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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St. Pete's Beach Part 2 - Join us as we snorkel the underwater ruins of Fort Dade at Egmont Key, explore Shell Key for sand dollars and birdlife, and ride with wild dolphins jumping in our wake on the way back to Gulfport. We end the day watching a stunning sunset at the iconic Don CeSar at St. Pete's Beach. Florida history, wildlife, and pure Gulf Coast adventure all in one episode! Cheers - Rodney & Cyndi #EgmontKey #FortDade #ShellKey #DonCeSar #Dolphins #FloridaVlog #SailingIntoNirvana #sailingcouple @SailingIntoNirvana Website: http://sailingintonirvana.com Social: http://facebook.com/@sailingintonirvana Patreon: http://patreon.com/sailingintonirvana Fire Dragon Spices: http://piraterodneys.com ___________________________________________________ 🎵 Copyrighted music licensed from Lickd. https://lickd.co Shadow Theory by Tom Boddy, https://t.lickd.co/l/NoPpj2yDr9w

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Bringing the world of Alubat to America. Alubat’s strength is building exceptional aluminum yachts for offshore sailing. Their reputation for quality fit and finish, as well as their experience sailing and living aboard got us excited about this project. With more than two decades building and selling long-distance cruising yachts, a partnership with Alubat was a natural fit. By representing Alubat we hope to expand their presence in not only the North American market, but all around the world. #alubat #aluminumboats #exploration #bluewatersailing #sailing #aluminumsailboat

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"🚨 DANGER TRONC : Énorme tronc d'arbre mortel traversant ma trajectoire navigation été Saint-Laurent Québec ! Voilier Belle Amie 1 évite de justesse – risques réels voile solo. 🌊 **Rejoins Voilier Belle Amie1 partout :** 📺 YouTube : https://www.youtube.com/c/voilierbelleamie1 📸 Instagram : https://www.instagram.com/voilierbelleamie1 🎵 TikTok : https://www.tiktok.com/@voilierbelleamie1 ⚓ Facebook : https://www.facebook.com/voilierbelleamie1 Pour encourager nos vidéos et l’entretien du voilier, vous pouvez passer par mon lien avant vos achats Amazon : https://www.amazon.ca/?tag=voilierbellea-20 Ça ne vous coûte rien de plus et ça m’aide à continuer à créer du contenu. #TroncFleuve #VoileDanger #SaintLaurentÉte #VoilierBelleAmie1 #NavigationQuebec #RealCreator #SailingDanger #QuebecVoile #DroneFleuve #VoileSolo #SailingLife #QuebecAventure

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All entries are in - It's judging time!

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