General relativity includes a dynamical spacetime, so it is difficult to see how to identify the conserved energy and momentum. Noether's theorem allows these quantities to be determined from a Lagrangian with translation invariance, but general covariance makes translation invariance into something of a gauge symmetry. The energy and momentum derived within general relativity by Noether's presecriptions do not make a real tensor for this reason. Einstein argued that this is true for fundamental reasons, because the gravitational field could be made to vanish by a choice of coordinates. He maintained that the non-covariant energy momentum pseudotensor was in fact the best description of the energy momentum distribution in a gravitational field. This approach has been echoed by Lev Landau and Evgeny Lifshitz, and others, and has become standard. The use of non-covariant objects like pseudotensors was heavily criticized in 1917 by Erwin Schrodinger and others.

When did the standard approach to energy momentum become criticized?

Life for the partners of Cates, Katalinic & Lund holds little of the glamour one might expect from a career in law. Instead of lunches at Lutce, they caucus at the Palace Diner in Queens. Wooing clients means passing out fliers on street corners, not securing box seats at Madison Square Garden. To make ends meet, one partner stacks pipe and cleans the yard at a plumbing warehouse. Another handles urine samples in a hospital lab. A sign of failure, of a feeble economy, perhaps? Hardly. They are heeding the call of a growing pool of law schools, which are for the first time pointing graduates in a new direction and teaching them how to get there. Forget the lure of large firms, the security of a government post. Here is how to grapple "in the service of justice," as many of the schools put it, instead. Convinced that corporate largess and government programs barely dent the nation's legal needs, the law schools are urging graduates to buck tradition, pass up big salaries and ignore mushrooming student debt to join tiny neighborhood practices or simply start their own, all with an eye toward charging no more than their clients can afford. This is not pro bono legal work; it is "low bono," a term the schools coined to define the atypical kind of law career they are training students for. While its practitioners do charge for their services, they are also dead set on turning no one away - or at least as few as possible. "When you go into this kind of social justice law, it's really brutal and you're almost guaranteed to struggle for a couple of years before there's a light at the end of the tunnel," said Fred Rooney, director of the Community Legal Resource Network at City University of New York School of Law, from which the lawyers of the newly formed Cates, Katalinic & Lund graduated last May. "But if our graduates don't do it, the millions of people who cannot access justice in this country will continue to soar." The movement, primly called the consortium, started four years ago by CUNY, Northeastern University, the University of Maryland and St. Mary's Law School in Texas. (St. Mary's later dropped out.) Since then, it has drawn seven additional law schools to its ranks: the University of Michigan, Rutgers and Syracuse Law Schools, New York Law School, University of New Mexico School of Law, Thomas M. Cooley Law School and Touro Law School. It has elicited at least initial interest from 19 more.

What kind of legal work do recent graduates of City University of New York School of Law tend to find, which pays very little?

An archaeological party explore some caverns underground . Dr. Campbell and Dr. Hughes are the two leaders of the archaeological expedition , and get separated . While Dr. Hughes finds an alien corpse with a fossilized diamond , Dr. Campbell finds hieroglyphics at the cost of the party except for Hughes and himself . Two years later , Campbell and his assistant Holly are digging up the bones of Yonggary , a gargantuan dinosaur 50 times the size of a tyrannosaurus rex . Out of nowhere , people slowly are being killed around the site . While Holly is working Dr. Hughes , who has been legally dead for 2 years , goes to Holly and tells her to stop the dig . Dr. Campbell comes into the tent and sends Dr. Hughes off . Holly quits the expedition when another '' Accident '' occurs . In the town bar , Dr. Hughes finds Holly and takes her back to her Hotel room to tell her why he thinks the bones of the Dinosaur , Which he calls Yonggary , are going to bring the end of the world . After explaining , Holly and Hughes go to the site to stop Campbell but it is too late and Aliens resurrect Yonggary . After Yonggary's first appearance , the Army comes in and takes Holly and Campbell to an army base when Yonggary is dispatched by the aliens again . The army sends choppers after Yonggary , but he destroys them . Yonggary is then sent to the city and does some damage , where some jets attack him . Then Yonggary is transported to a power plant where he is attacked by rocket pack soldiers . During the fight , Hughes and Holly find out that the diamond on Yonggary's forehead is the device giving the aliens control of Yonggary .
At what type of site are people suddenly being killed?