Tim Thompson
Muse
- Joined
- Dec 2, 2008
- Messages
- 969
Is the Sun a Cathode?
Now, I neither know nor care about the cathode in Birkeland's lab, assuming he had one (probably the terella). But what about the sun? What kind of a cathode (or "cathode") is the sun? Clearly the sun carries neither negative nor positive constant polarity, since it is seen to simultaneously emit equal numbers of positive protons and negative electrons (equal to the best of our ability to measure equality, which is actually quite substantial). If the solar polarity is switching or in some way time-variable, it must be so on a time scale too short to affect the charge neutrality of the solar wind. Certainly from our provincial, terrestrial point of view, the sun appears to be providing quite a lot of power (roughly 1368 Watts/meter2 on a plane perpendicular to the direction of the sunlight, above Earth's atmosphere). So we would Wiki-assume that the sun must be of positive polarity, which seems the opposite of Mozina's intention.
Quite simply put, empirical science, in the form of direct in-situ measurements of the solar wind composition proves that the sun is not and cannot be a cathode in any conventional sense. Now, as for being a "cathode" (with quotation marks), I can't say, since I have no idea what that is supposed to be.
What's a "cathode" (with quotation marks)? Is it anything like a cathode (without quotation marks)? Our handy-dandy wikipedia cathode "is an electrode through which electric current flows out of a polarized electrical device." They go on to say that it is not true that a cathode polarity must always be negative, and they give an example of a cathode with switching polarity. We also find this: "Consequently, as can be seen from the following examples, in a device which consumes power the cathode is negative, and in a device which provides power the cathode is positive:".What exactly was his "cathode" discharging to RC?
Now, I neither know nor care about the cathode in Birkeland's lab, assuming he had one (probably the terella). But what about the sun? What kind of a cathode (or "cathode") is the sun? Clearly the sun carries neither negative nor positive constant polarity, since it is seen to simultaneously emit equal numbers of positive protons and negative electrons (equal to the best of our ability to measure equality, which is actually quite substantial). If the solar polarity is switching or in some way time-variable, it must be so on a time scale too short to affect the charge neutrality of the solar wind. Certainly from our provincial, terrestrial point of view, the sun appears to be providing quite a lot of power (roughly 1368 Watts/meter2 on a plane perpendicular to the direction of the sunlight, above Earth's atmosphere). So we would Wiki-assume that the sun must be of positive polarity, which seems the opposite of Mozina's intention.
Quite simply put, empirical science, in the form of direct in-situ measurements of the solar wind composition proves that the sun is not and cannot be a cathode in any conventional sense. Now, as for being a "cathode" (with quotation marks), I can't say, since I have no idea what that is supposed to be.
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