Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). 1/8th speed (15fps) and improved video performance because somehow Youtube cropped the last frames of the other videos (?) 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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Oggi è il centesimo giorno da quando abbiamo iniziato a fare i reel. Siamo partiti da Lignano Sabbiadoro, in Friuli, e in 100 giorni (non consecutivi) siamo giunti qui, al “punto di partenza”. Fa ridere dirlo perché in realtà già in questo tragitto tutto è cambiato, noi siamo cambiati, la barca è cambiata. Mi domando cosa accadrà all’arrivo in Martinica. Oggi è il centesimo giorno e volevamo celebrarlo con un gran video in pompa magna. Invece abbiamo pulito la barca a fondo, fatto un pezzo di spesa, fatto la lavatrice e poco altro. Un giorno ordinario insomma. In questa vita non ordinaria ✨

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I will need to do a longer more in depth boat tour for YouTube.

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We live on a sailboat two dogs Mom and Dad. Subscribe to see how we do it This is Billy's first lesson in swimming. He's fierce out of the water. In the water not so much. More images of the Caribbean or Yellowstone National Park as we travel check out https://garyfelton.com/ for Wall art

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Tour de Corse 2015 à la voile à bord du voilier Luckystar - une aventure inoubliable ! http://www.voilier-luckystar.com/tour-de-corse-a-la-voile/

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