Input: Article: There are many notable contributors to the field of Chinese science throughout the ages. One of the best examples would be Shen Kuo (10311095), a polymath scientist and statesman who was the first to describe the magnetic-needle compass used for navigation, discovered the concept of true north, improved the design of the astronomical gnomon, armillary sphere, sight tube, and clepsydra, and described the use of drydocks to repair boats. After observing the natural process of the inundation of silt and the find of marine fossils in the Taihang Mountains (hundreds of miles from the Pacific Ocean), Shen Kuo devised a theory of land formation, or geomorphology. He also adopted a theory of gradual climate change in regions over time, after observing petrified bamboo found underground at Yan'an, Shaanxi province. If not for Shen Kuo's writing, the architectural works of Yu Hao would be little known, along with the inventor of movable type printing, Bi Sheng (990-1051). Shen's contemporary Su Song (10201101) was also a brilliant polymath, an astronomer who created a celestial atlas of star maps, wrote a pharmaceutical treatise with related subjects of botany, zoology, mineralogy, and metallurgy, and had erected a large astronomical clocktower in Kaifeng city in 1088. To operate the crowning armillary sphere, his clocktower featured an escapement mechanism and the world's oldest known use of an endless power-transmitting chain drive.

Now answer this question: What are drydocks used for?

Output: to repair boats

Article: Most cotton in the United States, Europe and Australia is harvested mechanically, either by a cotton picker, a machine that removes the cotton from the boll without damaging the cotton plant, or by a cotton stripper, which strips the entire boll off the plant. Cotton strippers are used in regions where it is too windy to grow picker varieties of cotton, and usually after application of a chemical defoliant or the natural defoliation that occurs after a freeze. Cotton is a perennial crop in the tropics, and without defoliation or freezing, the plant will continue to grow.

Question: What machine strips off the entire head of the cotton plant?
Ans: cotton stripper

Here is a question about this article: The Office of the Federal Register publishes the Federal Register, Code of Federal Regulations, and United States Statutes at Large, among others. It also administers the Electoral College.
What is the answer to this question: What office administers the Electoral College?
****
So... The Office of the Federal Register

The problem: Answer a question about this article:
Hellenistic Geometers such as Archimedes (c.287 212 BC), Apollonius of Perga (c.262 c.190 BC), and Euclid (c.325 265 BC), whose Elements became the most important textbook in mathematics until the 19th century, built upon the work of the Hellenic era Pythagoreans. Euclid developed proofs for the Pythagorean Theorem, for the infinitude of primes, and worked on the five Platonic solids. Eratosthenes used his knowledge of geometry to measure the circumference of the Earth. His calculation was remarkably accurate. He was also the first to calculate the tilt of the Earth's axis (again with remarkable accuracy). Additionally, he may have accurately calculated the distance from the Earth to the Sun and invented the leap day. Known as the "Father of Geography ", Eratosthenes also created the first map of the world incorporating parallels and meridians, based on the available geographical knowledge of the era.
Who measured the circumference of the Earth?
****
The answer: Eratosthenes

Problem: Please answer a question about the following article about Steven Spielberg:
Spielberg directed 2015's Bridge of Spies, a Cold War thriller based on the 1960 U-2 incident, and focusing on James B. Donovan's negotiations with the Soviets for the release of pilot Gary Powers after his aircraft was shot down over Soviet territory. The film starred Tom Hanks as Donovan, as well as Mark Rylance, Amy Ryan, and Alan Alda, with a script by the Coen brothers. The film was shot from September to December 2014 on location in New York City, Berlin and Wroclaw, Poland (which doubled for East Berlin), and was released by Disney on October 16, 2015. Bridge of Spies received positive reviews from critics, and was nominated for six Academy Awards, including Best Picture.
Who played Donovan in 'Bridge of Spies'?
A: Tom Hanks

Question: Read this and answer the question

Pennies and other small coins are sometimes ingested by dogs, resulting in the need for medical treatment to remove the foreign body. The zinc content of some coins can cause zinc toxicity, which is commonly fatal in dogs, where it causes a severe hemolytic anemia, and also liver or kidney damage; vomiting and diarrhea are possible symptoms. Zinc is highly toxic in parrots and poisoning can often be fatal. The consumption of fruit juices stored in galvanized cans has resulted in mass parrot poisonings with zinc.

What does the zinc coins ingested by dogs cause?
Answer:
zinc toxicity