Hand held Plexiglass model of spiral galaxy.
What it shows:
Handy size model of a generic spiral galaxy to show salient features or to describe structure of the Milky Way
How it works:
The model is a 30cm diameter Plexiglass disc 1cm in thickness, with a Ping-pong ball stuck through the center to represent the nucleus. The spiral arms of the galaxy are sprayed on with white paint, and we've stuck on a "you are here" arrow pointing to the outer reaches of one of the spiral arms at the approximate position of the Sun in the...
Read more about Spiral Galaxy