Problem: Please answer a question about the following article about Film speed:
The noise-based speed is defined as the exposure that will lead to a given signal-to-noise ratio on individual pixels. Two ratios are used, the 40:1 ("excellent image quality") and the 10:1 ("acceptable image quality") ratio. These ratios have been subjectively determined based on a resolution of 70 pixels per cm (178 DPI) when viewed at 25 cm (9.8 inch) distance. The signal-to-noise ratio is defined as the standard deviation of a weighted average of the luminance and color of individual pixels. The noise-based speed is mostly determined by the properties of the sensor and somewhat affected by the noise in the electronic gain and AD converter.
How are the two ratios found?
A: subjectively determined based on a resolution of 70 pixels per cm (178 DPI) when viewed at 25 cm (9.8 inch) distance
Problem: Please answer a question about the following article about Architecture:
Building first evolved out of the dynamics between needs (shelter, security, worship, etc.) and means (available building materials and attendant skills). As human cultures developed and knowledge began to be formalized through oral traditions and practices, building became a craft, and "architecture" is the name given to the most highly formalized and respected versions of that craft.
What was building considered?
A: a craft
Problem: Please answer a question about the following article about Chihuahua (state):
The plains at the foot of the Sierra Madre Occidental is an elongated mesa known as Altiplanicie Mexicana that exhibits a steppe climate and serves as a transition zone from the mountain climate in the western part of the state to the desert climate in the eastern side of the state. The steppe zone accounts for a third of the state's area, and it experiences pronounced dry and wet seasons. The pronounced rainy season in the steppe is usually observed in the months of July, August, and September. The steppe also encounters extreme temperatures that often reach over 100 F in the summer and drop below 32 F in the winter. The steppe zone is an important agriculture zone due to an extensive development of canals exploiting several rivers that flow down from the mountains. The steppe zone is the most populated area of the state.
The mountain climate is found in which part of the state?
A: western
Problem: Please answer a question about the following article about Napoleon:
Napoleon maintained strict, efficient work habits, prioritizing what needed to be done. He cheated at cards, but repaid the losses; he had to win at everything he attempted. He kept relays of staff and secretaries at work. Unlike many generals, Napoleon did not examine history to ask what Hannibal or Alexander or anyone else did in a similar situation. Critics said he won many battles simply because of luck; Napoleon responded, "Give me lucky generals," aware that "luck" comes to leaders who recognize opportunity, and seize it. Dwyer argues that Napoleon's victories at Austerlitz and Jena in 1805-06 heightened his sense of self-grandiosity, leaving him even more certain of his destiny and invincibility. By the Russian campaign in 1812, however, Napoleon seems to have lost his verve. With crisis after crisis at hand, he rarely rose to the occasion. Some historians have suggested a physical deterioration, but others note that an impaired Napoleon was still a brilliant general.
According to critics, what was the reason Napoleon won many battles?
A:
luck