The York Avenue Sewer Replacement project was only supposed to take two or three years. That is, until crews opened the street and found a spaghetti-like jumble of pipes and utilities underground.

Dalhousie researchers have revealed how Arctic aquifers—permeable layers of the ground that store and transmit water to rivers, lakes and terrestrial ecosystems—behave today and how these vital ...

Learn how to create contour plots in Python using NumPy’s meshgrid and Matplotlib. This step-by-step tutorial shows you how to generate grids, compute functions over them, and visualize data ...

Most of what we know about the ocean just skims the surface, literally. We’ve gathered a large quantity of data on the oceans from satellites, but most of that is based on the top layer of water.

Mud volcanoes often exhibit calderas, which are large circular depressions at their summit. Detailed mapping around the Caspian Sea suggests that caldera-forming mud volcanoes are dynamically similar ...

Since Philadelphia is arranged on a grid system, the mostly one-way roads are easy to navigate. Helpful maps are posted along street corners across the city – watch for the "Walk! Philadelphia" signs ...