Recent content by jeffinbath

I think you are not giving enough thought about the energy or work done to produce the voltage that you are applying to the plates in the first place. It is that energy that is being used to attract the capacitor plates to each other. It is best just to go back to first principles by considering...

Inside every “permanent magnet” there is an internal demagnetizing force trying to demagnetize it. I find it useful to think of a “permanent magnet” as being like a box of matches with the match heads being little N poles that are all repelling each other but are being forced to lie next to each...

As our sun and the other stars evolved from gravitationally led aggregations of hydrogen gas which permeated our early universe then that is an example of a high entropy system becoming a low entropy system and the so-called "arrow of time etc." was reversed?

I once read that if you dropped a dead mouse into a plastic beaker of hydrofluoric acid you would finish up with a clear solution. I have always wondered how true that was. Does anyone here know?

Yes, I still remember a bit of a sentence I read in Mellor's Inorganic Chemistry book from 70 years ago which said that the chemist Dulong ".....lost three fingers and one eye " making nitrogen trichloride !

Thank you for that clarification.

Am I correct in thinking that the gravitational field of the moon passes straight through the Earth as if in a vacuum, to produce a tidal bulge on the opposite side to where the moon is, while the Earth’s much stronger field cannot actually bend or modify it as it passes through but can only add...

Yes I had a passion for it from the age of about 10. I used to enjoy mixing up household chemicals and in my early teens loved reading the ancient Mellors Inorganic Chemistry book which my dad had. I then went on to spend most of my working life mixing chemicals up in various labs to make stuff...

More and more satellites will be at the end of their lives over the next few years and falling out of orbit. Is there not a risk to the thousands of high flying airliners if these small objects have still not fully burned up by the time they hit the 12 mile high region do you think?

No, I certainly do not think that. The band-waggon effect like the ancient's idea of sun going around the Earth is the prime example, where the brightest minds did not doubt it for many hundreds of years.

The tired light model does not deal with it as a small proportion of the red shift which is indisputably mainly caused by the Doppler effect.

With the latest view that free space has virtual particles constantly popping in and out of existence, is it now rational to argue that light can electromagnetically travel through free space for ever and ever without the slightest energy loss? Edwin Hubble found that the general red shift of...

I suppose one could say that the standing wave pattern made by the microwaves with its heated blue “antinodes” and cool white “nodes”, is not fundamentally different in principle from the light generated pattern of standing waves I used to make the little hologram in my avatar here.

Following on from the recent discussion on the gap size in the metal grill covering the door of a microwave oven, I thought up a way to actually enable one to see some of the standing microwave patterns going on in a typical oven . I bought a 20” x 20”cobalt chloride soaked cloth from Amazon...