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In one part of the article, they mention the laser obliterates everything it images while in another also noting the increased pulse rate allows them to create movies of the same reaction proceeding. Wouldn't they have destroyed the reaction they sought to image? What gives?

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The journalist probably didn't understand what they were saying.

Maybe it is destroyed slowly enough that the reaction can complete first. Maybe the laser has different power levels.

Have to go back to the source to find out for sure.

I assume the video frames are each from a different reaction, or many many reactions. Then they are combined to create a model of a single reaction.

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