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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Laser 4.7 sailors make it look slick and simple at the ISA Youth Pathway National Championship 2017 in Ballyholme.

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Conch horn + air horn = CONCH HORN OF DOOOOOM!

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Four years of building, not just a boat, but a home. We’ve sanded teak and shared late-night coffees, argued over tiny details and laughed over even smaller things. We’ve shaped this dream side by side — every bolt, every stitch, every plan held together by love and a shared vision. And as we stand here with just one month to go, I can’t help but think how rare and lucky it is… to find someone who shares the same dreams, the same values, and the same crazy idea of what an adventure should look like. Because in the end, it was never just about the boat — it was always about us.

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