How Does a Magnifying Glass Start a Fire?
Introduction A magnifying glass isn’t always used merely for magnification. The unique properties of a magnifying glass have long been known to have the ability to create a fire. In the absence of matches or a lighter, a magnifying glass is a great tool for any wilderness survivalist. There’s science behind the magic of such a trick. The Process A magnifying glass starts a fire through the use of heat from the sun. This is done by positioning the glass so that the sun’s rays pass through the lens, forming a small point of light on a pile of dry kindling. If the sun’s light is hot enough, the kindling is dry enough and the focal strength of the lens is adequate, a fire will eventually spark. Why it Works The science behind lighting a fire with a magnifying glass can be found in the form of photos. Photons are the particles that carry visible light from the sun to the earth. They also contain energy in the form of heat. Through the use of a magnifying glass, the path of these photons are
