Picking up a dropped BMW 310 GS 1200 GSA and 1250 GS Adventure

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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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Gardening in these remote islands is more then just a hobbie but an essential practice vital for survival. Walking barefoot through rough terrain to find the areas with the most suitable soil, sections of forest are burnt and cleared with basic hand tools such as machete and axe. The trees are then removed or used for stabilising the soil. This is when the women of the village come together to dig and plant the seeds of various staples. Today Poppy learns the way of planting a variety of yams that will later be remembered as 'Poppy's yams', signifying not only the day that a yachtie came to learn, but also get her hands dirty and help the local community. This act of unity is why these villagers have been able to thrive off growing their own food for so many generations. Places: Sudest Island, Louisiades Archipelago, Papua New Guinea Buy us a coffee ☞ https://buymeacoffee.com/onceuponareef Or Send us a gift ☞ https://throne.com/onceuponareef Follow us: ✔INSTAGRAM: @onceuponareef & @wheres.poppy ✔PATREON ☞ https://www.patreon.com/c/onceuponareef Poppy's YouTube Channel ☞ https://www.youtube.com/wherespoppy 📧 BUSINESS INQUIRIES - onceuponareef@protonmail.com Hey there, we’re Ryan and Poppy, a couple of adventure junkie sailors out to explore the most amazing reefs and islands in the world. We hope by documenting everything this lifestyle encompasses, we will inspire, raise awareness and support on going research to do our part in protecting these natural life systems. Subscribe if you’re on board! #onceuponareef #traditionalgardening #womenofpng

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