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The most influential publication of the Enlightenment was the Encyclopedie, compiled by Denis Diderot and (until 1759) by Jean le Rond d'Alembert and a team of 150 scientists and philosophers. It was published between 1751 and 1772 in thirty-five volumes, and spread the ideas of the Enlightenment across Europe and beyond. Other landmark publications were the Dictionnaire philosophique (Philosophical Dictionary, 1764) and Letters on the English (1733) written by Voltaire; Rousseau's Discourse on Inequality (1754) and The Social Contract (1762); and Montesquieu's Spirit of the Laws (1748). The ideas of the Enlightenment played a major role in inspiring the French Revolution, which began in 1789. After the Revolution, the Enlightenment was followed by an opposing intellectual movement known as Romanticism.
What year did the French Revolution begin?
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The answer: 1789

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To protect crops from wind and drought, the Grain Intendant Zhao Guo () created the alternating fields system (daitianfa ) during Emperor Wu's reign. This system switched the positions of furrows and ridges between growing seasons. Once experiments with this system yielded successful results, the government officially sponsored it and encouraged peasants to use it. Han farmers also used the pit field system (aotian ) for growing crops, which involved heavily fertilized pits that did not require plows or oxen and could be placed on sloping terrain. In southern and small parts of central Han-era China, paddy fields were chiefly used to grow rice, while farmers along the Huai River used transplantation methods of rice production.
What system did the government recommend the usage of?
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The answer: alternating fields system

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The Monument in the City of London provides views of the surrounding area while commemorating the Great Fire of London, which originated nearby. Marble Arch and Wellington Arch, at the north and south ends of Park Lane respectively, have royal connections, as do the Albert Memorial and Royal Albert Hall in Kensington. Nelson's Column is a nationally recognised monument in Trafalgar Square, one of the focal points of central London. Older buildings are mainly brick built, most commonly the yellow London stock brick or a warm orange-red variety, often decorated with carvings and white plaster mouldings.
What was the most common type of brick used to construct London's older buildings?
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The answer: yellow London stock brick or a warm orange-red variety

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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.
How is sunlight converted into electricity?
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The answer:
either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP)