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Solar System models (1 C, 16 P) ... Scratch building; Solar System model; Somerset Space Walk; Spaghetti bridge; Static grass; Sweden Solar System; T. Thorne ...
Solar System models, especially mechanical models, called orreries, that illustrate the relative positions and motions of the planets and moons in the Solar System have been built for centuries. While they often showed relative sizes, these models were usually not built to scale.
Models are obtained by three different means: kit assembly, scratch building, and collecting pre-assembled models. Scratch building is the only option available to structural engineers, and among hobbyists requires the highest level of skill, craftsmanship, and time; scratch builders tend to be the most concerned with accuracy and detail.
The Sagan Planet Walk has inspired the creation of other scale-model Solar Systems in the United States. The Delmar Loop Planet Walk in St. Louis, Missouri: "In 2006, I became aware of the Sagan Planet Walk in Ithaca, NY, and as an amateur astronomy buff, I found the idea of a scale model solar system to be a fascinating concept.
A scratch-built Warhammer 40,000 Land Raider in 1/18 scale utilizing paperboard and cardboard. A 7cm long scratch-built model of 1/700 scale Japanese gunboat Fushimi (1939), built out of paper and copper wire. A scratch-built 1:87 scale model of an old Vespa garage in Causeway Bay, Hong Kong 1950s, mainly built out of Foamcore and plastic card.
The epicyclic solar system of Ptolemy (c. 100 AD –c. 170 AD)—hundreds of years after the apparent construction date of the mechanism—carried forward with more epicycles, and was more accurate predicting the positions of planets than the view of Copernicus (1473–1543), until Kepler (1571–1630) introduced the possibility that orbits are ...