Planet Jupiter Inside

Jupiter is primarily composed of hydrogen with a quarter of its mass being helium, though helium comprises only about a tenth of the number of molecules. It may also have a rocky core of heavier elements, but like the other giant planets, Jupiter lacks a well-defined solid surface. Because of its rapid rotation, the planet’s […]

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Paper Mache Planet Mercury

Starting around 1725 in Europe, gilded papier-mâché began to appear as a low-cost alternative to similarly treated plaster or carved wood in architecture. Henry Clay of Birmingham, England, patented a process for treating laminated sheets of paper with linseed oil to produce waterproof panels in 1772. These sheets were used for building coach door panels […]

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