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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I'd like to say thank you to those who have come along for this wild ride, we're a small channel and appreciate the support. We (Kayleigh & James) recently spent 6 days at The Boat Works and we have almost got the boat ready to move aboard and set sail in April. WATCH HERE: https://youtu.be/6HdiRWAra_s?si=IjzSHEq8UCsmHyvn Chapters: - Intro 00:00 - Becalmed 00:25 - Man Overboard Drills 03:00 - Challenging Navigation 04:37 - Haul Out 07:29 - Epic Sailing! 23:05 - Cyclone Watch 26:29 - Outro 26:49

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No edits, just simply sailing on the Caribbean sea. Blue water sailing at its best. Relaxing, easy, fun. Join us as we sail the waters Island hopping across the West Indies. From Puerto Rico to Trinidad. Jack the sailing Dog along with his parents and Brother Billy. #sailboat #caribbean #adventure #oceanwaves #waves #wind #bluewater #tropical #paradise #yacht #travel #exploration #islandhopping

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For more information visit: https://horizonpowercatamarans.com Follow Us!: Twitter: https://twitter.com/horizonpowercat Facebook: https://www.facebook.com/HorizonCatamarans Google+: https://plus.google.com/u/0/+Horizonpowercatamarans/about Instagram: https://www.instagram.com/horizonpowercatamarans/

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-Firenze 20 febbraio, ore 18.00, presso libreria LIBRI LIBERI via S.Gallo 25r; -Roma 23 febbraio, ore 17.00, Campo dei Fiori, sotto la statua di Giordano bruno; -Napoli 24 febbraio, ore 18.00, Galleria Umberto I, lato via Toledo; -Milano, location da definire. Vi aspetto! Ciao!

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