Contract is part of a larger project to double track capacity crossing the Potomac River in Washington, D.C., addressing a key chokepoint for the heavily used passenger rail corridor.

A few years ago, physicists were surprised to learn that stacking and subtly twisting two atomically thin layers of an ...

We consulted interior designers and textile experts to get their take on the patterns that are leading the way in interior design trends this year, whittling them down to our favorite top ten. While ...