"Another question to ponder... When they fail, its because you no longer see an arc through the little glass window. Could it still be passing electricity, but since there is no air you can no longer see it???? Or there is no longer heat as the oxygen is removed? Curious minds want to know?? As the radar continues to work perfectly when you see NO arc, I'm assuming there is NO longer transfer of electricity...."
i would agree, the arc is visible because of certain elements and particles in the atmosphere.
The same creates resistance which creates heat.
Extract all elements and particles in the space and you loose the ability to see the arc and you eliminate the heat?
And as far as in a vacuum or vacuum tube, there can't be "nothing"
There is still "something" in there. Suchas an introduced inert and purified gas, etc. There is still something in the vacuum.
Otherwise in a perfect vacuum, the container would collapse to the point of zero space.
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Today's Featured Article - Fordson Model N: Field Service Operations and Lubrication - by Anthony West. The daily or weekly servicing of any vehicle is of the utmost importance, and in days gone by when our favorite tractors were doing an important and Commercially vital job on the farm, these service operations would make a major difference to the running costs and economy of the farm. This being so, it surprises me to see how many enthusiasts attending rallies, shows etc, seem to be unaware of the importance of this constant attention. Possibly the modern machine with its 6,000 mile or even once
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