There are a lot of things Gav and Dan don't have access to in the back garden. This combustion tube is one of those things. Time to go to Indiana! Follow Gav on Twitter - twitter.com/GavinFree Follow Dan on Twitter - twitter.com/DanielGruchy 2nd Channel! www.youtube.com/channel/UCgC4Nn0rqqdeqACnzaIMo_Q Thanks to: Purdue University for allowing us to film this combustion tube! - www.purdue.edu fb.me/PurdueEngineering @PurdueEngineers And Destin from Smarter Every Day for lending us the camera - www.youtube.com/user/destinws2 Watch our favourite videos! - www.youtube.com/playlist?list=PLbIZ6k-SE9SiarIg09JXUdK2kDX5_OB25 Buy Shirts here! store.roosterteeth.com/collections/slow-mo-guys Filmed at 1000fps and 28,500fps with the Phantom Flex 4K and the Phantom V2511 iMac Annihilator - Combustion Tube in Slow Motion - The Slow Mo Guys