In fact, highly precise atomic clocks were carried arounfd in planes, and time dilationof SR was confirmed. Gravitational photon redshift was also confirmed. That's all I can think of...
I'm sort of confused about Christofel symbols being called tensors. I thought that to be considered a tensor, the tensor had to obey the standard component transformation law. For example...
I was surprised to learn that Newtonian theory predicts light being curved by gravity; the most famous confirmation of GR is light deflection, and to learn classical, Newtonian gravitational fields could deflect light came as something of a shock. (Although I am fully aware that GR predicts the...
Interesting, but I don't think the decline of Rome can solely be attributed to lead pipes ... did you know, however, that Czar Ivan the Terrible's homicidal mood swings were probably caused by mercury poisoning? Ivan sufferred from terrible arthritis, and many of the drugs prescribed to him were...
I wish I could criticize the whole mess ... but I live in Texas, where Gov. Perry wants sodomy to be illegal. http://www.sodomylaws.org/usa/usnews52.htm
Agreed! I'm tired of hearing 'our society is going to collapse' rhetoric. Compared to the times of the Roman Empire (even compared to the early 1900's!), we are infinitely better off today. Life expectancies have skyrocketed. Income has drastically risen. Crime has fallen. Etc!
While this continues to be a hot topic of debate among historians, the Roman Empire 'fell' for many reasons. (I put qoutes around fell because Rome really didn't collapse overnight- even well into the 1000's, many of its institutions still existed. To be precise, Rome experienced a decline...