Tiny engine runs hotter than the sun to probe the frontiers of thermodynamics

Scientists have created the world's hottest engine running at temperatures hotter than those reached in the sun's core. The ...
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On the relative intensity of the heat and light of the Sun upon different latitudes of the Earth

Meech, Levi W. 1856. On the relative intensity of the heat and light of the Sun upon different latitudes of the Earth. Washington, D.C.: Smithsonian Institution. In Smithsonian Contributions to ...