Lippershey then experimented with lenses in a tube and settled on a design which combined a concave lens and a convex lens.

The straight side is pointed outward. At the other end is the objective lens, a concave-convex lens, which curves inward on one side and outward on the other. The convex side faces outward.

Hubei, China - April 02, 2024 [Note: no sound] On April 2, 2024, in Hubei, located in central China, a unique video demonstrated the effects of convex lens imaging. The original image showed a man ...

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