Buying a telescope as soon as you develop an interest in the night sky is like returning from a zoo all excited about animals and then investing in a microscope to study bacteria. If you’re new ...

Fifteen years ago, Yuhua Zhang, Ph.D., was learning to design cameras, telescopes, and microscopes in his native China. Then his mother-in-law developed sudden, severe bleeding in her left eye, and ...

In 1873, the German physicist Ernst Abbe realized that the resolution of optical imaging instruments, including telescopes and microscopes, is fundamentally limited by the diffraction of light.

1. Highly corrected EMO Wetzlar 5x Macromax loupe 2. Emoskop : this marvel is a telescope, a microscope and three magnifier in a pocket package only 50mm long. It is the optical equivalent of a ...