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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Victorian twins Lily and Matilda Richardson will are another team who defended their 2018 title and are ready to take on the world in Poland. www.sailingyouth.org.au/news/16355/

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EP06 - Exploring Erieau. #shorts #wideeyedadventures #sailinglife #fishing #lakeerie #travel

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A Humpback whale sings then breaches close enough for Nicole to feel the splash! Nicole filmed this while swimming in the open ocean near Moorea, French Polynesia (by Tahiti). Nothing to do with sailing but too good not to share with you right away... By the way, we were being guided by a whale expert who ensured we did not impact the whale in any way. Before this encounter we swam some distance away from a boat that was drifting with it's engine off, then allowed the whale to approach us (or not) on his own terms. Humpback Whales https://en.wikipedia.org/wiki/Humpback_whale Whale Breaching https://en.wikipedia.org/wiki/Cetacean_surfacing_behaviour#Breaching_and_lunging

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