| Ionizing radiation includes both electromagnetic waves and particle radiation. |
| Now researchers have used a slab of a new kind of material to focus diverging electromagnetic waves into a narrow cone. |
| The nature of nerve impulses, however, differs entirely from electromagnetic waves and sound waves. |
| Radiant energy is heat energy that is transmitted by electromagnetic waves that do not need matter in order to travel. |
| When a nuclear device is detonated, it emits a broad spectrum of electromagnetic waves that radiate outward from the detonating bomb. |
| Marconi was the first to use electromagnetic waves to transmit signals 101 years ago. |
