What Happens When Gold Atoms Merge in This Fascinating Video?

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The discussion centers around a YouTube video showcasing the merging of gold atoms, which has captivated viewers due to its visual appeal. Participants express curiosity about the scientific explanation behind the phenomena depicted in the video. A link to a related research paper is shared for further reading. There is speculation about the nature of the merging process, questioning whether the atoms actually merge or if they are ejected from the screen. The conversation highlights the intriguing and unexpected outcomes observed in the video.
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I stumbled across this on youtube and wondered if someone could explain what we are actually looking at here.

Looks amazing!

 
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I thought I might add this video (real time) of bunches of gold atoms merging, in this thread for avoidance of thread proliferation, if you like the top one you might like this one too;-


The ending is, errr..., 'unexpected'. :) Does it actually merge, or maybe it was ejected out of the screen?
 
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