QUOTE(Rick @ May 23, 2007, 07:40 AM)
QUOTE(Lindsay @ May 22, 2007, 06:24 PM)
[vacuum is emptiness]
1. Is this a statement of fact, or is it just one of faith?
2. If it is a proveable fact, how does one go about proving it to be such?
3. Is there is such a thing as an absolute vacuum, that is, one which contains no atoms at all?
4. If so, can this phenomenon be measured and proved to be as claimed?
What is a soft vacuum?
1. It's an empirical fact. See various astronomy references.
2. Yes. Take a cubic meter with one atom in it and divide it in half. One half will have a 50-50 chance of having no atoms in it.
3. If you wanted to spend a lot of money, you could produce a total vacuum and spend some time proving it was empty by scanning it with a fine laser.
4. A soft vacuum is less costly to produce than a hard vacuum. Soft vacuums are used for various test and research purposes, and also in Cathode Ray Tubes (CRTs) and magnatrons. Soft vacuum is measured in torr. See
http://en.wikipedia.org/wiki/Torr As one who did some basic studies in physics, decades ago, and who is still very interested in it, Rick, I really appreciate you taking the trouble to answer my questions which I just got around to reading. I found your answers very congruent with my philosophy of religion.
In the Spirit of dialogue and of the new thread, ON RELIGION, started by Max, here, at this point
--I am always open to change-- is what I believe this has to do with what I call G�D, or, as you term IT, Nature:
Our very ancient and unsophisticated ancestors, IMO, sensed gods in almost everything and everywhere. And, loving to fight, they warred in the name of their gods.
Later, the more sophisticated ancients simple lumped all the gods into one. The semitics called Him:
Elohim (the highest power),
Allah (the highest power),
The Greeks and Latins called Him, Theos (the highest idea), Deus, Deos, Dieu (the highest idea),
We anglos called Him, God (the highest Good, Love). All, loving to fight, and claiming to have God on our side, added politics and economics to the mix and continued to "enjoy" the glory of battle.
Certain wise people among the ancients, including Jesus, sought to speak of G�D in a way other than in terms of matter, space and time.
The Semites called it Ruach, Rooka, Ruh--meaning air, wind, breath.
The Latins called it Spiritus, Spirito; the Greeks callled it Pneuma.
We Anglos call it Spirit.
If as you say, there is such a "thing" as vacuum--space without matter, or atoms, then I can just as easily call it Vacuum.
For me, this means that I can say that Nature, or
G�D, is ALL Vacuum, plus all measureable matter within it. I cannot imagine anything beyond that. God, or gods, less than that are, for me, too small.
For me, it is the One Unifying factor.