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Math & Technology

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world map of submarine fiber-optic cables

MOTION OF THE OCEAN FLOOR  The network of submarine fiber-optic cables that deliver work emails and cat videos to computers around the world could double as undersea earthquake detectors. Existing cables are shown in purple; planned cables are in blue.

people at a cocktail party

LISTENING IN  A new AI filters out background conversations and other noise in videos to isolate what a single person on screen is saying.

Apollo 7 crew

THREE’S COMPANY  Twenty months after the deadly fire on Apollo 1, Apollo 7 and its crew (from left),  Donn F. Eisele, Walter M. Schirra, Jr. and Walter Cunningham, spent nearly 11 days in space, completing 163 orbits of Earth.

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