Who Invented Safety Matches?
Who Invented Safety Matches? Safety matches were invented by Johan Edvard Lundström and his younger brother...
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Which Poisonous Gas Has a Sweet Smell?
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Would You Prefer an Electric Vehicle?
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What Is Vijayadashami?
What Is Vijayadashami? Dussehra, also known as Vijayadashami in eastern and northeastern India, is an...
Why Do Aircraft Sometimes Leave Vapor Trails?
Why Do Aircraft Sometimes Leave Vapor Trails? Vapor trails form in the sky because the water in the exhaust...
Why Are Convection Heaters So-called?
Why Are Convection Heaters So-called? Heating appliances specially designed to create a circulating movement...
Who Was Galileo Galilei?
Who Was Galileo Galilei? Galileo Galilei (1564-1642), the great Italian scientist and mathematician, was the...
Why Do We Call Galileo by His First Name Only?
Why Do We Call Galileo by His First Name Only? The surname Galilei derives from the given name of an...
Why Does Bread Have Holes in It?
Why Does Bread Have Holes in It? The holes in a piece of bread are made by bubbles of gas. In bread making,...
When Did the Publication of Comic Books Begin?
When Did the Publication of Comic Books Begin? Comics as a print medium have existed in America since the...
What Is Energy?
Energy is the power to act. There are several different forms of energy, and one kind can be changed into...
Does Extraterrestrial Life or so Called Aliens Actually Exist?
Does Extraterrestrial Life or so Called Aliens Actually Exist? Unless you’ve personally had a UFO...