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Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

This book presents a systematic account of optical coherence theory within the framework of classical optics, as applied to such topics as radiation from sources of different states of coherence, ...

Integrated optics is a system of light-controlling components combined into a single device. The ultimate aim is to create miniature optical circuits similar to the silicon chips that have ...

The best telescopes provide an unrivaled view of the cosmos, and some of our favorite models have massive Cyber Monday savings of up to $1,000! When you purchase through links on our site, we may ...