Problem: 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.

Question: "Who's theory did not have a more precise symmetry for conserved energy and momentum?"

Answer: "Noether's theory"

OPTIONS:
- no
- yes
Answer: yes

Question:
Tuesday, September 11, 2001, dawned temperate and nearly cloudless in the eastern United States. Millions of men and women readied themselves for work. Some made their way to the Twin Towers, the signature structures of the World Trade Center complex in New York City. Others went to Arlington, Virginia, to the Pentagon. Across the Potomac River, the United States Congress was back in session. At the other end of Pennsylvania Avenue, people began to line up for a White House tour. In Sarasota, Florida, President George W. Bush went for an early morning run. For those heading to an airport, weather conditions could not have been better for a safe and pleasant journey. Among the travelers were Mohamed Atta and Abdul Aziz al Omari, who arrived at the airport in Portland, Maine. Boston: American 11 and United 175. Atta and Omari boarded a 6:00 A.M. flight from Portland to Boston's Logan International Airport. When he checked in for his flight to Boston, Atta was selected by a computerized prescreening system known as CAPPS (Computer Assisted Passenger Prescreening System), created to identify passengers who should be subject to special security measures. Under security rules in place at the time, the only consequence of Atta's selection by CAPPS was that his checked bags were held off the plane until it was confirmed that he had boarded the aircraft. This did not hinder Atta's plans. Atta and Omari arrived in Boston at 6:45. Seven minutes later, Atta apparently took a call from Marwan al Shehhi, a longtime colleague who was at another terminal at Logan Airport. They spoke for three minutes. It would be their final conversation. After reading the above, is "Marwan al Shehhi for 3 minutes" the correct answer to the question "Who did Atta talk to in Boston and for how long?"? OPTIONS:
- no
- yes

Answer:
yes

Input: The Washington Supreme Court is asking the Legislature to approve a $90 surcharge on a court filing fee to help provide legal help for the poor in civil cases, Chief Justice Gerry Alexander said Wednesday. "Some might say, why should we support this when we face tough financial times?" Alexander asked in his State of the Judiciary address to a joint session of the Legislature. "It seems to me in America, where we rejoice in the fact that we are a nation devoted to the rule of law, we should not ration access to justice." The recommendation comes from the court's Task Force on Civil Equal Justice Funding, created in 2001 to look for ways to cope with the sparse amount of money available for such cases. As the task force was studying the issue, $900,000 was cut from state support for civil equal justice services. That prompted the state's two main legal services providers - Columbia Legal Services and Northwest Justice Project - to cut their staffs, Alexander said. The change would increase the cost of filing a lawsuit in Superior Court to $200. The total fee would be split, with 54 percent going to counties and 46 percent going to the state for a newly created equal justice account. Alexander also requested money for five additional Superior Court judgeships and one additional District Court judgeships, arguing that increased caseloads require more judges. Two of the Superior Court judges and the District Court judge would be in Clark County, with one Superior Court judge added in the joint district that serves Benton and Franklin counties and one each in Kittitas and Kitsap counties.
"What prompted the state's two main legal services providers to cut their staffs?" is "The $800,000 cut"?

OPTIONS:
- no
- yes
Output: no

Input: Rock layers extend laterally, or out to the sides. They may cover very large areas. This is especially true if they formed at the bottom of ancient seas. Seas are very large areas of water. Over time, sediment builds up on the seabed. They will be covered with the same types of material. As rocks form out of this sediment it will all be the same type. The rocks may be forced up above the water as Earths plates move. Rivers may eventually run across this area. The river will cut into the rock and erode it away. The layers of exposed rock on either side of the river will still match up. Look at the Grand Canyon in Figure 2.27. Its a good example of lateral continuity. You can clearly see the same rock layers on opposite sides of the canyon. The matching rock layers were deposited at the same time. They are the same age.

Does the response "people will settle on the rock" correctly answer the question "When rocks are forced up above the water as Earth plates move what may eventually happen?"?

OPTIONS:
- no
- yes
***
Output: no

Input: Fossils may form in other ways. Fossils can be preserved almost completely. In this process, the organism doesnt change much. As seen below, tree sap may cover an organism. With time, the sap hardens. It turns to into amber. The original organism is preserved. This is very exciting for scientists. They are able to study the DNA of the organism that no longer lives on Earth. Some animals have been found frozen in ice. Others have been found in tar pits after falling in. Molds and casts are another way organisms can be fossilized. Have you ever walked in soft mud and left footprints? Once in a while, these traces of organisms can be preserved. In this case, nothing is left of the organism. A mold is an imprint of an organism that is preserved in rock. The organisms remains break down completely. There is nothing left of the original plant and animal.
"How is a mold of an footprint made?" is "An animal or a plant organism breaks down completely and preserved in a rock"?

OPTIONS:
- no
- yes
Output:
yes