Marginal cost measures the cost of producing one more unit of a good. Zero marginal cost occurs when extra units can be produced at no additional cost. Marginal costs include variable costs and can ...

A good set of speakers can help turn your PC into the ultimate home entertainment rig. Here's what to look for when shopping, along with the best computer-friendly speakers we've tested. I’m PCMag’s ...

Feb. 21, 2026 Deep inside a Romanian ice cave, locked away in a 5,000-year-old layer of ice, scientists have uncovered a bacterium with a startling secret: it’s resistant to many modern antibiotics.

With cocoa prices high, Hershey’s has changed some of its candy recipes. The grandson of the man who invented the original Peanut Butter Cup said he was “embarrassed.” By Claire Brown The Trump ...

The world is running out of water, with many countries suffering from significant water shortages. We’re now having to rely on groundwater that takes thousands of years to replenish – so what can we ...

Guest: Dr. Justin Garcia is an evolutionary biologist and executive director of the Kinsey Institute. He is the author of The Intimate Animal.Transcripts for each episode are available within 1-3 days ...