Problem: The decidedly anti-Aristotelian and anti-clerical music theorist Vincenzo Galilei (ca. 15201591), father of Galileo and the inventor of monody, made use of the method in successfully solving musical problems, firstly, of tuning such as the relationship of pitch to string tension and mass in stringed instruments, and to volume of air in wind instruments; and secondly to composition, by his various suggestions to composers in his Dialogo della musica antica e moderna (Florence, 1581). The Italian word he used for "experiment" was esperienza. It is known that he was the essential pedagogical influence upon the young Galileo, his eldest son (cf. Coelho, ed. Music and Science in the Age of Galileo Galilei), arguably one of the most influential empiricists in history. Vincenzo, through his tuning research, found the underlying truth at the heart of the misunderstood myth of 'Pythagoras' hammers' (the square of the numbers concerned yielded those musical intervals, not the actual numbers, as believed), and through this and other discoveries that demonstrated the fallibility of traditional authorities, a radically empirical attitude developed, passed on to Galileo, which regarded "experience and demonstration" as the sine qua non of valid rational enquiry.
Who was Vincenzo Galilei's oldest son?
The answer is the following: Galileo

Problem: Eisenhower was a golf enthusiast later in life, and joined the Augusta National Golf Club in 1948. He played golf frequently during and after his presidency and was unreserved in expressing his passion for the game, to the point of golfing during winter; he ordered his golf balls painted black so he could see them better against snow on the ground. He had a small, basic golf facility installed at Camp David, and became close friends with the Augusta National Chairman Clifford Roberts, inviting Roberts to stay at the White House on several occasions. Roberts, an investment broker, also handled the Eisenhower family's investments. Roberts also advised Eisenhower on tax aspects of publishing his memoirs, which proved financially lucrative.
What was Clifford Roberts by profession?
The answer is the following: investment broker

Problem: Prompted by legislation in various countries mandating increased bulb efficiency, new "hybrid" incandescent bulbs have been introduced by Philips. The "Halogena Energy Saver" incandescents can produce about 23 lm/W; about 30 percent more efficient than traditional incandescents, by using a reflective capsule to reflect formerly wasted infrared radiation back to the filament from which it can be re-emitted as visible light. This concept was pioneered by Duro-Test in 1980 with a commercial product that produced 29.8 lm/W. More advanced reflectors based on interference filters or photonic crystals can theoretically result in higher efficiency, up to a limit of about 270 lm/W (40% of the maximum efficacy possible). Laboratory proof-of-concept experiments have produced as much as 45 lm/W, approaching the efficacy of compact fluorescent bulbs.
What company first marketed light bulbs using the reflective capsule technique to increase energy efficiency?
The answer is the following: Duro-Test

Problem: In his Physics, book IV, Aristotle offered numerous arguments against the void: for example, that motion through a medium which offered no impediment could continue ad infinitum, there being no reason that something would come to rest anywhere in particular. Although Lucretius argued for the existence of vacuum in the first century BC and Hero of Alexandria tried unsuccessfully to create an artificial vacuum in the first century AD, it was European scholars such as Roger Bacon, Blasius of Parma and Walter Burley in the 13th and 14th century who focused considerable attention on these issues. Eventually following Stoic physics in this instance, scholars from the 14th century onward increasingly departed from the Aristotelian perspective in favor of a supernatural void beyond the confines of the cosmos itself, a conclusion widely acknowledged by the 17th century, which helped to segregate natural and theological concerns.
What belief regarding a cosmic void was accepted by most in the 17th century?
The answer is the following:
a supernatural void beyond the confines of the cosmos itself