Peach peach

The peach is a drink with the physical effect, in which a peach is rotated by the formation of bubbles of carbon dioxide , and an original way of presenting and serving a drink. It was particularly popular in the 1950s and 1970s .

description

The peach is pierced with a needle, fork or other sharp object twenty to thirty times in different places, and finally placed in a bulbous glass. Then the glass is filled with ice-cold sparkling wine or champagne . The peach then begins to turn slowly at first, then to rotate faster and faster, i.e. to roll. Sometimes there can also be a change of direction. The peach is served in a glass with a knife and fork, sometimes with a spoon.

Physical explanation

Sparkling wine, in which carbon dioxide is sealed under high pressure, easily pearls out. These carbon dioxide bubbles (champagne pearls) collect mainly on the hairs and fibers of the velvety peach skin and their presence creates a buoyancy. If more bubbles collect on one side than on the other, the side with the larger number of bubbles experiences greater buoyancy than the other side, causing the peach to start rotating. Gas bubbles that are released into the air by the rotation above the mirror of the sparkling wine burst. Newly immersed peach skin initially has no or only a few gas bubbles. As a result, the downward rotating side of the peach contains on average fewer bubbles and therefore less buoyancy than the ascending side.

Because bubbles keep forming, the effect lasts. A change of direction occurs through a redistribution of the bubbles to the other side.

Web links

• Recipe for a peach peach. In: kochwiki.org. . 
• Peach peach. In: ndr.de. 4th November 2017. 
• H. Joachim Schlichting: Load transport in a lemonade glass . In: Science in Class - Physics . tape 39 , no. 10 , 1991, pp. 14 ( uni-muenster.de [PDF; accessed on January 24, 2018]).

literature

• Kochkunst: Lukullisches from A to Z, Verlag für die Frau, Leipzig 1985, 4th edition, ISBN 3-7304-0001-0 , p. 287 f.