Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

The answer has its roots in Portuguese, Dutch, and English sailors who needed a way to tell how fast they were going in an ...

Launched in the early 1970s, US Navy submarine USS Parche was initially built as one of many Sturgeon-class attack submarines. But as fate would have it, she would then be transformed into a highly ...

Responding to a propane tanker rollover on a busy freeway, this video showcases the challenges and safety measures involved in managing the dangerous situation. ‘Catastrophe’: Watchdog’s blunt message ...

Alcoa Corporation (NYSE:AA) will release earnings results for the third quarter, after the closing bell on Wednesday, Oct. 22. Analysts expect the Pittsburgh, Pennsylvania-based company to report ...

Most Americans support US recognition of Palestinian state, Reuters/Ipsos poll shows The poll found 59% of respondents backed US recognition of a Palestinian state, while 33% were opposed, and the ...