Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). 1/8th speed (15fps) and improved video performance because somehow Youtube cropped the last frames of the other videos (?) 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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Rodney Russ, Founder and Owner of Heritage Expeditions, invites you to join him on an epic voyage through the NE Passage in July and August 2017 aboard the 50-guest Spirit of Enderby. For more information, visit: http://trips.heritage-expeditions.com/northeast-passage/

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Full-time traveling family of 6 sailing around the world. A bordo de um veleiro, pelo mundo em família Acompanha a nossa aventura! Instagram: @wind.family -- Vídeo Produções @joanajesus.videographer Música "Tempo" @JJesusmusic 家庭 帆船 带孩子旅行 和孩子一起航行 和家人一起航行

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This video is about Bali Catamaran Windless and Anchoring System By: Ian Van Tuyl for additional information on that all new Bali 4.3 sailing Catamaran please contact: Ian Van Tuyl 1-619-507-4416 ivtyachtsales@gmail.com

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