If we live in a 3 dimensional world, is there any other dimension in this world?

Question

As far as I know, the 3-D are length, width and depth. What are the other dimension?

Answer 1

your interesting question has a promising answer according to current physics.

there is substantial evidence ( as yielded by experimental data testing the theory of general relativity ) that 3-D space "curves" into the 4 th dimension.

because we exist only as 3-D entities ( as with all matter ), we cannot directly perceive the 4 th dimension except by indirect measurements. these measurements have been made ( "gravitational lensing" etc ) and confirm that space indeed is curved into a dimension at right angles to all the 3 known dimensions. light can be seen to follow the curvature of space in its bending due to gravity.

this phenomenal realization was made by Einstein, who formulated the theory of relativity. it is currently regarded as a superlative theory of matter, energy, and gravity.

to answer your question, YES, there is another spatial 4th dimension. for all day to day practical considerations however, this extra dimension proves to have trivial effect on our lives.

Answer 2

Spacetime can be represented by Cartesian coordinates x,y,z plus ct, which also has the dimensions of length. String theories hypothesize many additional dimensions on very small length scales. High energy physicists are trying to find experimental evidence for these 'inner dimensions', but have not had success yet. Without experimental evidence string theory is just elegant mathematics.

Answer 3

There is a 4th dimension, which is time. We can't actually perceive it, we can only mark its passage with clocks & by observing events. At present we can move only in 3 dimensions. Some have theorized that if we could learn to move in the 4th as well, we could travel through time & bend space so that "warp drive " would be possible. This would certainly revolutionize space travel. These, in fact, are common themes in science fiction. But most scientists think that they'll never be more than fiction. Well, we can dream, can't we?

Answer 4

Mathematically, a 'dimension' is merely something that can be measured and whose value cannot be calculated from any of the other 'dimensions' of the object.

For example, people have height, weight, age, and IQ. This makes them 4-dimensional with only those characteristics measured because, if you know an individuals height, weight, and age, you still can't tell anything about their IQ.

In the same way a characteristic of a particle (such as 'charge' or 'spin') should be considered as merely a name to allow us to to talk about something that's fairly abstract.

Many people refer to time as the '4;th dimension' and it could certainly be taken as such. Then there are particle characteristics such as spin, charge, color, flavor, strangeness, and charm which leads one to suspect that, at the subnuclear level, reality is 10 dimensional.


Doug




Doug

Answer 5

thats all there is, three dimensions. time is only a dimension in the twilight zone. it doesn't really exist in nature. man made it up

Answer 6

Other dimensions include Time and Space, of course it is harder to quantify and test these because as you attempt control one you affect the other. ....this is similar to trying to track the random path of Electrons, as you lock on to one you change its path due to the course nature of the instruments used.

Answer 7

Time?