Question: Since LED efficacy is inversely proportional to operating temperature, LED technology is well suited for supermarket freezer lighting. Because LEDs produce less waste heat than incandescent lamps, their use in freezers can save on refrigeration costs as well. However, they may be more susceptible to frost and snow buildup than incandescent lamps, so some LED lighting systems have been designed with an added heating circuit. Additionally, research has developed heat sink technologies that will transfer heat produced within the junction to appropriate areas of the light fixture.
Try to answer this question if possible: LED efficacy is inversely proportional to what?
Answer: operating temperature
Question: The Sumerian city-states rose to power during the prehistoric Ubaid and Uruk periods. Sumerian written history reaches back to the 27th century BC and before, but the historical record remains obscure until the Early Dynastic III period, c. the 23rd century BC, when a now deciphered syllabary writing system was developed, which has allowed archaeologists to read contemporary records and inscriptions. Classical Sumer ends with the rise of the Akkadian Empire in the 23rd century BC. Following the Gutian period, there is a brief Sumerian Renaissance in the 21st century BC, cut short in the 20th century BC by Semitic Amorite invasions. The Amorite "dynasty of Isin" persisted until c. 1700 BC, when Mesopotamia was united under Babylonian rule. The Sumerians were eventually absorbed into the Akkadian (Assyro-Babylonian) population.
Try to answer this question if possible: What dynasty lasted until the 17th century BC?
Answer: unanswerable
Question: The Taliban regrouped in western Pakistan and began to unleash an insurgent-style offensive against Coalition forces in late 2002. Throughout southern and eastern Afghanistan, firefights broke out between the surging Taliban and Coalition forces. Coalition forces responded with a series of military offensives and an increase in the amount of troops in Afghanistan. In February 2010, Coalition forces launched Operation Moshtarak in southern Afghanistan along with other military offensives in the hopes that they would destroy the Taliban insurgency once and for all. Peace talks are also underway between Taliban affiliated fighters and Coalition forces. In September 2014, Afghanistan and the United States signed a security agreement, which permits United States and NATO forces to remain in Afghanistan until at least 2024. The United States and other NATO and non-NATO forces are planning to withdraw; with the Taliban claiming it has defeated the United States and NATO, and the Obama Administration viewing it as a victory. In December 2014, ISAF encasing its colors, and Resolute Support began as the NATO operation in Afghanistan. Continued United States operations within Afghanistan will continue under the name "Operation Freedom's Sentinel".
Try to answer this question if possible: In what parts of Afghanistan did the Taliban attack Coalition forces in 2002?
Answer: southern and eastern
Question: With the financial expansion, trading rights became more jealously guarded by the commercial elite. Towns saw the growing power of guilds, while on a national level special companies would be granted monopolies on particular trades, like the English wool Staple. The beneficiaries of these developments would accumulate immense wealth. Families like the Fuggers in Germany, the Medicis in Italy, the de la Poles in England, and individuals like Jacques Coeur in France would help finance the wars of kings, and achieve great political influence in the process.
Try to answer this question if possible: Where wasn't Jacques Couer from?
Answer:
unanswerable