The problem: Answer a question about this article:
Solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). CSP systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. PV converts light into electric current using the photoelectric effect.
What is solar power?
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The answer: conversion of sunlight into electricity

Problem: Please answer a question about the following article about Memory:
In psychology, memory is the process in which information is encoded, stored, and retrieved. Encoding allows information from the outside world to be sensed in the form of chemical and physical stimuli. In the first stage the information must be changed so that it may be put into the encoding process. Storage is the second memory stage or process. This entails that information is maintained over short periods of time. Finally the third process is the retrieval of information that has been stored. Such information must be located and returned to the consciousness. Some retrieval attempts may be effortless due to the type of information, and other attempts to remember stored information may be more demanding for various reasons.
What is the second memory stage?
A: Storage

Question: Read this and answer the question

In China, it opened on 12 November and earned $15 million on its opening day, which is the second biggest 2D single day gross for a Hollywood film behind the $18.5 million opening day of Mission: Impossible Rogue Nation and occupying 43% of all available screens which included $790,000 in advance night screenings. Through its opening weekend, it earned $48.1 million from 14,700 screens which is 198% ahead of Skyfall, a new record for a Hollywood 2D opening. IMAX contributed $4.6 million on 246 screens, also a new record for a three-day opening for a November release (breaking Interstellar's record). In its second weekend, it added $12.1 million falling precipitously by 75% which is the second worst second weekend drop for any major Hollywood release in China of 2015. It grossed a total of $84.7 million there after four weekends. Albeit a strong opening it failed to attain the $100 million mark as projected.

Spectre came in second in opening day gross in China behind what movie?
Answer: Mission: Impossible Rogue Nation

Problem: On 7 June 1950, Kim Il-sung called for a Korea-wide election on 58 August 1950 and a consultative conference in Haeju on 1517 June 1950. On 11 June, the North sent three diplomats to the South, as a peace overture that Rhee rejected. On 21 June, Kim Il-Sung revised his war plan to involve general attack across the 38th parallel, rather than a limited operation in the Ongjin peninsula. Kim was concerned that South Korean agents had learned about the plans and South Korean forces were strengthening their defenses. Stalin agreed to this change of plan.
Why did Kim's war plan need revising?
The answer is the following: South Korean agents had learned about the plans

Spectre was released on 26 October 2015 in the United Kingdom on the same night as the world premiere at the Royal Albert Hall in London, followed by a worldwide release. It was released in the United States on 6 November 2015. It became the second James Bond film to be screened in IMAX venues after Skyfall, although it was not filmed with IMAX cameras. Spectre received mixed reviews upon its release; although criticised for its length, lack of screen time for new characters, and writing, it received praise for its action sequences and cinematography. The theme song, "Writing's on the Wall", received mixed reviews, particularly compared to the previous theme; nevertheless, it won the Golden Globe for Best Original Song and was nominated for the Academy Award in the same category. As of 20 February 2016[update], Spectre has grossed over $879 million worldwide.
What was the theme song for the James Bond film Spectre?
Writing's on the Wall

Here is a question about this article: Another common application is the control of the throttle of an internal combustion engine in conjunction with an electronic governor. In this usage, the motor works against a return spring to move the throttle in accordance with the output of the governor. The latter monitors engine speed by counting electrical pulses from the ignition system or from a magnetic pickup and, depending on the speed, makes small adjustments to the amount of current applied to the motor. If the engine starts to slow down relative to the desired speed, the current will be increased, the motor will develop more torque, pulling against the return spring and opening the throttle. Should the engine run too fast, the governor will reduce the current being applied to the motor, causing the return spring to pull back and close the throttle.
What is the answer to this question: What element of a combustion engine does a governor monitor?
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So...
electrical pulses