Science & Technology

Roughly two billion years ago the ancestor of mitochondria was an organism of its own. Now your cells depend on them.

When you speak, your voice reaches your ears through the air and through your own skull. A recording keeps only the air route. The common claim that the skull route makes your own voice sound lower to you than it does to others rests on an assumption

Tomatoes were bred for size and shelf life. The sweetness went first.
The minerals and vitamins went with it — and nothing on the label tells you.