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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Welcome to Vally’s Galley – A Taste of the Sea! ✨ Join me in the heart of the boat’s galley as I prepare one of my favorite recipes from my new cookbook! Experience the magic of cooking at sea—using fresh, local ingredients, simple techniques, and a touch of creativity. This book is all about Mediterranean flavors, wellness, and making the most of limited space on board. 🔹 Sneak peek into the recipes 🔹 A glimpse of life in the galley 🔹 Tips for cooking effortlessly on a moving boat 📖 Pre-order now & bring the taste of the sea home! 🌊💙 #WaveFood #SailingKitchen

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