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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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I lost the kill cord and had to ask a friend to tow me and our guests back to Britican. That’s the fifth time in ten years that I’ve lost the kill cord. Have I learned yet? It’s all experience-right?! It also shows our guests that living the cruising life requires humility. #sailinglife #learntosail #sailingexperience #livingthedream

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Welcome to #SeaTV - #Sailing #channel Check out more videos from Sea TV- sailing network channel & please do Subscribe for more. About the Channel: https://www.youtube.com/watch?v=p4AUVjzZXWM The channel provides the following content: * Pilot Marina/ port- Know your way to a new marina: https://www.youtube.com/watch?v=KyYZtHztXt8 * Coverages of international boat shows: https://www.youtube.com/watch?v=xbXSHzWwVRI * Reviews and helpful tips for local navigation: https://www.youtube.com/watch?v=2W4i0SZhDUI * Training videos of safety drills and emergency situations: https://www.youtube.com/watch?v=9918s3wTRl8 * Travelogues: https://www.youtube.com/edit?o=U&video_id=JXzKD6YJT4k * Action: https://www.youtube.com/watch?v=K5NYod4Um5s We invite anyone who is passionate about the sea & sailing adventure to Subscribe, like our videos, comment & share. We believe in the power of community in providing the best and most valuable information and welcome your suggestions, comments, updates and advice. Sea TV website: http://sealove.tv Like us on Facebook: https://www.facebook.com/sealovetv/ Share Sea Love! and keep it clean…

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