The Fuel Problem The demand for liquid and gaseous fuels must sooner or later outstrip our resources of petroleum and natural gas. What of the processes that get these fuels from such solids as coal?

Many people believe that mixing two toilet cleaners will give a “stronger” clean, especially when dealing with tough bathroom stains. But here’s the thing: combining cleaning products can do more harm ...

For many people, the word “meditation” sounds intimidating—like something reserved for monks or wellness influencers with endless free time. But science shows that meditation may help reduce anxiety, ...