| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 8C10.00 | Models of the Universe | | |
| 8C10.10 | expanding universe | PIRA 200 | Pull a rubber hose threaded through five large styrofoam balls. |
| 8C10.10 | expanding universe | 8C10.10 | Pull a rubber hose threaded through five large styrofoam balls. |
| 8C10.10 | lineland expanding universe | AJP 50(6),571 | Pull on a rubber rope with "galaxies" attached. |
| 8C10.11 | expanding universe on white board | PIRA 1000 | |
| 8C10.15 | inflating balloon | PIRA 1000 | |
| 8C10.15 | inflating balloon | 8C10.15 | A balloon with galaxies drawn on is blown up with compressed air. |
| 8C10.20 | bubble universe | PIRA 1000 | |
| 8C10.20 | bubble universe | 8C10.20 | Use a straw to blow bubbles in liquid soap. |
| 8C10.30 | galaxy model | PIRA 1000 | |
| 8C10.30 | model of the galaxy | 8C10.30 | Show a 16" diameter galaxy model. |
| 8C10.40 | Klein bottle | PIRA 1000 | |
| 8C10.40 | Klein bottle | 8C10.40 | A Klein bottle has been made from a 20 L flask. |
| 8C10.45 | Moebius strip | PIRA 1000 | |
| 8C10.45 | Moebius strip | 8C10.45 | A strip of aluminum about six inches wide and six feet long is made into a Moebius strip. |
| 8C10.50 | saddle shape | PIRA 1000 | |
| 8C10.50 | saddle shape | 8C10.50 | |