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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Impara l'importanza della manutenzione della tua barca! In questo video, scopriamo i segreti per una corretta manutenzione del motore, dell'impianto elettrico e di altri componenti cruciali, sia per barche a motore che a vela. Consigli pratici per una stagione nautica senza problemi! #manutenzioneBarca #barcaMotore #barcaAVela #consigliNautici #manutenzioneMotore #invernoBarca #sicurezzaNautica #tipsNautica #passionenautica #tutorialNautica

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Sunrise to sunset what a memorable day. We left Loutra, Kythnos, Greece in the am to a stunning sunset and glassed off waters. We had plenty of great sailing at 7 knots with both sails out and an average of 25 knots of wind to help us cross to the mainland and drop anchor in Varis Bay off Varkiza Beach, Greece. We had a quick dip in the sea at sunset to cool off before bed. We will miss our many friends in the Cyclades and Dodacanese but we are excited to be out of the main Meltemi path. Corinth Canal here we come ⛵️🙌🏼

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