Which Was the First Railroad in the U.S.?

The Baltimore and Ohio Railroad (B&O Railroad), founded in 1827 in Maryland, was the first major railroad in the United States to carry both passengers and freight using steam-powered locomotives.
Steel Horse Rides on MSN

A new camera went up overnight — drivers didn’t realize it wasn’t for speeding

What began as a straightforward push to automate speeding and red light enforcement is evolving into a broader system of ...
Under30CEO on MSN

How to choose a co-founder with complementary skills

You probably know at least one founder who says, “The idea was solid, the market was there, but the founding team wasn’t.” Co ...

What is ‘stick flex’ in hockey? How NHLers use it to maximize their games, and how it works

In today's NHL, players don't have to rely on force for their shots — they let "the stick do the work." Here's the science ...
Scientific Research Publishing

On the Application of the Infinitesimal Method to Two Categories of Problems in College Physics ()

Cheng, R. , Liu, J. , Hao, L. and Wu, D. (2026) On the Application of the Infinitesimal Method to Two Categories of Problems in College Physics. Open Journal of Social Sciences, 14, 378-389. doi: ...