John Cuthber

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John Cuthber last won the day on May 26

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About John Cuthber

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    Chemistry Expert
  • Birthday 11/10/1965

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  1. Fructose's fat (overweight causes). Starches too

    The body is generally quite good at converting chemicals. Starch, for example, is quite rapidly degraded in the stomach to form glucose which is then absorbed. About a quarter or a half of the fructose is converted to glucose- the rest is metabolised via different pathways. What is in beer that makes people fat is, essentially, calories. It doesn't matter much if those calories are in the form of sugar or alcohol; if you eat more energy than you use, the body stores the excess by making fat. Incidentally, a linguistic point; when talking about people in English, fat is not the same as thick. Fat means they weigh too much. Thick is usually taken to mean "thick headed" i.e. stupid. So, yes, beer makes people thick- but not in the way you meant.
  2. Fructose's fat (overweight causes). Starches too

    You have the wrong idea.
  3. Position Grounds

    It may be your worldview, but it's not actually correct.
  4. Hydrogen Ions ?

    Good point- at physiological pH it might also be bicarbonate/ carbonate rather than a "free" proton.
  5. finding the equation of a line ( continues data)

    A quick look suggests that there's something else strongly affecting some of the data. If you remove the first two rows of data the remainder fit very well to a linear model. Given how much easier it is to work with linear approximations than with anything else, I'd go with that. Was there anything special about the first two point? Are you able to monitor the temperature of the battery?
  6. Hydrogen Ions ?

    Hydrogen ions in any solvent at all will stick to a molecule (or several molecules) of that solvent. It's typically something like H9O4+ As part of the process of being pumped, a proton might temporarily be stuck to a protein.
  7. finding the equation of a line ( continues data)

    First question: are you using Excel? (I'm not sure how it works with other stuff). Second question. Can you get it to plot a scatter plot of miles vs charge (or whatever)? If so, it should be a matter of Right clicking on the graph and selecting "add trend line" then selecting the type of trend line you want (polynomial or whatever adn clicking the buttons for "display equation on graph" (or something like that.) Failing that, I'm curious to know what the data looks like. If you post it here I will stuff it into a spreadsheet for you (as long as there's not huge amounts of it).
  8. Laser protection goggles and their colors...

    Yes, you can. (neodymium glass is famous for it) But it's unlikely that they do. Those glasses are worse than useless for two reasons. They could fool people into thinking they were "safe" and also, because they will attenuate visible light, the pupil of the eye will open up to compensate making it more likely that you will get the beam in your eye.
  9. Laser protection goggles and their colors...

    If you are buying them as fancy dress for a party...
  10. finding the equation of a line ( continues data)

    You can fit other curves.
  11. finding the equation of a line ( continues data)

    You can use a spreadsheet (excel , or the open Office versions should work) to fit data to a model. It will also plot graphs which is handy.
  12. His position was to start off by quoting someone out of context. If you start from there it's pretty clear you can't do any better. Perhaps he was hoping we wouldn't notice.
  13. What's the only question that matters?

    Is it Friday yet?
  14. Perhaps, but he's not the one spreading that abuse of Penrose's work here It's not sound anyway- as has been pointed out. Anyway, if he's not clever,. he's not worth citing. If he is clever then we can assume he understands the conclusions from his own work; and he's an atheist. If you think he's mistaken then you need to show what mistake he made.
  15. It's "interesting" that someone is saying that Penrose has used maths to show that God exists. Here's what wiki says about Sir Roger Penrose " Religious views[edit] Penrose is an atheist.[31] ...." So, at best, he is being quoted out of context. At worst, someone is deliberately lying.