Bob Stuber of the Michigan Hydro Relicensing Coalition, a collection of hunting and fishing groups which advocates for ...

Question: Why does concrete get hot when it is curing? Answer: Simply put, water plus aggregates (gravel, sand, stone), plus cement (such as Portland cement) start a chain of chemical reactions called ...

Happy Statehood Day, Arizona. From Stevie Nicks and the Colorado River to creosote and Camelback Mountain, here's why we love the Grand Canyon State.