|
Browse this section for all of the
educational and expository articles available online at Science U. These are organized
according to subject, with brief descriptions, for convenient
browsing. To find specific information quickly, you may want to use
our search facility.
Geometry
- Triangle Tilings
and Polyhedra:
- Triangle Tiling refers to the process of taking
many copies of a single triangle and laying them next to each other
to fill out an area. See how this technique can be used to help you
think about the construction of polyhedra.
- Introduction
to Isometries:
- From triangles to teapots, this article traces the
connection between the theory of transformations of the plane and
computer graphics.
Astronomy:
- Seasons:
-
Understanding how and why there are seasons on Earth.
- Eclipses:
-
What is an eclipse? When do the happen? Why are they so rare?
- Phases:
-
Why does the Moon change its appearance? What is the complete cycle?
Do planets also show phases?
- Retrograde
motion of planets:
- What is "retrograde motion"? Do planets really
stop and reverse directions?
|
