Youtube activity of "Jeffrey Marshall" (@jeffreymarshall4572) on "Science Time" channel.
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Commenter youtube id
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Jeffrey Marshall
Commenter name
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@jeffreymarshall4572
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"Brian Cox - Solving The Fermi Paradox: Intelligent Alien Life in Our Galaxy"
Comments by video
"How Big is The Universe?"
"The Devastating True Scale of Nuclear Weapons"