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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This is Drone Video Short 103 in a series of very short videos we have produced to give viewers a taste of our experiences sailing and cruising the Queensland Coast. Subscribe to our channel as we roll out a series of videos to help newcomers to boating and sailing learn all there is to know to make this a full-time life choice. We only have one life, so make it a good one!

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Racing in the PRADA America's Cup World Series Auckland kicks off in just one month. Are you ready to Fly? SUBSCRIBE to the official America's Cup channel: www.youtube.com/americascup Like America’s Cup On Facebook: www.facebook.com/americascup Follow America’s Cup On Twitter: www.twitter.com/americascup Follow America’s Cup On Instagram: www.instagram.com/americascup Stay up to date with the America’s Cup newsletter: www.americascup.com/en/newsletter The 36th America's Cup presented by Prada will be contested by the winner of the 2017 America's Cup, the Royal New Zealand Yacht Squadron represented by their team, Emirates Team New Zealand, and the winner of the Prada Cup, the challenger selection series which takes place in January–February in 2021. #AmericasCup #AC36 #Auckland2021

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Algum dos equipamentos náuticos necessários: Ancoragem, coletes salva-vidas, bote inflável, rádio VHF, GPS marítimo, binóculos, kit de primeiros socorros, boia circular, lanterna marítima, cabo de reboque, âncora de reserva, sinalizadores, extintor de incêndio marinho e por aí vai...

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The Official Logo of the 37th America’s Cup was revealed in Barcelona today at the Museu Maritim de Barcelona. Designed by Pràctica, a Barcelona and New York based design and identity studio, who were selected from a shortlist of three creative studios. Anna Berbiela, Partner of Pràctica said “We are obviously hugely honoured to have had our design chosen as the Official Logo of the 37th America’s Cup here in Barcelona. It is an iconic international sporting trophy taking place in an iconic international city, and this was the basis of our thinking behind the creative of the logotype and the Visual Identity.” SUBSCRIBE to the official America's Cup channel: https://www.youtube.com/c/americascup Like America’s Cup On Facebook: www.facebook.com/americascup Follow America’s Cup On Twitter: www.twitter.com/americascup Follow America’s Cup On Instagram: www.instagram.com/americascup Stay up to date with the America’s Cup newsletter: www.americascup.com/en/newsletter The 37th America's Cup will be Defended in Barcelona by four-time America's Cup winner, the Royal New Zealand Yacht Squadron represented by their team, Emirates Team New Zealand. #AmericasCup #AC37 #Barcelona

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