Early mathematicians wrote out their calculations in longhand rather than using symbols as shorthand. It wasn't until 1575 that Robert Recorde used what evolved into the modern "equal" sign, as well as "+" and "-," writes Joseph Mazur.
Museums are dusting themselves off and going digital, using social tools such as Twitter, Foursquare and Facebook to reach out to and engage with visitors. Institutions such as New York's Guggenheim and San Francisco's Museum of Modern Art are finding that social tools let them stay connected to their communities, their daily visitors and their global fan base. "Social media has pushed museums toward being more responsive to the public," wrote a blogger who goes by "Museum Nerd."
Human resources professionals shouldn't blindly accept the notion that social media is something to fear -- even if the advice comes from lawyers -- and should instead experience it for themselves, Lisa Rosendahl writes. "Be prepared to provide the leadership necessary to successfully address the social media questions facing your organization," she writes.
The U.S. government's initiative to double exports during the next five years might boost the sector, but it will not necessarily create jobs, executives and economists said. Employers have ways to increase production without adding workers, they said, including increasing workers' productivity, expanding hours of part-time employees and fully using facilities.
The Museum of Modern Art in New York City has inducted the "@" symbol into its design collection, a mark of prestige for the commonplace keyboard presence. According to a MoMA senior curator, the adaptation of @ "to resolve a functional issue (excessively long and convoluted programming language) brought on by a revolutionary technological innovation (the Internet) -- is by all means an act of design of extraordinary elegance and economy."