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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Soe Besar Vanrei 31,9 m | 7 Cabins | 16+1 guest Introducing Soe Besar Vanrei, a phinisi boat that redefines luxury and adventure in the stunning waters of Indonesia. Designed to accommodate up to 16 guests (+1 extra bed), this 31.9-meter-long vessel offers the perfect balance of comfort and elegance for group adventures or private charters. With 7 thoughtfully designed cabins, Soe Besar Vanrei ensures every guest enjoys privacy, relaxation, and a home-away-from-home ambiance while sailing. for more info, Contact Us: Whatsapp: +628116699948 Instagram: @ royalvoyage_id website: www.royalvoyage.co.id #labuanbajo #komodonationalpark #flores #indonesia

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Two yachts sail side by side until a sudden gust forces one to tack — the boom swings across dangerously close to the other skipper! A perfect mix of panic, laughter, and real sailing drama caught on camera. #BoomSwingTrouble #SailingShorts #YachtRacing #SailingFails #SeaAdventure #YachtLife #BoatDrama #RealSailing

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