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!!

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Ready to island hop? Get 15% off your Komodo Island & Raja Ampat escapade! Let's make waves! 🌴⛵ Reach out to us and start planning your unforgettable journey! ☎️ +62 811 3830 4646 🌐 liveaboardindonesia.com 📩 info@liveaboardindonesia.com #LiveaboardsIndonesia #Liveaboards #LiveaboardsLife #Scubadiving #WhaleShark #WhaleSharks #ExploreSumbawa #Sumbawa #DivingwithWhaleShark #yachting #yachtlife #IslandLife #AdventureAwaits #LetLoose #OceanMagic #WhaleEncounter #SnorkelDreams#YachtLife #SailAwayWithUs #MemoriesOnDeck

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Is there any better way to celebrate the 4th of July than on the water? 🤔 Yeah... we didn't think so. 🛥️ Happy Independence Day from your friends at Discover Boating! 🇺🇸 🎆

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Hola a todos! Desde octubre hasta mayo tenemos pensado realizar excursiones con nuestro velero DESCARAT desde el puerto de Burriana a las islas Columbretes cualquier día de la semana. Abierto a grupos y a un precio increíble. Puedes echar un vistazo en: www.navegaporcolumbretes.com #navegar #sailing #blessed #burriana #columbretes #pescar #snorkel #snorkeling #relax #diversion #risas #amigos #familia

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