Comments by "GH1618" (@GH-oi2jf) on "" video.

  1. You want a simple rule, but it isn't simple. People well-versed in scientific subjects have a feeling for how much precision is required in the situation at hand. The degree of precision needed to be useful can vary widely.
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  2. Your example about resistors is hard for me to believe. I knew what resistors were many years before I got an engineering degree, and I knew that those without a tolerance band were 20%, and others were graded 10% or 5%. I don't understand how anyone who did not know such a basic concept could get into an EE program.
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  3. CO2 figures into more things than the fuel we use in our cars and furnaces.
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  4. "Black" does not mean the color you perceive. It means the object does not reflect light. But when hot, a black object emits light.
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  5. "Black" does not denote how you perceive it. It means nonreflective, essentially. All the light you see is emitted light, which is a consequence of its temperature.
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  6. Don't blame all of us. I learned how to pronounce it decades ago as a child interested in electricity.
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  7. You mean her voice sound effect was not right? It wasn't, but her duagram is right. Everybody kniws what it sounds like, anyway. It's fine.
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  8. There should be a spectacle debate on that question.
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  9. She is pronouncing it closer to the German pronunciation. We often hear variations in how names of foreign origin are pronounced. For example, Hossenfelder pronounces "Einstein" in the German way, even though speaking English.
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  10. ⁠So he was teaching in English and using the common English pronunciation, I suppose. Or was he teaching German?
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  11.  @darren.mcauliffe — That's a cold body. Damn cold!
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  12. "Visa" is singular in English because we don't speak Latin. When we borrow a word from a foreign language, it serves our purpose. Most of the conjugations are left behind as useless in English. In a few cases, we respect the Latin singular/plural distinction. An example is datum/data. That is because both forms were incorporated into English together. Nonscientists don't use the word "datum," though, so use "data" as a singular. There is no rigid rule, because we are a practical people. We want our language to be efficient. There is no value to preserving Latin grammar in our own language.
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  13. I don't think it would "look" like anything, because when we say what an object looks like, we are describing the appearance of its reflected light.
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  14. Sure. temperature, blood pressure, etc. All the things measured by medical people.
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