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 an exclusive look at the 2024 Dufour 530, an exquisite 53 ft racer/cruiser sailing yacht available for $871,000 in Fort Lauderdale, Florida. This brand new vessel is the epitome of luxurious sailing, seamlessly blending the performance of a racer with the comfort of a cruiser. The Dufour 530 stands out with its innovative design and cutting-edge features, making it the perfect choice for sailing enthusiasts who demand both speed and luxury. With a sleek fiberglass hull, a spacious beam of 15 ft 9 in, and a maximum draft of 6 ft 4 in, this yacht promises an exceptional sailing experience. Key Features: Luxurious Layout: 4 cabins and 3 heads, ensuring comfort and privacy for all aboard. Performance and Comfort: Combines the architectural ethos of Dufour's Performance and Grand Large series. Innovative Design: Features a revolutionary bimini concept, spacious and safe deck, and three unique maneuvering configurations. Advanced Amenities: Includes Electric T50 winches, Signature Ambiance, Twin zone Bimini, Reversible AC, Bow Thruster, and Northern Light genset. Engine Power: Equipped with a powerful 110 Hp engine for superior performance. Ample Storage: Generous fuel capacity of 119 gallons and fresh water capacity of 190 gallons. This yacht is meticulously crafted to deliver unparalleled luxury on the seas, making it an opulent and practical choice for both private owners and charterers. Don't miss the opportunity to own this remarkable vessel! 🔔 Subscribe for more yacht listings and sailing adventures. 👍 Like and Comment to share your thoughts and experiences with luxury sailing yachts. Contact: Josef Buxton Fort Lauderdale Manager & Yacht Consultant Florida Licensed Yacht & Ship Broker josef.buxton@atlantic-cruising.com Mobile: +1 954-651-3626 #Dufour530 #LuxuryYacht #SailingYacht #YachtForSale #FortLauderdaleYachts #RacerCruiser #DufourYachts #2024Yachts #YachtLife #SailingAdventure

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