Dora, Otis retired from list of Pacific hurricane names

The World Meteorological Organization on Wednesday said it had withdrawn Otis and Dora from the list of northeast Pacific hurricane names due to their roles in destructive extreme weather events.

High-quality microwave signals generated from tiny photonic chip

In a new Nature study, Columbia Engineering researchers have built a photonic chip that is able to produce high-quality, ultra-low-noise microwave signals using only a single laser. The compact deviceā€”a chip so small, it ...

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