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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Still a fairly long way to go, but it's perfect sailing weather out in the Atlantic Ocean. The Sargassum weed can be a real nuisance as it messes with the wind vane steering. Easy enough to clear but often enough to get tiresome ⛵ FULL VIDEO HERE: https://youtu.be/r2xduSZ18uI If you love the sailing life, please SUBSCRIBE, LIKE, and COMMENT as it really helps the channel and we love to hear from you😁😁 *Thank You to all of you who support us in your different ways* ❤️ ✅ *INSTAGRAM* https://www.instagram.com/sailingnovavita/ ✅ *FACEBOOK* https://www.facebook.com/SailingNovaVita #sailing #yachting #boatlife #adventure

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www.elvstromsails.com

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odd little bugs dwelling in the sand

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