"A raisin dropped in a glass of fresh champagne will bounce up and down continuously from the bottom of the glass to the top” is a popular observation. ”Champagne Trick: A raisin dropped in a glass of champagne will keep going up and down” was published in a 1956 newspaper.


9 July 1956, Pittsburgh (PA) Press, “Science Notes” by John Troan, pg. 18, col. 7:
Champagne Trick
A raisin dropped in a glass of champagne will keep going up and down.

16 January 1958, New Cambria (MO) Leader, pg. 4, col. 6:
A raisin dropped in a glass of champagne will continue to rise and fall in the glass.

6 July 1967, Shiner )TX) Gazette, “That’s a Fact.” pg. 4, col. 1:
THE RISE AND FALL OF A RAISIN!
A RAISIN DROPPED IN A GLASS OF CHAMPAGNE WILL MOVE UPWARDS AND DOWNWARDS IN THE GLASS!

11 May 1979, Dallas (TX) Morning News, “Now You Know” (UPI), pg. 12B, col. 1:
A raisin, dropped in a glass of champagne, will rise and fall continuously in the glass.

26 December 1999, Austin (TX) American-Statesman, “Far-fetched, far-flung facts, Facts or fiction?” by Ernest Murray, pg. D3:
A raisin dropped in a glass of fresh champagne will bounce up and down continually from the bottom of the glass to the top.

Twitter
Vaskin Kissoyan‏
@VaskinK
A raisin dropped in a glass of fresh champagne will move up and down from th top to the bottom continuously.
6:08 PM - 29 Apr 2008

Twitter
Andy‏
@andy_r
A raisin dropped in a glass of fresh champagne will bounce up and down continuously from the bottom of the glass to the top.
2:54 PM - 30 Jun 2008

Google Books
Foodie 500!:
The Top 500 Most Useful, Fun, & Shocking Food Facts
By Michele Ehlers
Published by author
2014
Pg. ?:
A raisin dropped in a glass of fresh champagne will bounce up and down continuously from the bottom of the glass to the top.

Google Books
Strange But True! - Facts That Will Amaze You
By Jenny Shine
Lulu Publishing (Lulu.com)
2016
Pg. ?:
A raisin dropped in a glass of fresh champagne will bounce up and down continuously from the bottom of the glass to the top.