4C40.10 Dry Ice Rocker
Sublimation of dry ice
A quarter set in a block of dry ice rocks back and forth due to subliming carbon dioxide flowing past it.
-  Level block of dry ice
-  Quarter
-  Microphone
-  Camera
-  Safety goggles
-  Safety glove
- Focus the camera on dry ice.
- Set up the microphone.
- Dry ice can cause severe burns and blindness. Do not use in spaces with bad ventilation. Use with caution.
- Put on your safety goggles and gloves.
- Firmly push the room-temperature quarter into the dry ice, edge-on. Enough dry ice should sublime away to make a shallow groove in the dry ice. Do not go too deeply.
- When you let go of the quarter, it should rock back and forth. Catch the sounds with the microphone.
- PIRA 4C40.10
- YouTube video of the demo here
- Don't attempt this at home!
If you have any questions about the demos or notes you would like to add to this page, contact Ricky Chu at ricky_chu AT sfu DOT ca.