While Earth's slowdown is not noticeable on human timescales, it's enough to work significant changes over eons. One of those ...

Forget the farm – imagine biting into a juicy piece of chicken grown in a lab. Lab-grown chicken nuggets are now closer to ...

Diffusion happens naturally and so does not require energy. Substances like oxygen, carbon dioxide and glucose move in and out of cells by diffusion. If I spray a little perfume over here, ...

Without gravity, hot air expands but doesn’t move upward. The flame persists because of the diffusion of oxygen, with random oxygen molecules drifting into the fire. Absent the upward flow of ...