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21047 Galileo ideal inclined plane demonstrator new curriculum standard high school inclined plane experiment demonstration instrument high school physics

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silicon carbide SiC30 sphere crystal structure model silicon carbide unit cell model silicon carbide diamond structure

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Simple Periscope Round Detachable Optical Periscope Fabrication Material Refractive Telescope Light Refraction Experiment

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Compass large compass physical experiment

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Bevel Friction Meter

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