The concept of building your own hydroelectric generator seems simple at face value: use gravity to impart as much force as ...

Which exercise machine burns the most calories? The one you enjoy and will use the most. Here are our all-time favorite cardio machines we have tested at Live Science. When you purchase through links ...

Monday: Mostly cloudy, with a high of 34 and low of 29 degrees.

Wanna see a trick? Give us any topic and we can tie it back to the economy. At Planet Money, we explore the forces that shape our lives and bring you along for the ride. Don't just understand the ...