Episode: 2235 John Perry, Lord Kelvin, Earth’s age, and the role of conduction and convection. Today, we see history evolving.
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Episode: 2235 John Perry, Lord Kelvin, Earth’s age, and the role of conduction and convection. Today, we see history evolving.
Episode: 2235 John Perry, Lord Kelvin, Earth’s age, and the role of conduction and convection. Today, we see history evolving.