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Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). 1/8th speed (15fps) and improved video performance because somehow Youtube cropped the last frames of the other videos (?) 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!!

donotpushhere

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Bayliner 2355 Ciera https://www.scanboat.com/en/17449954

scanboat24

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502

un bel giro in bicicletta alla portata di tutti, nella ciclabile che collega Lido delle Nazioni al Lido di Volano, immersi in una pineta bellissima dove potrete incontrare tanti bellissimi daini. Grazie a Deltaciclando per l'immagine dell'anello delle valli di Comacchio. I miei social: Youtube: https://www.youtube.com/@MavarChannel Instagram: https://www.instagram.com/mavar58/ Facebook: https://www.facebook.com/mauro.folegatti Gruppo Facebook : https://www.facebook.com/groups/mercatinousatobikers Pagina Facebook: https://www.facebook.com/MercatinoUsatoBikers TikTok: https://www.tiktok.com/@mavar58

mavarchannel

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GlobeSailor is the number one agency specialising in yacht charter and cabin cruises since 2008. Thanks to our network of 1,000 certified professional charter companies in more than 180 destinations worldwide, we offer more than 14,000 boats for rent with or without crew: sailing boats, catamarans, yachts, schooners, motor boats... Visit our website to book your next cruise 👉 https://www.theglobesailor.com

globesailor-fr

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On our trip back into the bay during the Lightship race, we clocked one surf up to about 17 knots. We had a great time coming back into the bay under kite!

ourladydefiant

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6,600

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lavidaavela

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9,610