Why does a raisin dropped in a glass of fresh champagne bounce up and down continuously?
It bouces up and down continuously from bottom to top. Why does it do this? Please back your answer up with hard evidence, possibly a website explaining the phenomenon. If it is the bubbles pushing the grape UP, why don’t the bubbles KEEP it there? Why does it come back down again? Why doesnt it just sit somewhere in the middle of the glass?
Guineapig
on February 8th, 2012
According to the source I found, “A raisin dropped in a glass of fresh champagne will bounce up and down continually from the bottom of the glass to the top. This is because the carbonation in the drink gets pockets of air stuck in the wrinkles of the raisin, which is light enough to be raised by this air. When it reaches the surface of the champagne, the bubbles pop, and the raisin sinks back to the bottom, starting the cycle over.”
This is very interesting to me because I had never heard about this one before. You learn something new all the time.
Source below:
BlindPoet
on February 8th, 2012
probably cos it get so darn drunk it doesn’t know which way is up and which way is down! hahahaha
AgeingNature
on February 8th, 2012
because of the champaine bubbles
http://www.factandtherory.com/champainbubbles...
Mayumi
on February 8th, 2012
wow i gotta try that! now if only i had enough money for
sham-pag-en, or even raisens for that matter
BigBoy
on February 8th, 2012
I think the better question is, “Why in the world would you put a raisin in a glass of champagne?”
You know, in all my years, I have never once put a raisin in my champagne.
Gothicbunny
on February 8th, 2012
I’ll go with Kyle’s answer with some additions.
The champagne has CO2 in solution and this will form bubbles whenever possible. The raisin provides nucleation sites which allow bubbles to form on them and the total density of raisin + bubbles becomes less than that of the liquid causing it to rise. The bubbles burst and the raisin falls, the process then repeats.