Vuvuzela!

I've won a vuvuzela! During the Soccer World Cup, our local grocery chain is running a lottery where one gets scratchcards for shopping. On one of the cards, I've scratched off exactly four vuvuzela icons, meaning I now own this wonderful plastic horn, just in time for this afternoon's quarter finals of Germany vs. Argentina.It neatly comes in the German colours, and with all necessary assembly and safety instructions (120 dB or so in front of the horn can be dangerous...)As this is a physics blog, you may expect me to say something about the physics of the vuvuzela, but it is too hot today, and I have to prepare for the match. Besides, there are already great blog posts on the vuvuzela, for example atScience 2.0, where it is explained that all horns work the same way. You blow into them and that creates a vibrating column of air but the construction of the horn means certain resonant frequencies will occur, or at A quantum of knowledge. And the New Scientist has a nice