Recent content by ptalar

Does the discovery of gravity waves imply the existence of gravitons?

I would say it is happening now. Against the US. Russia, China, ISIS, Iran, etc all cost the US economically either through the cost of funding wars or providing support to allied countries. Hence, the US is 17 trillion in debt. How long can the US go along keeping these adversaries at bay?

The same is happening in the United States. I don't know why history is taught in the classroom it seems nobody learns from history.

Thanks to all for providing input and insight.

If this is the case then why does space expand faster than the speed of light? If the Universe is 13.8 billion years old we should only see back in time to 13.8 billion light years. Yet the visible Universe is roughly 46 billion light years. The rebuttal, as I understand it, is that space can...

Don't forget the Ottoman Empire.

I agree, if we have found all the particles that are predicted, then no new particles. Maybe they can find evidence of strings at the higher energy level? Yes, liquid nitrogen is a big step forward for superconductivity.

Thanks to all who replied with their input. Even going to 6.5 TeV is a big jump from present power levels. I hope we find new discoveries. As far as the magnets, they need to develop room temperature superconducting materials. It is a holy grail of the superconducting community just as...

I was reading many articles last week about the Higgs Boson discovery and I noticed a passage in one of the articles saying that the accelarator at CERN has been operating at half power since it was put on line. Is that a true statement? Anybody? Do they ever intend on running at full...

This might be a good article that can shed some light on the discussion in this thread. http://adsabs.harvard.edu/abs/2004PASA...21...97D

Good article that gives physical feel to what is going on.

24? You jest of course? I am 53. A practicing engineer in Aerospace. I intend to retire in 3 years. I am considering studying cosmology when I retire at 56 as a hobby and to keep my mind stimulated. When it comes to learning your never too old.

Thanks Chalnoth. I believe I understand. What I forget is that me, the observer on earth, has also moved in space, due to expansion since the big bang. This would take what would of been a 42 milliion year journey (for CMBR to reach Earth (observer) from the origin), if both objects were...

In regard to your first assertion I just made a rough engineering approximation to get a physical feel of what was going on. If the size of the visible Universe is 46 billion light years in all directions and the absolute age of the Universe is 14 billion years then I assumed that the rate of...

I am but a simple minded engineer who enjoys cosmology as good mind stimulation. But let me see if I can describe Mr. Watkins initial concern and frame it in a different light, no pun intended. And offer up some logical approach to answering the question. Basic Problem Statement: If the...