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Nicholas Conder
Veritasium
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Comments by "Nicholas Conder" (@nicholasconder4703) on "Veritasium" channel.
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@julmaass That would mean that oatmeal has a much greater mass than other known substances, and you are suffering from relativistic time dilation eating it. Maybe it's a good source of gravitons.
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My favorite bad experiment is likely still taught in schools. It is the experiment showing how pollution created a preference for black moths over white moths. A statistician, Professor Hurlbert, went back through this famous paper, and discovered things like the researchers proving predator preference by pinning a dead black moth to a dark log next to a pinned live white moth. Gee, which one was going to be eaten? Yet this paper became a foundation for evolutionary science. I have also read a few other papers like this as well.
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@jibjub2121 From first-hand experience, I can tell you that the issue lies in the fact that many researchers don't take the responsibility of peer review seriously. There is a definite lack of researchers with the time and/or inclination to do a proper job. To be fair, there are a lot of submissions, but that doesn't account for the cursory or shoddy jobs of reviewing that I have seen.
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The way you worded this produces a wonderful double entendre. I mean, undergrad are promiscuous as it is, do you really want to encourage them more?🤣
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@emerald_dreamer3981 Interesting fact about Roundup. I have seen some evidence, not published, that shows the active ingredient in Roundup (glyphosate) is not a great herbicide, but the proprietary ingredients and residues from the manufacturing process contained in the product are!
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You also need better peer review by people who understand statistics.
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@sailingluana3037 Sadly, ethics often disappear when money is involved. From what I have heard, this is one reason why medical research has the highest rate of fraudulent results being published. Or coercion. I know of at least one researcher who was blacklisted because he dared to publish the truth.
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@Aspect Actually, many of them don't. I have seen people running ANOVAs on discrete data, and Gaussian-based analyses on sample sizes under 30, or t-tests on non-parametric data. And pseudo-replication. You might be surprised at the number of researchers who conduct an experiment, then hunt around for statistics to analyse the results, rather than consult with statisticians to design an experiment that can be properly tested. Rather like the old euphemism of putting the cart before the horse.
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The biggest problem with the 5th postulate is that Euclid did not state that it only held true for lines drawn on a flat plane.
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@danielgogeleien2771 Although I seem to recall there is at least one paper that calls that figure into contention as well. Unfortunately I cannot remember the details, but as I recall (maybe erroneously) part of it also depended on where in the tree the moths were collected. Also, how accurate were the early baseline data? It is possible that there may have been pre-experimental bias in which colour variant was preferentially collected. I have encountered selection bias myself. It became an issue because we were trying to determine percent parasitism of insect egg-masses. We did an experiment where I created a grid with a number of randomly pre-selected squares were coloured so the students were forced to select individual eggs from specific cells. The other part of the experiment consisted of the students just selecting eggs as per normal. Turns out we were inadvertently skewing our results because students tended to select eggs that were hairless (inside the egg mass) versus those that had hairs (outside of the egg mass). So, we ended up actually underestimating percent parasitism because of selection bias.
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@wiwaxiasilver827 Yes. In the process of laying their eggs, females of the family Lymantriidae end up placing hairs from their abdomen onto the surface of the egg masses. The hairs are glued to the surface of the egg masses by the adhesive substance that attached the egg masses to the object they are sitting on, and glue the eggs together to form a fairly solid mass. You can see this with tussock moth and gypsy moth egg masses.
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