Pneumatic coaxial piston air cannon @4atm

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Yet another poor quality video of the homemade pneumatic cannon made out of a cheap air pump for using the own piston as it works like a one way valve. Thus, you don't need to leave a small clearance for air to leak and load the main chamber. The piston let's the air flow into it, but on the shooting phase it blocks it. It's the same that happens when you pull the handle of the airpump (air enters the cylinder) and then you push it (air is NOT released, but compressed). The target in this video is the back plate of a pringles can. At 3,5-4 atm as seen here it pierces it. At 6 it goes through. At 7,5 the rear cap explodes XD And no... I'm not in undies. It's a swimming pant (summer in Spain!!) XD So please focus on the ballistics and keep YOUR mating rituals for your friends and beloved ones. Another funny fact. The rear cap explossion propelled the main body against a furniture and the aluminum cannon BENT. So poor accuracy now, but back before the accident it was kinda good...like let's say hit an apple at 15 meters (yeah, I know but I didn't want to put my eye or face close to the gun, so it surely would have been better. To the naked eye, the BB looked like flying pretty straight) Thks4watching All likes reserved

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İstanbul Bilgi Üniversitesi sponsorluğunda, Vira Yatçılık tarafından 2013 yılından beri düzenlenen BİLGİ Cup Liseler Arası Yelken Yarışları her yıl santralistanbul Vira Kayıkhane açığında Delphia 24 One Design tipi teknelerle yüzlerce liseli yelkencinin katılımı ile gerçekleştiriliyor! Sizler de bünyenizdeki yelkencilerle antrenman yapabilir veya düzenlenecek yelken eğitimleri ile öğrencilerinizi sonraki etkinlikler için sıfırdan yarışlara hazırlayabilirsiniz. Yarış takvimi için bizi takip edin! Vira Yatçılık | Delphia 24 Türkiye www.virayatcilik.com