Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Unedited at 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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Once a year, La Galigo is back in #Bali for a dry dock after a long journey in the #sea. While in dry dock, we conduct maintenance on the whole boat in and out. We give our boat a complete makeover! Starting with cleaning all the barnacles off the hull, then repainting the entire ship. We're also taking care of the engine and making sure the deck and all the rooms are sparkling clean. We want our guests to have the best possible experience on board, and that means a #ship that's safe, comfortable, and looks great! ✉️ info@LaGaligoLiveaboard.com 💬 +62 812 2000 2025 (WhatsApp) 🌐 www.LaGaligoLiveaboard.com 🌐 Trip.LaGaligoLiveaboard.com (Schedule & Rates) ~~~~ #scubadiving #scuba #diving #diver #liveaboard

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Our sailing trip to Novigrad with ASA 104 course students . Creepy but amazing weather just before storm. For sailing holidays or sailing school visit: http://www.adriaticsailing.hr/?u=asa-104/en/st/3361 For excursions in Croatia http://www.croatia-experience.com/?l=hr&ispis=staticna&id=1577 http://sailingshiplarus.com/

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