Japan

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Naomi Osaka, four-time Grand Slam tennis champion, had the honor of lighting the Olympic cauldron at the Opening Ceremony of the 2020 Tokyo Olympics on Friday.

The torch always finishes its long journey in the Opening Ceremony venue, being carried around the stadium by notable athletes or other figures from the host country. Those athletes are a closely guarded secret until the ceremony actually happens, so Osaka's presence was a huge surprise.

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The new fiber could help satisfy demand for 6G and beyond.

The many-gigabit internet speed records of a decade ago now seem downright inadequate. Motherboard reports that scientists at Japan's National institute of Information and Communications Technology (NICT) have smashed the internet transfer record by shuffling data at 319Tbps. For context, that's almost twice as fast as the 179Tbps a team of British and Japanese researchers managed in August 2020.

NICT managed the feat by upgrading virtually every stage of the pipeline. The fiber optic line had four cores instead of one, and researchers fired a 552-channel comb laser at multiple wavelengths with the assistance of rare earth amplifiers. While the test was strictly confined to the lab, the team used coiled fiber to transfer data at a simulated 1,864-mile distance without losing signal quality or speed.

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