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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Madère en vue pour Tanguy de Lamotte

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FOR MORE INFO: https://www.freesailingtutorials.com/store/p5/one-on-one-online-sailing-tutorials.html Mark is an RYA Yachtmaster Instructor. He works for a variety of sailing schools in the Solent & abroad teaching from competent crew through Day Skipper and Yachtmaster Offshore. Mark's logged over 200,000 nautical miles in 35 years including a race circumnavigation. He has raced in the Southern Ocean nine times whilst skipper on two Castro Clipper 70s during the Clipper Round the World Yacht Race in (2013 - Team Garmin and 2019 - WTC Logistics. He has also skippered in the RORC Fastnet Race, Rolex Sydney Hobart Race, Swan World Cup and many other regattas and offshore races. NOTE: This description may contain affiliate links to products we enjoy using ourselves. Should you choose to use these links, this channel may earn affiliate commissions at no additional cost to you. We appreciate your support! freesailingtutorials is not a sailing school.

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@deea_buzdugan_sailing_photo

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Amazing Yacht with 2 JetSki and water toys available for charter in Miami

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