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russ_watters's Recent Activity

  1. russ_watters replied to the thread Acceleration of a car and jet plane problem.

    I like this approach. Torque is a component of power, but not the only component. And wheel torque at any instant (along with mass and...

    Nov 13, 2018 at 1:32 PM
  2. russ_watters liked cjl's post in the thread Acceleration of a car and jet plane problem.

    Not really though, since you still have to account for tire size to convert from wheel torque to tractive force. This is why power is...

    Nov 13, 2018 at 1:10 PM
  3. russ_watters replied to the thread Medical C-sections increasing, risks involved.

    This has been bothering me for a week, so I'll just vent it all out: I guess the main fallacies I'm seeing here are the false dichotomy...

    Nov 13, 2018 at 12:33 PM
  4. russ_watters replied to the thread Medical C-sections increasing, risks involved.

    Dave, near as I can tell, you are saying perfectly normal things and implying they are abnormal. *I* am trying to get *you* to show me...

    Nov 13, 2018 at 12:07 PM
  5. russ_watters replied to the thread Medical C-sections increasing, risks involved.

    Can you say then in your own words why a woman should go to a prenatal checkup? What other reason is there besides the health/safety of...

    Nov 13, 2018 at 11:59 AM
  6. russ_watters liked Mandy D's post in the thread Acceleration of a car and jet plane problem.

    I realise that I am late to the party, but my thoughts on this are that I would rather consider tractive effort (force) than torque. It...

    Nov 13, 2018 at 11:44 AM
  7. russ_watters replied to the thread Acceleration of a car and jet plane problem.

    I'm sorry, but this really isn't generally true. Only glasses have collisions between molecules and even then what you say suggests...

    Nov 13, 2018 at 11:43 AM
  8. russ_watters liked Janus's post in the thread B Newton's bucket experiment, Why the debate?.

    But there is no "universal inertial frame of the fixed stars". There is no absolute rest frame against which you can measure inertial...

    Nov 13, 2018 at 10:51 AM
  9. russ_watters replied to the thread B Newton's bucket experiment, Why the debate?.

    That depends on what you use it for. For most purposes on Earth, I would agree, but Foucault would certainly disagree that Earth is...

    Nov 13, 2018 at 10:50 AM
  10. russ_watters replied to the thread B Newton's bucket experiment, Why the debate?.

    Agreed. This isn't clear. Earth is rotating, so it isn't inertial. Maybe you knew that, which is why you put "inertial" in quotes?...

    Nov 13, 2018 at 10:34 AM
  11. russ_watters replied to the thread I Question about Newton's Second and Third Laws.

    Yes, and as othes have said, for most guns this isn't really enough to knock you down, it would really just knock you off balance so you...

    Nov 13, 2018 at 10:21 AM
  12. russ_watters replied to the thread Medical C-sections increasing, risks involved.

    I have a hard time accepting this logic is real in 2018. You aren't suggesting that women should never see a doctor while pregnant, are...

    Nov 13, 2018 at 8:50 AM
  13. russ_watters liked DrDu's post in the thread Medical C-sections increasing, risks involved.

    Actually Dr. Ignaz Semmelweis found in the 19th century that much more mothers died of post partum infections who gave birth in...

    Nov 13, 2018 at 8:47 AM
  14. russ_watters liked pinball1970's post in the thread Medical C-sections increasing, risks involved.

    There's that word again. Nature/natural. A birth today compared with 10,000 years ago would have beared no resemblance. There is nothing...

    Nov 13, 2018 at 8:45 AM