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Hockey is a sport in which two teams play against each other by trying to manoeuvre a ball or a puck into the opponent’s goal using a hockey stick. There are many types of hockey such as bandy, field hockey, ice hockey and rink hockey. In most of the world,…

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A windmill is a structure that converts wind power into rotational energy by means of vanes called sails or blades, specifically to mill grain (gristmills), but the term is also extended to windpumps, wind turbines and other applications. Windmills were used throughout the high medieval and early modern periods; the…

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The American Civil War was a civil war in the United States from 1861 to 1865, fought between northern states loyal to the Union and southern states that had seceded from the Union to form the Confederate States of America. The civil war began primarily as a result of the…

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Petroleum is a naturally occurring, yellowish-black liquid found in geological formations beneath the Earth’s surface. It is commonly refined into various types of fuels. Components of petroleum are separated using a technique called fractional distillation, i.e. separation of a liquid mixture into fractions differing in boiling point by means of…

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The scholarly study of war is sometimes called polemology. The multi-disciplinary program explores the military, diplomatic, philosophical, social, political, psychological or economic dimensions of human conflict. In the context of modern warfare, it considers issues of defence policy, strategic planning, logistics and operations. War is an intense armed conflict between…

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Queer studies, sexual diversity studies, or LGBT studies is the study of issues relating to sexual orientation and gender identity usually focusing on lesbian, gay, bisexual, transgender, gender dysphoria, asexual, queer, questioning, intersex people and cultures. Originally centered on LGBT history and literary theory, the field has expanded to include…

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The polar regions, also called the frigid zones, of Earth are the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles. These high latitudes are dominated by floating sea ice covering much of the Arctic ocean in the north, and…

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Oenology is the science and study of wine and winemaking; distinct from viticulture, the agricultural endeavours of vine-growing and of grape-harvesting. An oenologist is an expert in the fields comprehended by the “Viticulture and Oenology” designation for oenology-training programmes and research centres that include schooling, training, and education in the…

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Gastronomy is the study of the relationship between food and culture, the art of preparing and serving rich or delicate and appetizing food, the cooking styles of particular regions, and the science of good eating. One who is well versed in gastronomy is called a gastronome, while a gastronomist is…

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