What is the NEW Silver Play Button REALLY made of?!
The video description doesn't remotely need that ?! at the end.
That being said, the process that the youtubers here go through to find out what specific elements are in the 'silver' play button is fascinating. The (?) Energy Dispersive X-ray Spectrometer is something that's new to me.
I'm particularly fascinated by the results at 5:39 showing the elemental makeup at various depths of the 'button.'
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