Stephen Wolfram, A New Kind of Science

Attention conservation notice : Once, I was one of the authors of a paper on cellular automata . Lawyers for Wolfram Research Inc. threatened to sue me, my co-authors and our employer, because one of our citations referred to a certain mathematical proof, and they claimed the existence of this proof was a trade secret…

143

California, Water You Doing?

[Epistemic status: Low confidence. I have found numbers and stared at them until they made sense to me, but I have no education in this area. Tell me if I’m wrong.] I. There has recently been…

145

Cardiologists and Chinese Robbers

I. It takes a special sort of person to be a cardiologist. This is not always a good thing. You may have read about one or another of the “cardiologist caught falsifying test results and perf…