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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Catamaran Cruiser Lil Hobo Houseboat decked out for Christmas

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The 𝗰𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗽𝗿𝗼 𝗹𝗶𝗻𝗲, specially designed for 𝗳𝘂𝗿𝗹𝗶𝗻𝗴 𝘀𝗮𝗶𝗹𝘀 where the line must be spliced endlessly. This line contains a blend of 𝗴𝗿𝗶𝗽 𝗳𝗶𝗯𝗲𝗿𝘀 and 𝗗𝘆𝗻𝗲𝗲𝗺𝗮®. A thin 𝗽𝗼𝗹𝘆𝗽𝗿𝗼𝗽𝘆𝗹𝗲𝗻𝗲 𝗰𝗼𝗿𝗲 keeps the line round in furling systems. The special construction provides 𝗲𝘅𝘁𝗿𝗮 𝗴𝗿𝗶𝗽. The line is easily spliced endlessly without thickening. Ideal for furling mainsails in boom or mast. https://www.premiumropes.com/continuous-pro ________________________________________________ #mainfurling #mainsail #premiumropes #xyachts #sailstagram #ropes #premiumropes #boomfurler #furlingboom

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