When a quarter in pushed into dry ice, a strange thing happens. The quarter starts to quiver. It is a normal room temperature quarter. I did nothing to the quarter. This is not a trick but really happens. The evaporating CO2 creates a small air current causing the quarters to vibrate.
Make Slime Without Borax:
5 Easy Recipes for Gooey Homemade Ooze
How To:
The Best Investigatory Projects in Science: 16 Fun & Easy Ideas to Kickstart Your Project
How To:
Make Soap Out of Guava Leaf Extract for a Science Investigatory Project
How To:
Turn Milk into Strong Natural Glue with Baking Soda and Vinegar
How To:
Make Water Freeze into Ice Instantaneously
How To:
Make Hard Soap with Guava Leaf Extract & Lavender
How To:
Build a Simple Paper Bridge as a Science Experiment
How To:
Instant Ice! How to Waterbend in Real Life
How To:
Make a candle with a peanut and potato
How To:
Turn a Glass Bottle into an Electric Tornado Machine
News:
What Happens When You Mix Coca Cola and Milk
How To:
Use a Peltier module to create free electricity from heat
How To:
Make DIY Nitrogen Triiodide from ammonia & water purification iodine crystals
How To:
Make boric acid from borax
How To:
Perform separation by decantation in the chemistry lab
How To:
Make a color-changing solution with potassium permanganate & sodium hydroxide
How To:
Make copper hydroxide Cu(OH)2 with copper metal
How To:
Fold a model rocket parachute
How To:
Make potassium nitrate at home
How To:
Make Potassium Chlorate from Ordinary Household Bleach and Salt Substitute
How To:
The Best Investigatory Projects in Science: 16 Fun & Easy Ideas to Kickstart Your Project
How To:
Make Soap Out of Guava Leaf Extract for a Science Investigatory Project
Make Slime Without Borax:
5 Easy Recipes for Gooey Homemade Ooze
How To:
Turn Milk into Strong Natural Glue with Baking Soda and Vinegar
How To:
Make Water Freeze into Ice Instantaneously
How To:
Make Hard Soap with Guava Leaf Extract & Lavender
How To:
Build a Simple Paper Bridge as a Science Experiment
How To:
Instant Ice! How to Waterbend in Real Life
How To:
Make a candle with a peanut and potato
How To:
Turn a Glass Bottle into an Electric Tornado Machine
News:
What Happens When You Mix Coca Cola and Milk
How To:
Use a Peltier module to create free electricity from heat
How To:
Make DIY Nitrogen Triiodide from ammonia & water purification iodine crystals
How To:
Make boric acid from borax
How To:
Perform separation by decantation in the chemistry lab
How To:
Make a color-changing solution with potassium permanganate & sodium hydroxide
How To:
Make copper hydroxide Cu(OH)2 with copper metal
How To:
Fold a model rocket parachute
How To:
Make potassium nitrate at home
How To:
Make Potassium Chlorate from Ordinary Household Bleach and Salt Substitute
1 Comment
When the quarter is inserted in the dry ice, the ice starts to melt in contact with the quarter. As the coin is not perfectly vertical, it bends as the ice melt. Consequently, after a few seconds, only one face (the bottom of this face) is in contact with the ice. As the metal is far more conductive than the air (for the calories) the ice in contact with the quarter melts and evaporate quicker than on the over side. It causes an increase of the pressure and it pushes the quarter to the over side where the phenomenon repeats.
Finally, the movement find an equilibrium in periodic oscillations.
PS : Please excuse my english but i'm french ^^
Quentin
Share Your Thoughts