Sundial Experiments

Nhiều thí nghiệm Sundial, bao gồm phân và đông chí, la bàn, thước đo góc.

Good for Learning about Shadows around you.

SunDial Experiments include:

-Current Sundial (2D & 3D)

-SunDials in around the globe at Other Times

-Sun Rise and Set times for Solstice and Equinox

-How To:

use Sun as a Compass

use Compass as a Clock

-Historical information about SunDials/Stonehenge

-Compass

-Protractor for measuring your own angles

uses Three-js, SVG-canvas

has web-site: http://tinyurl.com/sundial-experiments