PIRA # |
Demonstration Name |
Demonstration Description |
Image Availabe |
| 1C20.10 | Guinea and Feather | Drop a penny and feather in a glass tube, first full of air and then evacuated (details). | Yes |
equipment
- vacuum pump, glass tube, coin, feather
setup
- <5 minutes (time to securely position the glass tube and connect to the vacumm pump)
estimated time
- 5 minutes
additional instructions
- none
