Recent content by tardis

Thank you Farsight. That is very helpful.

Take a look at http://sify.com/news/fullstory.php?id=14214715 http://english.people.com.cn/200605/29/eng20060529_269286.html Currently on news sites - the promise of invisibility lurks just out of reach..

Thanks that is consistent with the calculations. I'm having trouble understanding work and impulse. Specifically, consider a mass with a rocket on it - the rocket burns for 1 second regardless of how fast the mass is currently moving, and the total chemical potential energy in the rocket...

Is the energy required to accelerate mass m 1 meter/sec2 for 1 second, the same whether that mass is: a) currently traveling at 3 meters per sec or b) 300 meters per sec?

To add to the question, what would constitute "looking". Would a video camera that displays the image on a screen in an empty sealed basement that no one can enter be considered "looking? What if the images were captured digitally and were later destroyed without anyone looking at it? or...

Thanks to both of you for taking the time to share. This is just what I was looking to find. It provides a several points to continue my reading. Glad to see that there are views on stability - this just seemed like a fertile area for consideration. With little in the general science and...

Is that really true? It seems as if t was 1 year less last year and x,y,z (the observable or known universe) some percent of a light year smaller. So the 4Ds would seem to be possible at a size less than it is today in the 11D model. I was wondering whether there was a mathematical/theoretical...

Many books and threads state that the 7 other dimensions are really small. For the 11D model to work, how small could the other 4 (x,y,z,t) theoretically/mathematically be for a stable universe model? Tardis

Assuming we accept the 11 dimensional calabi-yau model, does this model REQUIRE that the other three dimensions be very large or is this just a bonus? Either way, is there a minimum size needed for the 4 large dimensions to make this model work?

Good thread and interesting response Servelan. Having grown up in the east (global) and then moved to the US, I recall that there were words in Asia that spoke to different shades of shame, pride and honor. Shades that are not found (at least to the average Joe) in English. The difference in...