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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San Francisco-Shanghai record 12 maggio 2015 http://maserati.soldini.it/

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If you have wondered how we change the Skoota 28 powercat saloon seating area to a double bunk then this video is for you! http://sailingcatamarans.com/index.php/designs-2/6-powercats/264-skoota-28 You can build this powercat yourself in plywood using plans from Woods Designs. We also have three other powercats, at 20ft, 24ft and 36ft as well as a comprehensive range of sailing multihulls 14ft - 45ft that you can also build from plans. Please check out Woods Designs www.sailingcatamarans.com for more details. Thank you

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A Voyage of Discovery , The Ocean Race Documentary will be available on Discovery+ and Eurosport from November 3rd. Don’t forget to subscribe for more The Ocean Race: https://goo.gl/BzBCwU Check out our full video catalogue: https://goo.gl/nrB9ay Like The Ocean Race on Facebook: https://www.facebook.com/theoceanrace/ Follow on Twitter: https://twitter.com/theoceanrace/ Follow on Instagram: https://www.instagram.com/theoceanrace/ Read More: http://www.theoceanrace.com

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