The radio altimeter, first developed in the 1920s, still plays a crucial role in planes, helping pilots determine a jet's altitude and its distance from other objects
Aviation regulators were correct in raising concerns about 5G and were taking appropriate steps to ensure safety
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A technological innovation that helped pilots fly fighter jets during World War II is now at the heart of the dispute between airlines and AT&T and Verizon over 5G, an innovative service meant to speed up mobile devices.
The clash has been years in the making and came to a head in the past few weeks. AT&T and Verizon agreed Tuesday to restrict 5G near airports after airlines warned that potential interference from it could cause a crucial device on planes to malfunction, and force them to cancel flights. Even with the airport restriction, a number of international airlines Tuesday canceled flights to the United States, though some of those flights were restored.
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