What was the first name of the person who calculated critical mass of a sphere of uranium in a theoretical paper? Answer the above question based on the context below: At Birmingham, Oliphant's team had reached a different conclusion. Oliphant had delegated the task to two German refugee scientists, Rudolf Peierls and Otto Frisch, who could not work on Oliphant's radar project because they were enemy aliens and therefore lacked the necessary security clearance. Francis Perrin had calculated the critical mass of uranium to be about 40 tonnes (39 long tons; 44 short tons). He reckoned that if a neutron reflector were placed around it, this might be reduced to 12 tonnes (12 long tons; 13 short tons). Peierls attempted to simplify the problem by using the fast neutrons produced by fission, thus omitting consideration of moderator. He too calculated the critical mass of a sphere of uranium in a theoretical paper written in 1939 to be "of the order of tons".Peierls knew the importance of the size of the critical mass that would allow a chain reaction to take place and its practical significance. In the interior of a critical mass sphere, neutrons are spontaneously produced by the fissionable material. A very small portion of these neutrons are colliding with other nuclei, while a larger portion of the neutrons are escaping through the surface of the sphere. Peierls calculated the equilibrium of the system, where the number of neutrons being produced equalled the number escaping.Niels Bohr had theorised that the rare uranium-235 isotope, which makes up only about 0.7% of natural uranium, was primarily responsible for fission with fast neutrons, although this was not yet universally accepted. Frisch and Peierls were thus able to revise their initial estimate of critical mass needed for nuclear fission in uranium to be substantially less than previously assumed. They estimated a metallic sphere of uranium-235 with a radius of 2.1 centimetres (0.83 in) could suffice. This amount represented approximately 1 kilogram (2.2 lb) of uranium-235. These results led to the FrischPeierls memorandum, which was the initial step in the development of the nuclear arms programme in Britain. This...
----
Answer: Rudolf
Q: What were the names of the four people who were playing a confidence game with Richard from the beginning? Answer the above question based on the context below: Richard Gaddis is a small-time crook with a penchant for con games. To hook marks, he acts like a well-to-do businessman, dressing like one and driving a Mercedes-Benz S500, believing that one must look like a professional in order to be a successful conman. Gaddis is searching for a new partner with whom he can perform more sophisticated cons. He discovers Rodrigo after he sees the young man playing some minor con games in a casino-bar. When Rodrigo is caught, Gaddis acts the part of a vice officer to save him from being arrested. Rodrigo's contribution is a face and naive manner so trustable that he is able to con anyone, while Richard is both completely unprincipled and clever. After several small tests to determine Rodrigo's trustworthiness, he suggests a partnership, to which Rodrigo quickly agrees. Although Rodrigo distrusts Richard greatly, he agrees to partner him on a gigantic scam, provided he gets a percentage of the money gained to help his ailing father, who is in trouble because of his gambling debts. Richard accepts, and they plan to sell a fraudulent version of a silver certificate currency note to William Hannigan, a rich collector who is in town. Gyllenhaal plays Gaddis' sister Valerie, a concierge at a hotel. When Hannigan takes a fancy to the uptight but very sexy Valerie, Gaddis is forced to pull her into the scam, the price of which is Richard's admission to their brother Michael that he has cheated him out of his share of their inheritance. The plot twists constantly as each of the characters becomes more deeply invested in the scam, and the ever-deceitful Richard tries to cheat Rodrigo, Valerie and Michael out of their share of the take. In the twist ending, it is revealed that all the major players involved, including Rodrigo and Hannigan, were playing a confidence game against Gaddis from the very beginning, so that Valerie and Michael could rightfully take their share of their inheritance.
A: Rodrigo
What are the first names of the people who have sex in an automobile? Answer the above question based on the context below: In 1996, treasure hunter Brock Lovett and his team aboard the research vessel Akademik Mstislav Keldysh search the wreck of RMS Titanic for a necklace with a rare diamond, the Heart of the Ocean. They recover a safe containing a drawing of a young woman wearing only the necklace dated April 14, 1912, the day the ship struck the iceberg. Rose Dawson Calvert, the woman in the drawing, is brought aboard Keldysh and tells Lovett of her experiences aboard Titanic. In 1912 Southampton, 17-year-old first-class passenger Rose DeWitt Bukater, her fiance Cal Hockley, and her mother Ruth board the luxurious Titanic. Ruth emphasizes that Rose's marriage will resolve their family's financial problems and retain their high-class persona. Distraught over the engagement, Rose considers suicide by jumping from the stern; Jack Dawson, a penniless artist, intervenes and discourages her. Discovered with Jack, Rose tells a concerned Cal that she was peering over the edge and Jack saved her from falling. When Cal becomes indifferent, she suggests to him that Jack deserves a reward. He invites Jack to dine with them in first class the following night. Jack and Rose develop a tentative friendship, despite Cal and Ruth being wary of him. Following dinner, Rose secretly joins Jack at a party in third class. Aware of Cal and Ruth's disapproval, Rose rebuffs Jack's advances, but realizes she prefers him over Cal. After rendezvousing on the bow at sunset, Rose takes Jack to her state room; at her request, Jack sketches Rose posing nude wearing Cal's engagement present, the Heart of the Ocean necklace. They evade Cal's bodyguard, Mr. Lovejoy, and have sex in an automobile inside the cargo hold. On the forward deck, they witness a collision with an iceberg and overhear the officers and designer discussing its seriousness.
----
Answer:
Jack