Analyze an uphill skier problem using work, energy, and power principles. See how gravitational potential energy, applied force, and friction determine the required work and power, and learn how speed ...

Global momentum continues to build behind nuclear power. There are more than 400 nuclear reactors in operation today in 31 countries, and the number of countries that are considering, planning or well ...

Can underwater turbines work? This video explores the potential of tidal power, highlighting innovative technologies such as underwater bladed turbines, undulating membranes that generate electricity, ...

We walk here, we walk there, we walk everywhere. Maybe you’re headed to work or to lunch in a busy city. You’re expending energy, and the exercise is good for you. But what if, on top of that, we ...