Bad Astronomy and Universe Today Forum - View Single Post - Hypothetical variable mass in hypo variable G?

nutant gene 71 · #75 (**permalink**) 13-July-2005, 05:07 AM

WHAT HAPPENS TO THE KILOGRAM IN A VARIABLE G?

I'd like to add this, how I see it. I don't know if any of this is true or not, and will not know for certain until such time that we find G varies, so for now this is all hypothetical.

I suspect, per my above reasonings, that the kilogram, which is an arbitrary unit of mass (and with which we also calculate weight), is a defined unit in its own right. Taking the same representative mass and putting it elsewhere where G might be different does not change the mass itself, except in how it interacts with other mass at that locale. This means the same gravitational parameters exist as before, but the size of the material mass may be different. If we use 5G as an example, in that locale, the material size of a representative unit of kilogram would be five times smaller, but still exhibit the same characteristics we know for one kilogram (on Earth). The effect should be that smaller size bonds with other equivalent smaller size, what we can also call "weight" for gravitational, or molecular attraction for chemical, as if the smaller mass weighed more. Not knowing how this will affect chemical bonding, I am forced to leave that to some future study. And ditto for how it affects metal springs, or rocket propulsion, both unknowns. I assume that "heavier" gravitational mass will somehow affect these, but can't guess how. Obviously the Cassini-Huygens springs worked, though operating in extreme cold space (which might make them brittle?) and launched the separated craft away from the mother craft without mishap. But I do suspect that this different "kilogram", which is heavier than our kilogram per volume, does affect gases and matter. There should be more compactness to the planet cores for the gas giants, if such a core exists, and there should be more abundant gas retention per mass. This means that even if Jupiter's core planet is only two Earth masses (in size and volume) it may retain an atmosphere that is substantially greater than if Earth was twice its own size here. I can't calculate this, since I don't know how, so treat this only as a conceptual idea worth examining. When I learn how to calculate it, I will. Separately, though I am not yet ready to release it, I did calculate what the gravitational mass is for the hydrogen atoms in 99.9% of deep space (I used one atom of hydrogen per cubic centimeter of space), away from those tiny galaxy islands of electromagnetic radiant energy, and came up with a startling number, where G is 100,000 times what it is on Earth. When I applied this greater G against a gravitational-redshift value (measured on Earth), I came up with close to Hubble's constant. But that's all I can say for now, not ready to show this yet.

Overall, I am intrigued by the idea that maybe we don't have the G "constant" right, and that perhaps its variance had been (very well) hidden from us all this time. Do I know this for sure? Hardly! I'm fascinated by it. And if it's self delusion, then it's self delusion, and no loss to anybody. But if it's right, how exciting it will be to know that the isotropic universe is still homogenous, but at a substantially higher G, and that the galaxies and stars within them are but low G islands within the cosmic scale of things. If we find that G is variable, our universe is a very different place from what we had thought before, and very exciting too.

Well, gotta walk the dogs on the beach and as usual look up at the sky, except today it's more of the same, cloudy. I hope I added something of value to you all in considering these ideas, as I know for sure that you had added something of value to me by questioning them. Cheers.