The mind-bending concept of time dilation results from a seemingly harmless assumption—that the speed of light is the same for all observers.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

From Assos and AeroCyclingGear to NoPinz, Rule2, Sockeloen and Velotoze, we tested all the best aero socks on the market to find out whether all aero socks are created equal ...

Shohei Ohtani took the mound for the first time in nearly two years.

Mamdani surges in new poll, leading Cuomo for first time in New York mayor's race The former governor has topped every voter survey since entering the race, but the democratic socialist is gaining ...

A local TV reporter questioned whether the city's violent unrest qualified as rioting - even as a fire burned behind him live on the air.

Computer scientist and futurist Ray Kurzweil believes humanity will achieve “longevity escape velocity” in just four years.

Still, they are eager to spend time with their uncle Logan (Ryan Phillippe) and learn about their father, Christian Maddox, who vanished before they were born. The series hits on several themes ...

Eleanor Raker has already posted faster times than the official state records. This month, she'll have a chance to make things official.

"American distance running is at an all-time high right now, I think," says Fisher, pointing to Matt Centrowitz's 1,500-meter Olympic gold in Rio as a moment that inspired his generation.

The Cowboys wasted no time making their presence known, turning in an incredible performance in the first running event of the day: the Distance Medley Relay. The relay team of Brian Musau, Jordon ...

Discover why time, not distance, should be your key metric for running success, leading to better fitness results and fewer injuries.