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pzkpfw

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pzkpfw last won the day on December 10 2023

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  • Location
    New Zealand
  • College Major/Degree
    B.Sc. Computing
  • Favorite Area of Science
    I.T.
  • Biography
    Born, grew, living, working.
  • Occupation
    Self employed programmer.

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  1. I just remembered a detergent-only method described in a Kurt Vonnegut book (for common house flies): You fill a bowl with soap bubbles. Raise the bowl up towards a fly sitting on the ceiling. The fly drops a little before trying to fly away - and falls into and is caught by the bubbles. (Amusing in the book, no idea if anyone ever tries that.)
  2. I just did a quick google, and all the first hits suggest apple cider vinegar. Easily bought in any relevant shop. Maybe the "fruitiness" is what attracts the flies? Having said that, they are fruit flies, not common house flies. (I agree with iNow.)
  3. https://edition.cnn.com/2023/02/28/us/crying-indian-ad-campaign-cec/index.html#:~:text=Born Espera Oscar de Corti,campaigns is pictured in 1986. I learned about this from an episode of "American Pickers" where they happened on an old tent of his. On the OP: birth rates in the "more developed" countries falls. Look at the population crisis in many places like Japan. It gets expensive to raise kids, you don't need them to (directly) look after you when you are old, and people simply have other things to do. Equal rights and opportunities for women helps. i.e. given the choice to have kids. The idea in the OP that women need to be lectured on birth control is a very colonial view. So the real trick, will be to develop all nations (so birth rates look after themselves) - but somehow without everyone consuming all resources and polluting like it's 19xx all over again.
  4. Nice points. Probably also means on a tandem bike, both people can pedal to their ability, and are not locked by a chain into needing the same RPM.
  5. Point 10 seems silly to me. (Well, all the points.) For a start it wasn't a total war against China, for example the UN/US where not bombing Chinese territory. And the casualty counts for the Battle of Chosin Reservoir are the definition of cherry picking. https://www.statista.com/statistics/1131592/korean-war-military-casualties/
  6. Once you stick a battery in, then regenerative braking starts having value, so no more of your energy goes to making brake pads get hot. Maybe then it's seen more as a battery driven bike, where your pedaling is a range extender? I like the idea that (at the cost of more weight) this would make it possible to stick another motor in the front wheel - a 2 wheel drive bike? Maybe good in mud? I don't have the skills to calculate which is best.
  7. Makes me wonder if no true Scotsman would have a civil war?
  8. According to relativity, if you and I are in relative motion, we both consider our clocks normal (ticking one second per second) and we both consider each others clocks to be slow. How does the above work with that?
  9. I read the OP as two parts: (paraphrased) A=heard that cosmic rays includes neutrons, B=stuff about neutrons that makes that hard to believe. While B included correct information about neutrons, it seemed possible the whole question might be a red herring if A was just that simple mix up. But I will back away slowly now.
  10. Is the OP simply a mix-up of Neutron and Neutrino?
  11. Radio works at the speed of light. Lasers are also already used for some communication. No time travel involved. Edit: my comment above was posted before the message above was seen. What do you mean by "binary light frequency"? And, it's still not clear why you think/thought information would be received before it is sent.
  12. Just to link it up for Moontanman, the bits I bolded above are worked examples (reverse order) of what I described in the 3rd post:
  13. It's always about who is measuring what relative to what.
  14. For Moontanman: in the above, that 0.5c is as measured by the space station, and each rocket to the station; and the 0.8c is as measured by each rocket to the other rocket. For the space station, the closing speed of the rockets (which is not the speed of either rocket) is c.
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