12-18 years
Where Are You? Locating by the Sun
어려움: ★
Studies on the Shadow of an Obelisk Used as Horizontal Sundial
어려움: ★
Measuring the diameter of the Sun
어려움: ★
Observations with a Pinhole Camera
어려움: ★
Let us measure the excentricity of the terrestrial orbit
어려움: ★
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Let us observe the daily path of the Sun
어려움: ★
Lisa Pathfinder paper model
어려움: ★
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Hubble Space paper model
어려움: ★
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Alma transporter paper model
어려움: ★
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Scale Models
어려움: ★
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The Sun above and below the local horizon
어려움: ★
Black hole
어려움: ★
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Path of the North pole
어려움: ★
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Teaching the origin of seasons
어려움: ★
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Sunrise and sunset position change
어려움: ★
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Solar Motion Demonstrator
어려움: ★
Universal simulator of the solar approach movement
어려움: ★
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★
Mirror, Mirror
어려움: ★
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★
Hot Air
어려움: ★
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★
Delta, Delta, Delta
어려움: ★
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Telescope Allocation Committee
어려움: ★
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Astro-Madness
어려움: ★
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★
Super Gelatin
어려움: ★
Telescope technology
어려움: ★