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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From Wobbly to Wow in 25s #boat #sailing #shorts

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Join me, Capn Tinsley, on Salty Podcast #46 as I chat with Tania Aebi, the trailblazing sailor who, at just 18, embarked on a solo circumnavigation aboard her 26-foot sailboat Varuna in the 1980s—navigating without GPS and changing sailing history forever. LIVE Wed, 12/11/24, at 6pm CST. Podcast Playlist: https://tinyurl.com/SaltyPodcastPlaylist Tania Aebi’s journey, completed between 1985 and 1987, marked her as the first American woman—and one of the youngest individuals ever—to sail around the world alone. Her memoir Maiden Voyage continues to inspire sailors globally, illustrating her incredible story of resilience, self-discovery, & adventure. Details about her groundbreaking voyage and insights into solo sailing will be a must-listen for anyone passionate about sailing. #SaltyAbandon #SaltyPodcast #Sailing #TaniaAebi #SoloCircumnavigation #SailingLegends

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