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