Why does food cook faster in a pressure cooker?

Electric pressure cookers like the Instant Pot have grown in popularity in recent years. One reason for this is that they allow people to prepare meals more quickly. But a lot of people aren't sure why electric and stovetop ...

The science of steak

Before you throw a hunk of meat on the barbie this summer, read our guide to the perfect steak.

Eating out, breathing in

By now, most Americans are well aware of the air pollution created by power plants or heavy vehicle traffic. These sources discharge harmful particulate matter that becomes suspended in the air, creating what's called an ...