Add Yahoo as a preferred source to see more of our stories on Google. Researchers still puzzle over exactly how Roman concrete was made, but they have a few clues, including many of its ingredients ...

Self-healing concrete The researchers behind this new paper studied the chemical composition of materials found at the site and defined some key elements: incredibly tiny pieces of quicklime that ...

This time of year, bushels of rhubarb, potatoes, and lettuce can be harvested in abundance at the People’s Pantry, a community garden that doubles as a fresh food pantry in Blackpool, England. There, ...