Recent content by 256bits

  1. 256bits

    Undergrad What is the pressure of trapped air inside this tube?

    To which orientation of the u-shaped tube are you referring? as having the higher system pressure. You have the pressure at point labelled 3 in Fig 3 What is the pressure at point labelled 2? And at point 1?
  2. 256bits

    Undergrad What is the pressure of trapped air inside this tube?

    Video The 'system' pressure is greatest in scenario A. with the bubble at the top.
  3. 256bits

    Undergrad What is the pressure of trapped air inside this tube?

    Water can be considered incompressible for the scenario. Thus the water volume in A or C will be the same. What does that tell you about the volume of air, and in turn its pressure?
  4. 256bits

    Beware Fake History

    There is a proliferation of AI fake content on contemporary world events. Similar to the fake news of the first presidential election of Trump where people began to realize there was such a thing. Misinformation ( unintentional untruths and opinion based, along with some disinformation ), was...
  5. 256bits

    UV filter for home central heating?

    Why would one need a UV light for a furnace?? Are there cooling coils for the summer in the ductwork??
  6. 256bits

    Correct statement about size of wire to produce larger extension

    With a prolonged load, creep would become a factor, with the glass fibre then continuously having its strain increase. I suppose one could then say that the glass fibre is plasticly deformed. A thin piano wire of steel should break while experiencing little or no plastic deformation. The...
  7. 256bits

    Correct statement about size of wire to produce larger extension

    Is that true for a brittle material such as glass? For all we know the wire material in the problem may show elastic only deformation only before breaking.
  8. 256bits

    Correct statement about size of wire to produce larger extension

    Sometimes one has to read the whole problem, start to finish. That is the correct way to initially address the problem. So the answer could be B) or C) if one assumes a constant F. ie a 1 gram load will produce double the extension in the second wire if it is longer or of smaller diameter, as...
  9. 256bits

    Distance between a Clock's hands when the distance is increasing most rapidly

    Oh sorry. I do apologize. If what I wrote turned out to appear to be a critique, it was not meant as you are well versed, having and giving great insights as anyone can see.
  10. 256bits

    Distance between a Clock's hands when the distance is increasing most rapidly

    Reading the comments from the video, the obviousness seems to be not ensured. A mixup of, or distinction, between velocity and distance confused a few people. One comment went against her analysis saying that the (relative) velocity must be greatest when the hands are 180 degrees apart. Although...
  11. 256bits

    Collection of Lame Jokes

    Mom just up and went and threw me out of the house today. Earlier, while putting on my shoes lookin out the window, I said "The evening seems calm and warm. " She has taken up walking most days to get some exercise so I added "You thinking of going for a walk." She replied "Yes, I am going for...
  12. 256bits

    King tides are no joke

    Northern Pacific Ocean weather during the winter months driving the water farther inland. The waves must scrape away some of the beach.
  13. 256bits

    Measuring Deer Antler Volume

    Like the Irish Elk ( of the moose family ) ie huge antlers, not sure about the loser part. Something drove the large antler selection. Perhaps larger antlers mean better health in carrying that thing around. https://en.wikipedia.org/wiki/Irish_elk
  14. 256bits

    Measuring Deer Antler Volume

    A female indiscriminate in choosing a partner could be at risk of not-maximizing the return on her energy input for reproduction. Can it be said that the female hooking up outside of the 'harem' is making a selection on a secondary dominant partner based upon some criteria to her liking? The...