Tornado catamaran racing

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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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Give it a thumbs up if you liked this episode! Get your Sailing Into Freedom Crew T-shirt: https://teespring.com/stores/sailing-into-freedom Want more? Became our patron and get access to exclusive content. https://www.patreon.com/sailingintofreedom If you would like to support with single donations click here - https://www.paypal.me/Plukky Check out some gear we have on the boat: Inverter https://www.amazon.com/Xantrex-PROWatt-Inverter-Model-806-1220/dp/B002LGEMOQ/ref=sr_1_5_mod_primary_new?dchild=1&keywords=marine+inverter&qid=1616102481&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sr=8-5 handheld radio https://www.amazon.com/Standard-Horizon-HX210-6W-Compact/dp/B07KN6LKVG/ref=sr_1_6?dchild=1&keywords=marine+radio&qid=1616102542&sr=8-6 (As an Amazon Associate I earn from qualifying purchases and I greatly appreciate your support!) Also follow us on - Instagram: https://www.instagram.com/sailingintofreedom Facebook: https://www.facebook.com/sailingintofreedom Our website: https://www.sailingintofreedom.comGive it a thumbs up if you liked this episode! Get your Sailing Into Freedom Crew T-shirt: https://teespring.com/stores/sailing-into-freedom Want more? Became our patron and get access to exclusive content. https://www.patreon.com/sailingintofreedom If you would like to support with single donations click here - https://www.paypal.me/Plukky

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