Lithium-ion batteries power most electronics, but they have limited energy density—they can store only a certain amount of ...

OKLAHOMA CITY (KFOR) — The floor looks like a manufacturing trade show in the Fairgrounds Pavilion. But standing next to all these heavy-duty products are the teams of FFA and 4-H students who built ...

There are approximately a zillion ways to get your cardio in nowadays. Walking, running, biking, stair climbing, rowing, skiing, swimming—the list goes on. You understand the importance of cardio, but ...