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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Vetus Wellenkupplung abziehen ohne Abzieher - so gelingt es auch ohne den passenden Abzieher mit Bordmitteln

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Tok my floating home and went from one end of norway to the other.

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Sailing when the rest are motoring. Footage of blazing fast sailing may get the most attention, but how about zooming around in the light stuff! In this video we slow it down for a minute and honor the cruising lifestyle that dominates the majority of time spent on a Gunboat. Footage of Gunboat 6801 cruising in the south of France by Gilles Martin-Raget / Guilain Grenier. Performance engineering of a Gunboat catamaran maximizes speed, efficiency, seaworthiness, and comfortable sailing motion. Equivalent attention to the interior and ergonomics optimizes luxury and practicality. When cruising the world with family and friends requires performance sailing and unmatched style - www.gunboat.com

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Drone footage captures the awe-inspiring Duncansby Stacks, their rugged formations dramatically meeting the ocean along a wild coastline. Experience nature's raw beauty. #DuncansbyStacks #Scotland #CoastalScenery #DroneFootage #Nature

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