Problem: In 1958, he became a Boy Scout and fulfilled a requirement for the photography merit badge by making a nine-minute 8 mm film entitled The Last Gunfight. Years later, Spielberg recalled to a magazine interviewer, "My dad's still-camera was broken, so I asked the scoutmaster if I could tell a story with my father's movie camera. He said yes, and I got an idea to do a Western. I made it and got my merit badge. That was how it all started." At age thirteen, while living in Phoenix, Spielberg won a prize for a 40-minute war film he titled Escape to Nowhere, using a cast composed of other high school friends. That motivated him to make 15 more amateur 8mm films.:548 In 1963, at age sixteen, Spielberg wrote and directed his first independent film, a 140-minute science fiction adventure called Firelight, which would later inspire Close Encounters. The film was made for $500, most of which came from his father, and was shown in a local cinema for one evening, which earned back its cost.
How much money did Spielberg spend to film Close Encounters?
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Answer: $500


Problem: The axiomatization of mathematics, on the model of Euclid's Elements, had reached new levels of rigour and breadth at the end of the 19th century, particularly in arithmetic, thanks to the axiom schema of Richard Dedekind and Charles Sanders Peirce, and geometry, thanks to David Hilbert. At the beginning of the 20th century, efforts to base mathematics on naive set theory suffered a setback due to Russell's paradox (on the set of all sets that do not belong to themselves). The problem of an adequate axiomatization of set theory was resolved implicitly about twenty years later by Ernst Zermelo and Abraham Fraenkel. Zermelo–Fraenkel set theory provided a series of principles that allowed for the construction of the sets used in the everyday practice of mathematics. But they did not explicitly exclude the possibility of the existence of a set that belongs to itself. In his doctoral thesis of 1925, von Neumann demonstrated two techniques to exclude such sets—the axiom of foundation and the notion of class.
What caused a setback in naive set theory at the beginning of 20th century?
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Answer: Russell's paradox


Problem: The Candidate Conservation Agreement is closely related to the "Safe Harbor" agreement, the main difference is that the Candidate Conservation Agreements With Assurances(CCA) are meant to protect unlisted species by providing incentives to private landowners and land managing agencies to restore, enhance or maintain habitat of unlisted species which are declining and have the potential to become threatened or endangered if critical habitat is not protected. The FWS will then assure that if, in the future the unlisted species becomes listed, the landowner will not be required to do more than already agreed upon in the CCA.
What agreement is the Safe Harbor Agreement primarily different from?
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Answer:
unanswerable