Switch-mode power supplies (SMPS) based on the boost principle can convert a low voltage into a higher voltage. For this purpose, the standard boost topology is used as shown in Figure 1. 1. A simple ...

Scientists are exploring a new type of optical atomic clock based on ytterbium-173 ions that could help define the future standard for measuring time.

Every ham radio shack needs a clock; ideally one with operator-friendly features like multiple time zones and more. [cburns42] found that most solutions relied too much on an internet connection ...

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Cara Tabachnick is a news editor at CBSNews.com. Cara began her career on the crime beat at Newsday. She has written for Marie Claire, The Washington Post and The Wall Street Journal. She reports on ...

Remember those brick cellphones in the 1990s? They were comically large by today’s standards. These phones used the 1G ...