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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My wife and her new kayak. She wanted to buy this so they kids could have some fun at Catalina Island, and so she could fish from it. -~-~~-~~~-~~-~- Please watch: "SBS ep.121 - Sailing Back from Catalina and a Postmortem" https://www.youtube.com/watch?v=DPxhSgXk8sM -~-~~-~~~-~~-~-

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The spring is here ! All over Greece, you can feel the weather changing and temperature rise! We could not recommend this experience more if you have time in Athens, especially the afternoon trip since we got to watch the sunset! The home cooked meal was our favorite meal in Greece, definitely the highlight of our trip!!! We debated booking a second night just to get the experience again! #athens #greece #besttour #athens riviera

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Follow and comment to #supportyourlocalsailors and our project on: IG @ag.sailing Facebook @ag.sailing YT @agsailing7908 Thanks to our precious sponsors: @bestwind_stores @roblineropes @murphysailcom @aclasscat #sailing #boat #sail #training #watercolor #water #vela #fun #fast #water #madeinitaly #garda

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Check out the full tour and a sea trial of this beautiful Yacht: https://youtu.be/fPbuu_lPxTU and https://youtu.be/-0UUJ6O_tcE #yachts #boats #boatshow #silentyacht #sailing #solar #solarenergy #solarelectric #victron #coupleschannel #youtubechannelforcouples #karaandnate #sailingyacht #sailingboat #lavagabonde #supercars #supercarblondie #gonewiththewynns #superyacht #enesyilmazer #waterfrontproperty #waterfrontrealestate #realestate #youtubeshorts #superyacht #liveaboard #travelvlog #alternativeliving #alternativelifestyle #nauticaldecor #retirementplanning #lifegoals

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