Professor Raúl Rojas has published a book about how symbols have been used throughout history in mathematics. The work was translated into English this year.

The Preview app lets you view different file types without having to actually open them in their associated apps. But there’s ...

Filler words often are a symptom of nervousness. So it would be easy to eliminate them if you could flip your nervousness off ...

More than one‐third of the world's population uses a writing system that includes both uppercase and lowercase letter forms.

Do you know how to use ask for, ask about, or ask out correctly? In this video, Claire breaks down seven of the most common phrasal verbs with ask that English learners use every day. You’ll learn ...

If you’ve ever said “I’ve lived here since 10 years,” this video is for you. Claire explains the real difference between since and for with simple examples that make grammar finally click. You’ll ...

NEW YORK — Yankees manager Aaron Boone spoke for more than 30 minutes during Thursday’s post-mortem presser at Yankee Stadium, fielding questions about Anthony Volpe’s shoulder surgery, another ...