The heart devices do not track location, nor do they transmit across large distances. Like an estimated three million Americans, Nancy Guthrie, the 84-year-old mother of the NBC News anchor Savannah ...
Olympic sliding sports – bobsled, luge and skeleton – are known for their speed. Athletes chase medals down a track of ice at ...
She navigated segregation to become an esteemed mathematician — and today, her work helps billions of people navigate the world. Gladys West, whose pioneering career contributed key elements to what ...
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