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Vivid Daily Display of Atmospheric CO2 on NASA Website

Tim the plumber said:

Yep, but when a simple challenge to demonstrate a claim is totally run away from it's even more clear.

You claim to be an electrical engineer, to degree standard, well, your failure to answer any question on the subject shows that you know that we know far more about it and I am just a plumber with physics education to 18 years old.

If the claim of mine that I am a plumber was important within a debate then it would be reasonable for me to be expected to answer some questions about plumbing to show that I was not making a false claim. You cannot do the same for your claim.
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The basic physics of water flow, electron flow, wind flow, etc. have the same basic math behind them. Feedback is the same basic formula between electrical feedback and climate feedback. It is obvious by his postings that he doesn't understand these basic concepts.

I like throwing out the three phase question, there are several reasons it is used, but they they revolve around two basic concepts. One of them is the trigonometry sine function, i.e. "sine wave..." or sine curve.
 
Lord of Planar said:
The basic physics of water flow, electron flow, wind flow, etc. have the same basic math behind them. Feedback is the same basic formula between electrical feedback and climate feedback. It is obvious by his postings that he doesn't understand these basic concepts.

I like throwing out the three phase question, there are several reasons it is used, but they they revolve around two basic concepts. One of them is the trigonometry sine function, i.e. "sine wave..." or sine curve.
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Yes and the other is one of the reasons I dropped out of a mechanical engineering degree. Just could not get my head around the branch of maths that is also involved.
 
PirateMk1 said:
Oh I remember that one, Chevron used to use that setup to demonstrate electrical burns. Not very good way to make a decent hot dog. Crispy inside out if I remember correctly.
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When I was an 18 yr old bachelor, that was my choice way of cooking them. Quick and simple, like only 5 seconds...
 
Tim the plumber said:
Yes and the other is one of the reasons I dropped out of a mechanical engineering degree. Just could not get my head around the branch of maths that is also involved.
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Well, the other is that it uses less wire for a given maximum load capacity over any other wire configuration. Probably the primary reason we have three phase transmission lines even in the suburbs. More power less wire. Tap of of any two phases with a step-down transformer and bring in the 110/220 volts to the houses.

Using the sine function of three phases 120 degrees apart, and the fact that power is voltage squared over resistance, the three sine waves produce a perfectly flat power curve. Absolutely no ripple. You never see any industrial motor over maybe 1/2 HP using single phase because of the vibration forcing from AC ripple. You can have very large motors running smooth and quiet with three phases, where any other configuration, they would be loud as hell making 60 hz. vibration noise. Oh... This ripple that causes noise is reducing the efficiency. Power lost to noise and heat of the rippling torque.

In an industrial setting, I prefer 480 V 3 phase. You can have relatively large motors running off of 16 gauge wire. Moors that would take 10 gauge or larger wire with 120 volt single phase.

This trigonometric sine function is also one reason why straight 6 engines are among the best for torque vs. cubic inches.
 
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