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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Ok all you future sunset sailors — I want to see this idea take off! 🌅 While you’re out on the catamarans, snap your most creative shadow sail photo op. I know our awesome guests are up for the challenge — show us what you’ve got! Maybe there’ll even be a prize for the fan favorite… 😉 #Sunset #ShadowSails #CocoaBeachCatamaran

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In May 26th 2018, at the Benetti shipyard in Darsena docks in Viareggio, the new Full Custom Mega Yacht M/Y FB803 50-meter christened "Blake" was launched. She has a distinctive interior layout, featuring exceptional liveability, designed in partnership with London-based firm Bannenberg & Rowell Design. Her remarkable habitability, impressive range (4,000 nautical miles at 11 knots) and low level of noise and vibration make the yacht ideal for spending long periods on board, in total comfort. Read more: http://www.benettiyachts.it/new-launch-for-benetti-m-y-blake/

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