Within the fiber, the pulse travels backward - and faster than the speed of light.

Electrical pulses produced by these changes could travel very quickly from the plant to the other end of the root.

The pulses can travel about six feet into the bottom, a useful distance for revealing small objects.

Plus another pulse traveled to the bridge on the navigation control lines and fried our helm.

The other paths may be identical or similar, except that the sound pulses travel downstream.

This pulse travels back through the runner and rams air through the valve.

And if the pulse is traveling in the direction of the water flow, it gets a boost from the flow.

The pulse travels as well through vacuum as through air.

Gravitational waves affect the time it takes the pulses to travel from the pulsar to a telescope on Earth.

As the current pulse travels through the tube, it ionizes the atoms, causing them to jump to higher energy levels.