NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.

Sunrise Sunset Time Calculator to find the exact Sunrise time and Sunset time in any place or city around the world. Citywise sunset Calendar and Sunrise calendar. What is today's Sunset Time in a ...

Liz Simmons is an education staff writer at Forbes Advisor. She has written about higher education and career development for various online publications since 2016. She earned a master’s degree in ...

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Adam Oram is a Senior Editor at CNET. He studied Media at Newcastle University and has been writing about technology since 2013. He previously worked as a Senior Writer at iMore, Deals Editor at ...

Moderate physical activity may benefit your overall health and reduce fall risk if you’re over 65. You can incorporate daily activities like walking and aerobics with strength training exercises.