In this video, we model a catenary curve using a mass-spring system, showing how a chain-like shape can emerge from discrete masses connected by springs. We connect the simulation to real physics, ...

In this video, we derive the catenary curve using physics and calculus, explaining how a hanging cable reaches equilibrium under gravity. Step-by-step reasoning connects forces, differential equations ...

Many cars got stuck in the snow, or were sliding out on main roads, such as Sherbrooke St., Robert Bourassa Blvd., and others ...

NJ Transit and Amtrak riders will experience service disruptions and diversions on the nation's busiest passenger rail line.

NJ Transit service will be reduced on some lines and Midtown Direct trains to Manhattan will be diverted to Hoboken for four ...

Several MBTA Commuter Rail trains were canceled Monday morning due to a range of issues, the agency announced in social media posts.

Changes will be coming to train schedules on New Jersey Transit (NJT) during the second half of February and the first half ...

About 60,000 riders traveled daily through the tunnel between 13th Street and its West Philadelphia portal at 40th Street.

After nearly five months off the tracks, Atlanta's downtown streetcars are ready to roll again next month. MARTA announced ...

A man is facing criminal charges after he was caught in the act of cutting copper wire along the Sacramento light rail track ...

Downtown Abilene is getting a new batch of trees as part of a larger project to update Cypress Street. City crews are ...