The burst of gunfire lasted no more than three seconds.

The second, more prolonged burst of interference had lasted just over three weeks.

People were horrified and scrambled to turn the current back on, although no one is quite sure how long the second burst lasted.

The burst of fire lasted but a few seconds.

Yet the burst lasted only a few tens of seconds.

The burst lasted, as best we can estimate, six minutes.

Which meant that a burst of three lasted a fifth of a second.

No one knew how long the burst of synthesis would last, but for now the whole was far greater than the sum of its parts.

The burst lasted approximately 30 seconds and had one peak in its light curve.

This burst of activity lasted less than ten seconds.