What Is Skywriting?
Skywriting is the process of using a small aircraft, able to expel special smoke during flight, to fly in certain patterns that create writing readable by someone on...
Read MoreHow Does a Smoke Detector Work? There are two basic kinds of smoke detectors: ionization detectors and photoelectric detectors. A smoke alarm uses one or both methods,...
Read MoreHow Did Volcanoes Get Their Name? Volcanoes were named after Vulcan — the ancient Roman god of fire and metals. According to Roman legend, Vulcan lived under a volcanic...
Read MoreThere’s no smoke without a fire. Smoke is an unwanted by-product of fire. When a fire burns, the air around it becomes heated as some of the burning fuel is...
Read MoreWhen I was 8 years old we used to live in Assam. One day when my father was out, there was no electricity in the house. So my mother lit a candle and kept it on the...
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