Problem: Please answer a question about the following article about Warsaw Pact:
On 25 February 1991, the Warsaw Pact was declared disbanded at a meeting of defense and foreign ministers from remaining Pact countries meeting in Hungary. On 1 July 1991, in Prague, the Czechoslovak President Václav Havel formally ended the 1955 Warsaw Treaty Organization of Friendship, Cooperation, and Mutual Assistance and so disestablished the Warsaw Treaty after 36 years of military alliance with the USSR. In fact, the treaty was de facto disbanded in December 1989 during the violent revolution in Romania, which toppled the communist government, without military intervention form other member states. The USSR disestablished itself in December 1991.
In which country did Warsaw Pact officials meet to dissolve the alliance?
A: Hungary
Problem: Please answer a question about the following article about Spectre (2015 film):
Further references to Fleming's material can be found throughout the film; an MI6 safehouse is called "Hildebrand Rarities and Antiques", a reference to the short story "The Hildebrand Rarity" from the For Your Eyes Only short story collection.[citation needed] Bond's torture by Blofeld mirrors his torture by the title character of Kingsley Amis' continuation novel Colonel Sun.[citation needed]
What is the name of a location in Spectre which draws its inspiration from an Ian Fleming short story?
A: Hildebrand Rarities and Antiques
Problem: Please answer a question about the following article about Vacuum:
Ion gauges are used in ultrahigh vacuum. They come in two types: hot cathode and cold cathode. In the hot cathode version an electrically heated filament produces an electron beam. The electrons travel through the gauge and ionize gas molecules around them. The resulting ions are collected at a negative electrode. The current depends on the number of ions, which depends on the pressure in the gauge. Hot cathode gauges are accurate from 10−3 torr to 10−10 torr. The principle behind cold cathode version is the same, except that electrons are produced in a discharge created by a high voltage electrical discharge. Cold cathode gauges are accurate from 10−2 torr to 10−9 torr. Ionization gauge calibration is very sensitive to construction geometry, chemical composition of gases being measured, corrosion and surface deposits. Their calibration can be invalidated by activation at atmospheric pressure or low vacuum. The composition of gases at high vacuums will usually be unpredictable, so a mass spectrometer must be used in conjunction with the ionization gauge for accurate measurement.
Why does a mass spectrometer need to be used with gauge to be accurate at high vacuum gas measurement?
A: composition of gases at high vacuums will usually be unpredictable
Problem: Please answer a question about the following article about To Kill a Mockingbird:
Charles Shields, who has written the only book-length biography of Harper Lee to date, offers the reason for the novel's enduring popularity and impact is that "its lessons of human dignity and respect for others remain fundamental and universal". Atticus' lesson to Scout that "you never really understand a person until you consider things from his point of view—until you climb around in his skin and walk around in it" exemplifies his compassion. She ponders the comment when listening to Mayella Ewell's testimony. When Mayella reacts with confusion to Atticus' question if she has any friends, Scout offers that she must be lonelier than Boo Radley. Having walked Boo home after he saves their lives, Scout stands on the Radley porch and considers the events of the previous three years from Boo's perspective. One writer remarks, "... [w]hile the novel concerns tragedy and injustice, heartache and loss, it also carries with it a strong sense [of] courage, compassion, and an awareness of history to be better human beings."
Who wrote the only book length- biography of Harper Lee?
A:
Charles Shields