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| From | jimp@specsol.spam.sux.com |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: The Physics Behind Popping Champagne Bottles |
| Date | 2015-12-30 23:32 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <t46elc-6e1.ln1@mail.specsol.com> (permalink) |
| References | <Eq2dndHgM9gV0BnLnZ2dnUU7-Y_OydjZ@giganews.com> |
Sam Wormley <swormley1@gmail.com> wrote: > The Physics Behind Popping Champagne Bottles >> http://www.wired.com/2015/12/the-physics-behind-popping-champagne-bottles/ > > >> Yay! Another trip around the Sun. New Year?s Eve is sort of like the >> birthday celebration for the Earth (or at least according to the >> Gregorian calendar). But it doesn?t just have to be about a party. >> You can also add some physics into your celebration. >> >> How Fast Is a Champagne Cork? >> >> Why does a cork shoot out of a champagne bottle? The first reason >> that cork sails across the room is because you made a mistake. Don?t >> shoot that champagne cork, instead hold your hand over it while you >> open it. Otherwise you could hurt someone?or even worse, spill some >> alcohol. >> >> The second reason is that champagne contains dissolved carbon >> dioxide. This carbon dioxide produces internal pressure that pushes >> on the cork. But here is the cool part. Normally, this internal >> pressure exerts an outward force on the cork that is balanced by a >> frictional force between the cork and the walls of the bottle (and >> maybe a force from the cork net on top of it). However, once the cork >> starts moving it transitions from static friction to kinetic friction >> with a lower value such that the forces are no longer balanced. The >> cork then accelerates and shoots out of the bottle. >> Grade school kids know this. -- Jim Pennino
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The Physics Behind Popping Champagne Bottles Sam Wormley <swormley1@gmail.com> - 2015-12-30 15:32 -0600 Re: The Physics Behind Popping Champagne Bottles jimp@specsol.spam.sux.com - 2015-12-30 23:32 +0000 Re: The Physics Behind Popping Champagne Bottles Sergio <invalid@invalid.com> - 2015-12-30 19:01 -0600
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