A horizontal line means the object is moving at a constant speed. The gradient of the line = the rate of change of speed. The steeper the line, the greater the increase in speed. The area under the ...

This series of short explainer films with Professor Brian Cox comprises six clips focused on forces, speed and motion. Each ...

Here’s what you’ll learn when you read this story: In the physical world, time marches in one direction, but things aren’t so straight forward in the quantum realm. Researchers have discovered that it ...