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 ...

A new JSTAT study shows how to compute the minimum energy cells use to sustain certain metabolic pathways while suppressing others, revealing a “cost” invisible to mechanical physics. There are “costs ...

Researchers led by Rice University's Guido Pagano used a specialized quantum device to simulate a vibrating molecule and ...

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 ...