Recent submissions

Comment · 3 days ago
Which is almost exactly the same story that applied to the flaky LEDs - bad thermal designs leads to the LEDs or their driver circuitry breaking.
Comment · 17 days ago
I never used FORTRAN 77 (which I'm grateful for) but I enjoyed using Fortran 95 a few times in the early 2000s. Apart from the I/O stuff which always felt clunky but I was also very inexperienced in those day (now I would just wrap it in a Python library). I did try to use it a couple of years ago for a personal DSP project but had a problem finding libraries that were up to date/modernised and so I didn't get very far. I know that there's fpm now but it was just before that happened, maybe I'll try again.
Comment · 1 month ago
The world is made of two types of particle - fermions and bosons. A difference between them is that fermions can not occupy the same quantum state (the Pauli exclusion principle) while bosons can exist as superpositions. Matter is made of electrons, protons and neutrons which are fermions, while the forces are photons, gluons, W , Z and Higgs which are bosons.

In a black hole though … who knows

Comment · 8 months ago
I think they mean that the model should have sleep period where they update themselves with what they learnt that day.
Comment · 11 months ago
I remember being amazed when I learnt about summing arithmetric series.
Comment · 1 year ago
They took a multiplier of 5x (4 indirect deaths for every direct death) and stated that this was conservative given studies of previous conflicts.
Comment · 1 year ago
"Valuable Humans in Transit and Other Stories" by Qntm has some good (harrowing) stories about human uploads too.
Comment · 1 year ago
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Comment · 3 years ago
I have used Thunderbird for years and my work account has to handle large numbers of emails. In general it is fast for me on both Windows and Linux. I have had some issues over the years but they normally turned out to be due to corrupt mail folders.
Comment · 3 years ago
Can anyone explain the maths that he did because my calculation give different results. Isn't there only a 1 in 2588 chance of a student 'guessing' 19 'answers' out of 45 where there are 5 options for each answer? Whereas the article states that it is 1 in 100 ? (actually he writes 1:100 which is odds, so it is 1 in 101?) Don't we just use the Binomial distribution, so: Prob = 45!/(19!26!) * (1/5)*19 * (1 - 1/5)*26 It's really bugging me that I can't get the maths to work.
Comment · 3 years ago
Actually, I can't seem to get the maths to work. Isn't it just the Binomial distribution? Each question has 5 options so the probability of 'success' is 1/5 and so to get 19 questions 'specifically wrong' out of the 45 planted questions by chance is just (1/5)*19 * (1-1/5)*26 * 45!/(19!26!) = 1 in 2588 but in the article it is 1:100. What am I doing wrong ?
Comment · 3 years ago
This feels harsh because if the tests were similar but with small differences then getting the right wrong answers seems likely to happen anyway. Also, he went the extra step and outright failed the student but I'm not sure why that extra step was justified, surely the cheaters were automatically going to get very poor marks.
Comment · 3 years ago
It was an online course and the exam was online too.

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