In both the solutions A and B the curvature is positive, in both three-dimensional space is finite: the universe has a definite size, we can speak of its radius, and, in the case A, of its total mass. In the case A... the density is proportional to the curvature... Thus, if we wish to have a finite density in a static universe, we must have a finite positive curvature.
Willem de SitterRelated topics
case curvature definite density mass proportional radius size space speak static thus wishRelated quotes
The ethic of Reverence for Life prompts us to keep each other alert to what troubles us and to speak and act dauntlessly together in discharging the responsibility that we feel. It keeps us watching together for opportunities to bring some sort of help to animals in recompense for the great misery that men inflict upon them, and thus for a moment we escape from the incomprehensible horror of existence.
Albert Schweitzer
First of all, directing is an idea that you have of a total flow of images that are going on, which are incidentally actors, words, and objects in space. It's an idea you have of yourself, like the idea you have of your own personality which finds its best representation in the world in terms of specific flows of imaginary images. That's what directing is.
Abraham Polonsky
There is, therefore, no difficulty in answering such questions as these. What cause was there why the Universe was placed in such a part of Space? and, Why was the Universe created at such a Time? for, if there be no Space beyond the Universe, it was impossible that it should be created in another place; and if there was no Time before, it was impossible it should be created at another time.
Jonathan Edwards (theologian)
We may define "faith" as the firm belief in something for which there is no evidence. Where there is evidence, no one speaks of "faith." We do not speak of faith that two and two are four or that the earth is round. We only speak of faith when we wish to substitute emotion for evidence. The substitution of emotion for evidence is apt to lead to strife, since different groups, substitute different emotions.
Bertrand Russell
We are beginning to see the entire universe as a holographically interlinked network of energy and information, organically whole and self referential at all scales of its existence. We, and all things in the universe, are non-locally connected with each other and with all other things in ways that are unfettered by the hitherto known limitations of space and time.
Ervin László