uh, how many dimensions exist? is time a dimension, and can someone explain what is space if it doens't have anything?
2006-12-21 10:04:11 · 6 answers · asked by Kamie S 1 in Science & Mathematics ➔ Other - Science
Well, string theorists used to say there were 26 dimensions, including space and time. Now they're looking at theories that involve either 10 or 11 dimensions. If you're interested in this subject, an excellent book to read is Stephen Hawking's A Brief History of Time. It doesn't cover the most up to date topics in string theory, but he does a good job explaining cosmology in general.
I have a very strong math background and some physics background, but I continue to find interesting observations in Hawking's book. However, the book is written at a lay level.
2006-12-21 10:14:06 · answer #1 · answered by robert 3 · 0⤊ 0⤋
There are three dimensions in our physical universe.
Time is not a dimension. Becuase of time illusion, people think they can journey to the past or to the future. But there is no past and no future. This is a big, ever lasting NOW. Human beings, because they have memories, concluded that past exists. Our memories do not prove that past exist, it only proves that everything is changing.
Since we do not have time, we devloped watches and other methods to measure time.
Q - How do we measure the change?
A - By another change. Because there is not time in the physical world. Time is an illusion created by human mind.
If you meditate you will understand what I mean.
Best regards,
2006-12-21 11:07:34 · answer #2 · answered by Sahaja Yogi 2 · 3⤊ 0⤋
Including time, there are four dimensions. String theory in physics postulates 10 dimensions, but has not been empirically proven yet - it's still all theoretical. Empty space is just that - nothing. A (semi-perfect) vacuum.
2006-12-21 10:14:09 · answer #3 · answered by eri 7 · 0⤊ 0⤋
we've 4 dimensions. Time... being the fourth. no individual, i imagine, can say for particular if Hell is a length. Or if it truly is even an area. some human beings imagine that it truly is more beneficial of a body of ideas, of psychological torture, than a actual realm. in my opinion i imagine it truly is both...
2016-11-28 02:48:33 · answer #4 · answered by Anonymous · 0⤊ 0⤋
To solve his extended relativity equations, Einstein needed 9-dimensional vectors so, as far as we know, the answer is nine.
Time is not considered a dimension by most physicists.
2006-12-22 02:35:03 · answer #5 · answered by jacquesh2001 6 · 0⤊ 0⤋
hmmmmmmmmmmmmmmmmmmmmmmmmm
dunno
2006-12-21 10:07:54 · answer #6 · answered by Kia 2 · 0⤊ 6⤋