Recent content by waross

  1. W

    I Don't Ever Mention "Centrifugal Force" to Physicists

    The best reason to avoid the use of the word "centrifugal" is that use leads to endless futile discussions such as this one. May I suggest futile?
  2. W

    I Don't Ever Mention "Centrifugal Force" to Physicists

    Centrifugal force, Centripetal force. Centripedal force. A force that encourages walking. Nancy "Boots" Sinatra was influenced by this force.
  3. W

    I Don't Ever Mention "Centrifugal Force" to Physicists

    Ohm's Law. No just a good idea; It's the law!
  4. W

    I Don't Ever Mention "Centrifugal Force" to Physicists

    To late. That has been done. More than once. I'm so old that I have seen electricity go three ways. In high school I was taught that electricity flowed from positive to negative. Later in trade school, I was taught that electricity was a movement of electrons which moved from negative to...
  5. W

    Increasing the output torque of a DC motor with gears

    Are you aware of the Law of the lever? Do you understand why you may be able to lift a 1000 lb object by yourself with the help of a lever? If not, we can't help you. If you understand the Law of the Lever, know that gearing works on the same principle. DC motors. What is an ideal motor? A...
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    What does the 'power' vs 'time' graph look like for a 3 phase AC supply?

    90 Degree two phase versus 120 degree three phase. First there are several ways to deliver two phase power: Three wire systems. Four wire systems. and Five wire systems. A three wire two phase system has a common wire that carries 1.414 more current than the other two wires. A three phase...
  7. W

    What does the 'power' vs 'time' graph look like for a 3 phase AC supply?

    Sorry, it is the voltage that sums to zero, not the current. If the voltage does not sum to zero, there will be circulating currents in delta windings of motors and transformers. An unloaded delta transformer may overheat to the point of failure by as little as 10% difference in supply phase...
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    What are these transformer looking like things?

    That may be a recloser. If you live in a rural area, you have probably noticed the power blinking off for a few seconds. The most common causes of faults on rural distribution lines are momentary faults caused by rodents or birds shorting the line to ground or by falling tree branches. The...
  9. W

    How does a 1-wheeled motorcycle turn?

    A tilted wheel acts as a cone, hence the curved path. At a given speed and a given tilt angle, the center of the curve radius is the point where an extension of the axle meets the horizontal plane of the roadway. As the wheel slows, it loses centrifugal force and leans more to establish...
  10. W

    I Filling a rigid tire from a pressure regulated compressed air line

    Thank you for the correction. I suffer senior moments and brain farts. The point is; With short time constants, PU errors become vanishingly small. Offset errors persist, but offset errors may be caused by inaccurate measuring equipment or by hidden factors. Tip: As the tire pressure increases...
  11. W

    I Filling a rigid tire from a pressure regulated compressed air line

    A reality check based on the capacitor analogy. Based on charging a capacitor from a 100 Volt source. In one time constant, the voltage will rise to approximately 63 Volts or 63%. At the end of one time constant, there will be 37% or 37 Volts driving the charging current. We will start...
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