Why Do Onions Make Our Eyes Water?
Why Do Onions Make Our Eyes Water? Onions contain mildly stimulating oil. This oil readily forms a vapor (gas), which escapes into the air when the onion is cut or...
Read MoreWhy Do Onions Make Our Eyes Water? Onions contain mildly stimulating oil. This oil readily forms a vapor (gas), which escapes into the air when the onion is cut or...
Read MoreHow Does a Refrigerator Work? Earlier food was preserved by traditional methods like salting and pickling which were not always practical. Nowadays refrigerators are...
Read MoreWhy Does a Jet Plane Leave a Vapor Trail? The white streaks planes leave behind are actually artificial clouds called contrails, which is a shortened version of the...
Read MoreRain comes from clouds. There is always some moisture in the air. It evaporates from lakes and oceans. The water floats in the air as invisible vapor until the air...
Read MoreWhere Does Gasoline Come From? Most gasoline is obtained from crude oil or petroleum, the oil that comes from oil wells. Crude oil is a fossil fuel. That means it was...
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