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Kevin Lamarque
/
REUTERS
Elon Musk has floated the idea of building a high-speed tunnel between Austin and San Antonio. Musk laid out the idea on X, the social media platform that he owns. He said it could serve as a precursor to a hyperloop that would link the two cities in less than 30 minutes.
By 1943, a network of shortwave transmitters and receivers was strategically located in such a way that a signal originating in New York City could be heard all the way to the tip of Argentina. Music and communication were spread throughout the western hemisphere.
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