Problem: Printed circuit board:

The reinforcement type defines two major classes of materials - woven and non-woven. Woven reinforcements are cheaper, but the high dielectric constant of glass may not be favorable for many higher-frequency applications. The spatially nonhomogeneous structure also introduces local variations in electrical parameters, due to different resin/glass ratio at different areas of the weave pattern. Nonwoven reinforcements, or materials with low or no reinforcement, are more expensive but more suitable for some RF/analog applications.

Materials with low or no refinement are called what?
---
A: unanswerable

Problem: The Times commissioned the serif typeface Times New Roman, created by Victor Lardent at the English branch of Monotype, in 1931. It was commissioned after Stanley Morison had written an article criticizing The Times for being badly printed and typographically antiquated. The font was supervised by Morison and drawn by Victor Lardent, an artist from the advertising department of The Times. Morison used an older font named Plantin as the basis for his design, but made revisions for legibility and economy of space. Times New Roman made its debut in the issue of 3 October 1932. After one year, the design was released for commercial sale. The Times stayed with Times New Roman for 40 years, but new production techniques and the format change from broadsheet to tabloid in 2004 have caused the newspaper to switch font five times since 1972. However, all the new fonts have been variants of the original New Roman font:
Who commissioned the change of the typeface of The Times in 1931?
---
Answer: Stanley Morison

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the US, one kilowatt-hour (3.6 MJ) of electricity currently causes an average 1.34 pounds (610 g) of CO
2 emission. Assuming the average light bulb is on for 10 hours a day, a 40-watt bulb will cause 196 pounds (89 kg) of CO
2 emission per year. The 6-watt LED equivalent will only cause 30 pounds (14 kg) of CO
2 over the same time span. A building's carbon footprint from lighting can therefore be reduced by 85% by exchanging all incandescent bulbs for new LEDs if a building previously used only incandescent bulbs.
A 6-watt LED left on for 10 hours a day will emit how much CO 2?
A: 30 pounds

Context and question: Avialans diversified into a wide variety of forms during the Cretaceous Period. Many groups retained primitive characteristics, such as clawed wings and teeth, though the latter were lost independently in a number of avialan groups, including modern birds (Aves). While the earliest forms, such as Archaeopteryx and Jeholornis, retained the long bony tails of their ancestors, the tails of more advanced avialans were shortened with the advent of the pygostyle bone in the group Pygostylia. In the late Cretaceous, around 95 million years ago, the ancestor of all modern birds also evolved a better sense of smell.
When did the ancestor of all modern birds evolve a better sense of smell?
Answer: late Cretaceous

Question: The main industries are mineral based, agriculture based, and textile based. Rajasthan is the second largest producer of polyester fibre in India. The Pali and Bhilwara District produces more cloth than Bhiwandi, Maharashtra and the bhilwara is the largest city in suitings production and export and Pali is largest city in cotton and polyster in blouse pieces and rubia production and export. Several prominent chemical and engineering companies are located in the city of Kota, in southern Rajasthan. Rajasthan is pre-eminent in quarrying and mining in India. The Taj Mahal was built from the white marble which was mined from a town called Makrana. The state is the second largest source of cement in India. It has rich salt deposits at Sambhar, copper mines at Khetri, Jhunjhunu, and zinc mines at Dariba, Zawar mines and Rampura Aghucha (opencast) near Bhilwara. Dimensional stone mining is also undertaken in Rajasthan. Jodhpur sandstone is mostly used in monuments, important buildings and residential buildings. This stone is termed as "chittar patthar". Jodhpur leads in Handicraft and Guar Gum industry. Rajasthan is also a part of the Mumbai-Delhi Industrial corridor is set to benefit economically. The State gets 39% of the DMIC, with major districts of Jaipur, Alwar, Kota and Bhilwara benefiting.
Is there an answer to this question: What prominent companies are located in Pali?

Answer: unanswerable

QUES: By 1640, the town's theocratic government and nine-square grid plan were in place, and the town was renamed Newhaven from Quinnipiac. However, the area north of New Haven remained Quinnipiac until 1678, when it was renamed Hamden. The settlement became the headquarters of the New Haven Colony. At the time, the New Haven Colony was separate from the Connecticut Colony, which had been established to the north centering on Hartford. One of the principal differences between the two colonies was that the New Haven colony was an intolerant theocracy that did not permit other churches to be established, while the Connecticut colony permitted the establishment of other churches.

In what year was the northern area of New Haven renamed Hamden?
What is the answer?
ANS:
1678