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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Some of you may remember Sasha, the little falcon we rescued after finding her exhausted in the ocean. She couldn’t fly and was far too weak to survive on her own, so she became an unexpected crew member aboard our catamaran for about two weeks. We made sure she had food, a safe place to rest, and time to recover. Day by day, her strength returned until she was finally ready to fly free again. Looking back at these memories reminds us how lucky we were to share part of our journey with such a beautiful wild bird. Sometimes the best adventures are the ones you never planned. ❤️🦅 #CatsOnACatamaran #FalconRescue #WildlifeRescue #BoatLife #AdventureCats #SailingLife #Nature #BirdRescue #TravelVlog #Catamaran

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