'If you whip up a fresh batch of thorium-232 today, in 14 billion years this portion of its atoms will have decayed'
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PHYSICS: If you whip up a fresh batch of thorium-232 today, in 14 billion years this portion of its atoms will have decayed
If you whip up a fresh batch of thorium-232 today, in 14 billion years this portion of its atoms will have decayed
If you whip up a fresh batch of thorium-232 today, in 14 billion years this portion of its atoms will have decayed
PHYSICS
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PHYSICS