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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How we use the sun, solar panels, batteries and water maker to produce freshly grown water on our sailboat #sunpoweredyachts @sunpoweredyachts @DakotaLithium #dakotalithium

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http://www.sailingeurope.com/de/startseite Segelyacht Oceanis 50 Family als eine der besten Segelyachts ffür die man sich entscheiden kann; gross, komfortabel und sicher, auch in der Lage mehrere Personen aufzunehmen, Oceanis 50 ist die Wahl der Segelyacht für ein unvergessliches Segelurlaub. Lernen sie mehr über Beneteau Oceanis 50 Family: http://www.sailingeurope.com/de/yacht-katalog/segelboot/4/251/beneteau/oceanis-50-family

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Lego Mindstorms never ending marbel track

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#svmcbabe Wire grinding then sanding down the sailboat parts; leeboard, rudder, etc. Taking advantage of autumn in #atx with a mostly cloudy but FINALLY DRY(!) day.

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See full video here https://youtu.be/bxSxFOoFxV8 Check out some other videos of our around the world sailing trip here https://www.youtube.com/channel/UCI3FFCyGDg9ljPr5Tjm4CLg

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