NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.
Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Christopher Nkunku has reached an initial agreement to join AC Milan as the Serie A club prepare a bid to sign the Chelsea forward, according to reports in Italy. The 27-year-old has struggled to ...
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