👉 A spyglass is a type of glass used in optical instruments and devices for viewing objects from a distance. They are typically made of glass, with a thin, concave surface that allows light to pass through it to form an image on the eyewear's surface. These glasses can be used to view various types of objects such as buildings, vehicles, or even the sky in a clear and unobstructed view.
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What is the definition of Spyglass? 🙋
👉 A spyglass is a type of telescope used to observe stars. It consists of a lens, a glass tube, and an eyepiece or objective. The eyepiece is usually located in front of the lens, allowing the user to see distant objects that are not visible through the eyepiece itself. Spyglasses were originally made for use by military personnel during World War II, but they have since become popular among amateur astronomers as well.
