The problem: Answer a question about this article:
Estonian language planners such as Ado Grenzstein (a journalist active in Estonia in the 1870s90s) tried to use formation ex nihilo, Urschopfung; i.e. they created new words out of nothing.
Who was the journalist who was also a language planner?
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The answer: Ado Grenzstein

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The Late Cretaceous spans from 100 million to 65 million years ago. The Late Cretaceous featured a cooling trend that would continue on in the Cenozoic period. Eventually, tropics were restricted to the equator and areas beyond the tropic lines featured extreme seasonal changes in weather. Dinosaurs still thrived as new species such as Tyrannosaurus, Ankylosaurus, Triceratops and Hadrosaurs dominated the food web. In the oceans, Mosasaurs ruled the seas to fill the role of the Ichthyosaurs, and huge plesiosaurs, such as Elasmosaurus, evolved. Also, the first flowering plants evolved. At the end of the Cretaceous, the Deccan traps and other volcanic eruptions were poisoning the atmosphere. As this was continuing, it is thought that a large meteor smashed into earth, creating the Chicxulub Crater in an event known as the K-T Extinction, the fifth and most recent mass extinction event, in which 75% of life on earth went extinct, including all non-avian dinosaurs. Everything over 10 kilograms went extinct. The age of the dinosaurs was over.
What is the span of the Late Cretaceous period?
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The answer: 100 million to 65 million years

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Helmut Hoffman states that the Ming upheld the facade of rule over Tibet through periodic missions of "tribute emissaries" to the Ming court and by granting nominal titles to ruling lamas, but did not actually interfere in Tibetan governance. Melvyn C. Goldstein writes that the Ming had no real administrative authority over Tibet, as the various titles given to Tibetan leaders did not confer authority as the earlier Mongol Yuan titles had. He asserts that "by conferring titles on Tibetans already in power, the Ming emperors merely recognized political reality." Hugh Edward Richardson writes that the Ming dynasty exercised no authority over the succession of Tibetan ruling families, the Phagmodru (13541435), Rinpungpa (14351565), and Tsangpa (15651642).
What years did the Rinpungpa regime start and end?
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The answer: 14351565

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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 element of a combustion engine does a governor monitor?
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The answer:
electrical pulses