video Demonstrating Shivering Quarters in Dry Ice
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
Hazards:
1. Handle the dry ice with protective gloves.
happens.
Hazards:
1. Handle the dry ice with protective gloves.
happens.
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Nyxius
says:
Jan 28, 2010. 9:44 PMReply
Quarter is acting like a heatsink. Side in contact with the ice vaporizes the ice pushing the quarter away.
Nyxius
says:
Jan 28, 2010. 9:41 PMReply
it the Leiden frost effect for quarters!
20
itsthatsguy
says:
Oct 27, 2009. 8:32 PMReply
its a thermal expansion, when the quarter is cooled on the side that touches the ice, it bends pushing ti to the other side of the slot, then cooling that side, the process repeats.
14
dodo91
says:
Mar 2, 2009. 5:26 PMReply
how could you torture those inocent quarters like that. EVIL! just kidding! its cool.
14
dodo91
in reply to Mar 2, 2009. 5:26 PMReply
get it? cool. HA HA HA!
2
im_tux
says:
Jan 27, 2008. 6:13 AMReply
poor quarters are cold.... but awsome. figure out how to do it with a dllar and we'll give you a cookie! great isntructable
hybridracers
in reply to Feb 19, 2009. 7:42 PMReply
Just use a silver dollar..........can I have my cookie?
nave
says:
Nov 21, 2008. 11:35 PMReply
old george washington's cold thats all!
D34TH2U
says:
Aug 30, 2008. 4:14 PMReply
Same effect with a spoon bouncing on dry ice, the quarter is much warmer than the ice and makes it go from solid to gas and the expanding matter pushes the quarter off the side of the side of the ice and this happens repeatedly on each side so it goes back and forth.
SergeantRage425
says:
Jul 11, 2008. 11:28 PMReply
the atom particles are getting cold! so they shiver , just like humans
sodium1545
says:
Jul 7, 2008. 7:30 AMReply
DR Julius miller use to use a silver dollar.Great demo to use in classroom.Thanks
4
Shifrin
says:
Jan 24, 2008. 7:30 PMReply
This is So cool! Too bad i can't find dry ice around here, where do you think I can buy some? -Alex
bulet4myvlntne
in reply to May 28, 2008. 5:11 PMReply
sometimes if you go to baskin robbins or other ice cream places and ask for it and tell them your doing a science project theyll give it to you free. also i think meijer has it for sale to but you have to be 18 :(
INDUCTION_MIND
in reply to Feb 17, 2008. 12:29 AMReply
don't know where you are but I get mine at Hy-Vee. some other grocery stores have it in the frozen food section.
52
kentchemistry.com (author)
in reply to Jan 25, 2008. 9:12 AMReply
The Ice Cream man
trashymail
says:
Feb 8, 2008. 8:42 PMReply
The quarter is acting like a heat sink, transmitting heat from the room to the ice, melting it, then the escaping CO2 pushing the quarter off one side of the hole to the other. Once the quarter hits the other side, it vaporizes the ice there, pushing it back. The melting ice under the quarter also pushes up. Just like a heatsink, it requires a certain amount of surface area to radiate the heat. I guess this could be called a 'coldsink', since it's used to warm the object (ice) and cool the air.
7
Derin
in reply to May 17, 2008. 5:47 AMReply
not coldsink wrong analogy if HEATsink then this will be a COOLsink
6
conrad2468
says:
Mar 20, 2008. 9:42 PMReply
i did that once only i put it in our metal sink and the whole cube was shivering and bouncing around and if their small enough theyll float
1
Wetwillie1800
says:
Jan 29, 2008. 2:08 PMReply
This phenomenon can be easily reproduced with anything hard enough to not buckle under the vibrations. It is caused by the rapid release of carbon dioxide from the sublimation of the dry ice. The gas simply has no where to go, and releases itself by moving the quarter, causing the vibrations.
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