[MCN] Get 2 identical bricks. Paint one white, the other black. Set them out in the sun. Leave. Come back in a couple hours. Touch one brick, then the other

[Lance Olsen]

Child play : Demonstrating albedo to younger kids et al


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“Oxygen in the atmosphere might be reduced several percent below the present level without adverse effects.”
 
Preston Cloud and Aharon Gibor. The Oxygen Cycle.  
Scientific American, September 1970

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