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Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Edited from to 1/4th normal speed. I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!
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Epic Navigator
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At Aircraft Interiors, our booth demonstrations were designed to highlight services and applications that improve operational efficiencies and increase passenger engagement.
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O veleiro Caos Calmo fará sua estreia na Semana Internacional de Vela de Ilhabela, este ano. O comandante Frederico Campos Didoné fala a respeito, confira!
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🌊 Cap sur l’été 2025 ! Après plus de 1500 milles nautiques parcourus entre l’Angleterre, Ouessant et jusqu’au mythique Cap Finistère en Espagne. 🧭⛵️ Je sais que beaucoup d’entre vous étaient impatients d’avoir des nouvelles — vos nombreux messages privés nous ont vraiment touchés 🤍 Ces dernières semaines ont été très intenses professionnellement 💼, ce qui a un peu ralenti le montage… mais promis, je fais au mieux pour vous faire revivre ces moments au plus vite 🎬✨ 👉 Les vidéos arrivent très bientôt, alors embarquez avec nous pour revivre ces navigations estivales entre tempêtes, belles rencontres et moments suspendus en mer 🌅 Merci pour votre fidélité et votre patience 🙏 Cap sur l’aventure, toujours ! #VoilierPierrickII #Navigation #SailingLife #Ouessant #CapFinisterre #Angleterre #AventureEnMer #SailingFrance #SailingAdventure #1500Milles #SummerSailing Thierry et Christel
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