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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Sure, we live full time on a “sailboat” but …. What kind of sailboat?⛵️ Designed to sail around the world with Performance & Speed wrapped in a classically designed Catamaran. Folks, this is a 1998 Catana 471. 🌊 47 ft of length to cut easily and faster through the open ocean 🧘‍♀️ 25 ft of width to guarantee Stability even during the roughest of passages ⛵️ 1,474 Square Ft of sailing area Optimal wind catching 👉Daggerboards for a more precise upwind pointing experience We are planning on hitting our 10 THOUSAND nautical mile mark by the end of the year & this ol’ girl has helped us get there. Come & Say Hi on our YouTube Channel 🎥

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► Full test in Special Edition #18: https://www.multihulls-world.com/review/catamaran/vaan-r4-meticulous-design-using-recycled-aluminum ► The aim of this new Dutch builder is to launch a range of luxury catamarans based on a maximum of recycled elements - the hulls of the R4 are made of 50% recycled aluminum from window frames, road signs or license plates - and ecological materials such as cork or vegetable alternatives to leather. On deck, the two helm stations - one on each hull - and the absence of a rigid bimini are striking. The principle is to enjoy beautiful sensations at the helm. A removable cover can nevertheless be fitted. Inside, the yard wishes to break away from general trends and propose a design closer to the codes used in luxury hotels. ► TECHNICAL SPECIFICATIONS Builder: Vaan Yachts Length: 42’ (12.80 m) Beam: 23’3” (7.10 m) Displacement: 24,000 lbs (10.9 t) Mainsail: 592 sq ft (55 m²) Solent: 323 sq ft (30 m²) Engines: 2 x 10 or 15 kW Log on to our website to discover over 500 multihulls tests! Subscribe to our newsletter to take advantage of our promotions and boat show invitations! https://www.multihulls-world.com/ Follow us on Facebook! https://m.facebook.com/MultihullsWorldMag/?locale2=fr_FR Discover us on Instagram! https://www.instagram.com/multihulls_world/ Follow our multihulls news on Twitter https://twitter.com/multihullsworld?lang=fr Let’s talk about business on Linkedin https://www.linkedin.com/company/multicoques-mag-multihulls-world/ Like us on TikTok! https://www.tiktok.com/@multihullsworldmag @Vaan #vaanyachts #vaanr4 #electriccatamaran #aluminium #emmanuelvandeth #netherlands #igorkluin #multihullsworld #yachting #multihull #cruising #bluewater #sailing #sailcruising #seatrial #boatreview #bluewatersailing #powercat #boat #boatlife #boating #sailingday #magazine #YouTube #tiktok #catamaran #trimaran

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All American Marine is the exclusive manufacturer for Teknicraft Design™ in North America. The Wakatere, Teknicraft’s proven hydrofoil-assisted catamaran pilot boat, currently operates in the Port of Auckland, New Zealand. We work with each of our operators to design and construct their vessel to the highest quality, best value and superior performance for any vessel in its respective class. This Pilot Boat design will perform with EPA Tier3 engines. Other traditional monohull boats require more power and T4, which don’t fit! Wakatere is the first foil-assisted catamaran pilot boat in Australia or New Zealand. Built by Q-West of New Zealand, this unique catamaran design incorporates Teknicraft’s hydrofoil supported hull, and has a fuel consumption of less than 1 gal/nm fuel when cruising at 28 knots. With a top speed of over 40 knots it can reach a ship, and be ready to transfer a pilot within a short time.

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Video by Jason Bird, East of Flores 2017 cruise on the Seven Seas

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