There's lots to discover in the electromagnetic spectrum. Here's a tour that begins with radio waves and takes you through ... see NOVA's conversion chart. Rick Groleau is managing editor of ...

Save guides, add subjects and pick up where you left off with your BBC account. Electromagnetic waves travel at 300,000,000 metres per second (m/s) through a vacuum. Often a phrase is used to help ...

Electromagnetic waves travel at 300,000,000 metres per second (m/s) through a vacuum. Often a phrase is used to help remember the order of the groups of the electromagnetic spectrum such as Roman ...

To us, light is the most obvious form of electromagnetic radiation, yet it makes up just a small portion of the electromagnetic spectrum. We invite you to take this self-guided tour, which covers ...