March 14th...giornata della matematica, Pi Greco day. Perchè non utilizzare le cifre di π per costruire una spirale, la spirale di Archimede, da appendere in classe o nel corridoio? Se appesa sopra un termosifone o un'altra fonte di calore, diventa una divertente attività ed esperimento con cui scoprire alcune caratteristiche dell'aria: la spirale ruota e si muove perchè spostata dall'aria calda. L’aria calda è più leggera dell’aria fredda perché meno densa e sale verso l’alto. https://maestramonica.it/pi-greco-day-la-spirale-di-archimede-matematica/

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At the Dusseldorf boat show, we ran across the Flaar 26 - a carbon-fiber high-performance sailboat from Hungary. It's extremely light and is designed to sail in light air, and has a number of customizable features. If you like sailing fast, this might be the right boat for you. http://features.boats.com/boat-content/2014/09/2014-flaar-26-first-look-video/ For more boating videos, visit http://www.boats.com. boats.com features boat reviews, how-to videos, special features, and information about new boats, boats for sale, and boating products—usually with a dash of fun. Our reviewers test the features, performance, and specifications of each boat, searching out the hidden details for a critical evaluation. If you're shopping for a boat, we want to help you make the best choice. And if you're just looking, we'll try to make it fun too. Subscribe to receive notification of new videos.

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Fuegos artificiales sitges

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https://store.playstation.com/#!/tid=CUSA00182_00

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