I can't really think of a reason why the piston returns to the original position!! any ideas?? I made a transparent QEV coaxial cannon out of the preform of a bottle. This was inspired by a Nighthawkinlight's project, although I added a transparent barrel and had to make everything work with a wooden piston and o-ring seal. The breech seal is just a piece of rubber from the inner tube of a bike tire. Thanks for watching!

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SUBSCRIBE ➡️ http://bit.ly/wsnsubscribe The RS Venture Connect concluded racing at the Para World Sailing Championships in Sheboygan, USA. Check out who snapped up the titles. Follow World Sailing 🌍⛵️ on: Facebook ➡️ http://www.facebook.com/worldsailingofficial Instagram ➡️ http://www.instagram.com/worldsailingofficial Twitter ➡️ http://www.twitter.com/worldsailing Website ➡️ http://www.sailing.org Newsletter ➡️ http://bit.ly/wsezine

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🏝️🐬 Come to the Morro Jable harbour and have the chance to see dolphins and whales in their natural habitat #magicandsailing 👉Book now at www.magicandsailing.com 📱+34 630 975 023 #fuerteventura #dolphin #travel #nature #naturelovers #animals #canarias #ocean #tour #animalshorts #wildlife #trip #catamaran

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