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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CHAPTER 1/6_EQUIPMENT & RANGE Let yourself be tempted by the LibertyKite® and discover KiteBoating! Thanks to the LibertyKite®, you can enjoy the pleasure of KiteBoating and its silent, ocean-friendly way of sailing, in complete simplicity. This series of step-by-step tutorials shows you how to transform any boat into a sailboat in a matter of moments using kite traction. The LibertyKite® is also a crucial piece of emergency equipment in the event of dismasting or engine failure. Easy to install, the LibertyKite® increases your level of autonomy, allowing you to go further. After this series of videos, kiteboating will hold no more secrets for you! Hoist your LibertyKite® and ''bon vent!'' ©MidiProd/Patrice Hauser

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San Francisco-Shanghai record 17 maggio 2015 http://maserati.soldini.it/

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