Youtube activity of "Grak70" (@Grak70) on "Veritasium" channel.
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UCJJGNZU-40MuXP34GI4fcdQ
Commenter youtube id
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Grak70
Commenter name
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@Grak70
Commenter name id
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"Risking My Life To Settle A Physics Debate"
Comments by video
"Testing the US Military’s Worst Idea"
"Why No One Has Measured The Speed Of Light"