Saying no is powerful. My toddler wields the word on a daily basis, and in many ways, I’m in awe of his unabashed claim of the word. Despite being an empowering, commanding and beautiful word to ...

In 1971, Raymond Tomlinson, a computer engineer working at a technology company, Bolt, Beranek and Newman, was building applications for the ARPANET—the early forerunner for the modern internet. At ...