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Thermal conductivity gauges rely on the fact that the ability of a gas to conduct heat decreases with pressure. In this type of gauge, a wire filament is heated by running current through it. A thermocouple or Resistance Temperature Detector (RTD) can then be used to measure the temperature of the filament. This temperature is dependent on the rate at which the filament loses heat to the surrounding gas, and therefore on the thermal conductivity. A common variant is the Pirani gauge which uses a single platinum filament as both the heated element and RTD. These gauges are accurate from 10 torr to 103 torr, but they are sensitive to the chemical composition of the gases being measured.
A Pirani gauge is accurate within what ranges?
A: 10 torr to 103 torr

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The Royal Canadian Navy (RCN), headed by the Commander of the Royal Canadian Navy, includes 33 warships and submarines deployed in two fleets: Maritime Forces Pacific (MARPAC) at CFB Esquimalt on the west coast, and Maritime Forces Atlantic (MARLANT) at Her Majesty's Canadian Dockyard in Halifax on the east coast, as well as one formation: the Naval Reserve Headquarters (NAVRESHQ) at Quebec City, Quebec. The fleet is augmented by various aircraft and supply vessels. The RCN participates in NATO exercises and operations, and ships are deployed all over the world in support of multinational deployments.
How many warships does the Royal Canadian Navy have?
A: 33

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The rebellion of fellow Armenians in Nagorno-Karabakh had an immediate effect in Armenia itself. Daily demonstrations, which began in the Armenian capital Yerevan on February 18, initially attracted few people, but each day the Nagorno-Karabakh issue became increasingly prominent and numbers swelled. On February 20, a 30,000-strong crowd demonstrated in Theater Square, by February 22, there were 100,000, the next day 300,000, and a transport strike was declared, by February 25, there were close to 1 million demonstrators about a quarter of Armenia's population. This was the first of the large, peaceful public demonstrations that would become a feature of communism's overthrow in Prague, Berlin, and, ultimately, Moscow. Leading Armenian intellectuals and nationalists, including future first President of independent Armenia Levon Ter-Petrossian, formed the eleven-member Karabakh Committee to lead and organize the new movement.
What percentage of Armenia's total population protested on February 25?
A: about a quarter

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Tito was notable for pursuing a foreign policy of neutrality during the Cold War and for establishing close ties with developing countries. Tito's strong belief in self-determination caused early rift with Stalin and consequently, the Eastern Bloc. His public speeches often reiterated that policy of neutrality and cooperation with all countries would be natural as long as these countries did not use their influence to pressure Yugoslavia to take sides. Relations with the United States and Western European nations were generally cordial.
With whom did Tito's belief in self-determination cause a rift?
A:
Stalin