Problem: History of science:

Muslim scientists placed far greater emphasis on experiment than had the Greeks. This led to an early scientific method being developed in the Muslim world, where significant progress in methodology was made, beginning with the experiments of Ibn al-Haytham (Alhazen) on optics from c. 1000, in his Book of Optics. The law of refraction of light was known to the Persians. The most important development of the scientific method was the use of experiments to distinguish between competing scientific theories set within a generally empirical orientation, which began among Muslim scientists. Ibn al-Haytham is also regarded as the father of optics, especially for his empirical proof of the intromission theory of light. Some have also described Ibn al-Haytham as the "first scientist" for his development of the modern scientific method.

What theory did Ibn al-Haytham have proof for?
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A: the intromission theory of light

Problem: Oklahoma is host to a diverse range of sectors including aviation, energy, transportation equipment, food processing, electronics, and telecommunications. Oklahoma is an important producer of natural gas, aircraft, and food. The state ranks third in the nation for production of natural gas, is the 27th-most agriculturally productive state, and also ranks 5th in production of wheat. Four Fortune 500 companies and six Fortune 1000 companies are headquartered in Oklahoma, and it has been rated one of the most business-friendly states in the nation, with the 7th-lowest tax burden in 2007.
How many Fortune 1000 companies are based in Oklahoma?
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Answer: six

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Qin armies finished their conquest of the kingdoms of Shu and Ba by 316 BC. Any written records and civil achievements of earlier kingdoms were destroyed. Qin administrators introduced improved agricultural technology. Li Bing, engineered the Dujiangyan irrigation system to control the Min River, a major tributary of the Yangtze. This innovative hydraulic system was composed of movable weirs which could be adjusted for high or low water flow according to the season, to either provide irrigation or prevent floods. The increased agricultural output and taxes made the area a source of provisions and men for Qin's unification of China.
What was built to control the Yangtze river?
A: unanswerable

Context and question: Healthcare is funded by the government, undertaken by one resident doctor from South Africa and five nurses. Surgery or facilities for complex childbirth are therefore limited, and emergencies can necessitate communicating with passing fishing vessels so the injured person can be ferried to Cape Town. As of late 2007, IBM and Beacon Equity Partners, co-operating with Medweb, the University of Pittsburgh Medical Center and the island's government on "Project Tristan", has supplied the island's doctor with access to long distance tele-medical help, making it possible to send EKG and X-ray pictures to doctors in other countries for instant consultation. This system has been limited owing to the poor reliability of Internet connections and an absence of qualified technicians on the island to service fibre optic links between the hospital and Internet centre at the administration buildings.
From where are the five doctors on the island from?
Answer: unanswerable

Question: Sheahon Zenger was introduced as KU's new athletic director in January 2011. Under former athletic director Lew Perkins, the department's budget increased from $27.2 million in 2003 (10th in the conference) to currently over $50 million thanks in large part to money raised from a new priority seating policy at Allen Fieldhouse, a new $26.67 million eight-year contract with Adidas replacing an existing contract with Nike, and a new $40.2 million seven-year contract with ESPN Regional Television. The additional funds brought improvements to the university, including:
Is there an answer to this question: Who did Zenger replace as athletic director at KU?

Answer: Lew Perkins

QUES: and Camargo. In 1631 Juan Rangel de Biezma discovered a rich vein of silver, and subsequently established San Jose del Parral near the site. Parral remained an important economic and cultural center for the next 300 years. On December 8, 1659 Fray Garcia de San Francisco founded the mission of Nuestra Senora de Guadalupe de Mansos del Paso del Rio del Norte and founded the town El Paso Del Norte (present day Ciudad Juarez) in 1667. The Spanish society that developed in the region replaced the sparse population of indigenous peoples. The absence of servants and workers forged the spirit of northern people as self-dependent, creative people that defended their European heritage. In 1680 settlers from Santa Fe, New Mexico sought refuge in El Paso Del Norte for twelve years after fleeing the attacks from Pueblo tribes, but returned to Santa Fe in 1692 after Diego de Vargas recaptured the city and vicinity. In 1709, Antonio de Deza y Ulloa founded the state capital Chihuahua City; shortly after, the city became the headquarters for the regional mining offices of the Spanish crown known as Real de Minas de San Francisco de Cuellar in honor of the Viceroy of New Spain, Francisco Fernandez de la Cueva Enriquez, Duke of Alburquerque and the Marquee of Cuellar..

Which precious metal did Biezma discover?
What is the answer?
ANS:
silver