Recent content by russ_watters

  1. russ_watters

    Is AI Overhyped?

    Yeah, I guess they were hoping to re-task them to AI and it didn't pan out.
  2. russ_watters

    Undergrad What happens to a person's body in space without a spacesuit?

    The missing piece here is how much pressure you can exhert or hold from inhaling. Without a hard seal around your face and forcing air in, humans can exert an inhalation pressure of up to about 74 mm hg (0.1 ATM / 10 kPa). Any more than that and the air forces itself out.
  3. russ_watters

    Is AI Overhyped?

    What widespread integration into society? I haven't seen that. My expectation is that the bursting of the AI bubble will be similar to the bursting of the tech bubble in 2000. It will be a major stock market crash for indices heavily invested in it, but will have very little impact beyond...
  4. russ_watters

    Realta Fusion claims electrical generation from plasma!

    By my read, they didn't do that and aren't claiming they did. They converted electricity from plasma - the plasma was not created/sustained by fusion (there was no fusion claimed).
  5. russ_watters

    Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property?

    Did you actually measure the density of the ice in the plastic bottle to rule out an unusual deformation?
  6. russ_watters

    Is A.I. more than the sum of its parts?

    Sorry for the late reply. I'm not sure I see a relationship between them. Did you have something in mind?
  7. russ_watters

    Undergrad Are the basic axioms of thermodynamics demonstrated experimentally?

    That's what I was going to say, and to add; convection(and heat transfer in general) might be a fairly simple concept, but it gets pretty complex pretty quickly.
  8. russ_watters

    Random Photos

    Yesterday, yes - thanks!
  9. russ_watters

    Random Photos

    From my wedding.
  10. russ_watters

    Methane as a greenhouse gas

    I know this thread is locked, but I'll answer this anyway: The link @pinball1970 posted answers you fine. It says: "Methane (CH4) is estimated to have a GWP of 27 to 30 over 100 years." This doesn't contradict the 84-87 over 20 years: Since CO2 does not decay and methane does, yes, the GWP...
  11. russ_watters

    Why does adiabatic compression use more energy than adiabatic expansion?

    So, are these the processes? I really don't like guessing, but.... Gas in the cylinder starts at atmospheric pressure and room temperature. 1. Gas is adiabatically expanded and cooled. That part you at least made clear. 2. Gas absorbs heat from the room, heating it to room temperature, but...
  12. russ_watters

    Is A.I. more than the sum of its parts?

    It wasn't a complaint specific to your post, it was just a disclaimer for the conversation. Whether that's something in your head or not it is something that I see a lot and would expect to see in this thread.
  13. russ_watters

    Why does adiabatic compression use more energy than adiabatic expansion?

    I get your overall goal, but you are not fully describing your cycles. Are you saying it's closed, not open? Did I miss where you described a phase change? Be clear in describing the processes involved. For the first scenario, is the high pressure side of the piston open to outdoors, as in...
  14. russ_watters

    Why does adiabatic compression use more energy than adiabatic expansion?

    Usually thermodynamic cycles are described with simple statements of the involved processes. @T C you are leaving out steps in your cycles, leaving us to guess what they are. Based on what you've said, it sounds like you intend your second cycle to be an open, compressed-air refrigeration...