QUES: 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.
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MY QUESTION: Which of the scientists believed non-covariant energy momentum pseudotensor was the best description of energy momentum in a gravitational field?

QUES: 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.
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MY QUESTION: Wooing clients means passing out fliers on street corners for partners of what company?

QUES: (Financial Times) -- The increasing amount of personal information that can been gleaned by computer programs that track how people use Facebook has been revealed by an extensive academic study. Such programmes can discern undisclosed private information such as Facebook users' sexuality, drug-use habits and even whether their parents separated when they were young, according to the study by Cambridge university academics. In one of the biggest studies of its kind, scientists from the university's psychometrics team and a Microsoft-funded research centre analysed data from 58,000 Facebook users to predict traits and other information that were not provided in their profiles. The algorithms were 88 per cent accurate in predicting male sexual orientation, 95 per cent for race and 80 per cent for religion and political leanings. Personality types and emotional stability were also predicted with accuracy ranging from 62-75 per cent. Facebook declined to comment. The study highlights growing concerns about social networks and how data trails can be mined for sensitive information, even when people attempt to keep information about themselves private. Less than 5 per cent of users predicted to be gay, for example, were connected with explicitly gay groups. Michal Kosinksi, one of the report's authors, told the Financial Times that the university's techniques could easily be replicated by companies to infer personal attributes a person did not wish to share, such as sexual orientation or political views: "We used very simple and generic methods. Marketing companies and internet companies could spend much more time and resources, and hence get much higher accuracy than we did." Last week , the EU agreed to water down proposals for a radical overhaul of data privacy regulation. The move reflects governments' reluctance to impede internet businesses that might spur economic growth, and follows fierce lobbying from technology companies including Facebook and Google. Personal data has become big business. Wonga, the UK online lender, makes credit judgments within seconds based on thousands of pieces of information, including an applicant's Facebook profile. Tesco, the supermarket chain, this month started to use its customers' shopping histories to sell targeted online advertising. The report also revealed some unexpected correlations -- such as people who liked 'curly fries' having higher IQs, while those who like Facebook's "Sliding on Floors With Your Socks On" page were unlikely to use drugs.
Do you have any questions?
MY QUESTION: Has Facebook commented on the ability of computer programs that track how people use Facebook to discern undisclosed private information?

QUES: Tropical climates are found around the equator. These climates have warm temperatures year round. Tropical climates may be very wet or wet and dry. Tropical wet climates occur at or very near the equator. They have high rainfall year round. Tropical rainforests grow in this type of climate. Tropical wet and dry climates also occur near the equator. They receive less rainfall. Most of the rain falls in a single season. The rest of the year is dry. Few trees can withstand the long dry season. The main plants are grasses. Dry climates receive very little rainfall. They also have high rates of evaporation. This makes them even drier. Deserts can get less than 25 centimeters of rain per year. Thats less than 10 inches per year. How much rain do you get at your house?
Do you have any questions?
MY QUESTION:
Which climates have high rates of evaporation?