Problem: In Meadowvale , California , on June 9 , 1970 , three babies are born at the height of a total eclipse . Due to the sun and moon blocking Saturn , which controls emotions , the babies develop into children who are heartless and uncaring , with no feelings of remorse for their awful offences . Ten years later , in 1980 , Curtis , Debbie and Steven begin to kill the adults around them and are able to escape detection because of their youthful and innocent fa ades . However , when Timmy and Joyce discover their crimes , they find themselves as the targets of the evil children . Their attempt to warn their neighbors about them are ignored . Soon enough , Beverly discovers Debbie 's horrible secret with the newspaper clippings as evidence as proof and learns that she , Curtis and Steven were responsible for the murders . She realizes that Joyce and Timmy were telling the truth all along and confronts her sister for it . Beverly and Mrs. Brody forbids Debbie from hanging out with Curtis and Steven . Debbie responds by killing her older sister in retaliation with a bow and arrow . They soon attempt to murder Joyce and Timmy . However , they fight back and manages to capture Steven and Curtis . While Timmy calls the police from a neighbor 's house , Debbie manages to escape from the backyard and gets inside her mother 's car . She manages to lie about Curits and Steven trying to set her up to take the fall for the attacks . At the end , Curtis and Steven are arrested by the police much to the shock and anger of the town .

Question: "Why did the neighbors ignore Timmy and Joyce's warnings?"

Answer: "10 year old children can't kill adults"
Answer: yes

Problem: Reducing resource use means just what it says using fewer resources. There are lots of ways to reduce our use of resources. Buy durable goods. Choose items that are well made so they will last longer. Youll buy fewer items in the long run, so youll save money as well as resources. Thats a win-win! Repair rather than replace. Fix your bike rather than buying a new one. Sew on a button instead of buying a new shirt. Youll use fewer resources and save money. Buy only what you need. Dont buy a gallon of milk if you can only drink half of it before it spoils. Instead, buy a half gallon and drink all of it. You wont be wasting resources (or money!) Buy local. For example, buy local produce at a farmers market, like the one in Figure 2.20. A lot of resources are saved by not shipping goods long distances. Products bought at farmers markets use less packaging, too! About a third of what we throw out is packaging.

Question: "How is it a win-win to buy durable goods?"

Answer: "You save money as well as resources"
Answer: yes

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

Answer: "Evgeny Lifshitz"
Answer:
no