26:06From the PhD Lab: How do biofilms help keep bacteria alive? - with Josh Horton
The Royal Institution
What would Halloween be without exploding pumpkins? In order to not find out, we enlisted Dan Plane, our resident pumpkin exploder, to investigate the explosive power of acetylene. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Calcium carbide reacts with water producing acetylene gas which is highly flammable and an excellent fuel for blowing up pumpkins. It is made of calcium ions and carbide ions. When it comes into contact with water it the carbon atoms react with the hydrogen in the water to produce acetylene gas. The calcium in turn binds with the hydroxide group to produce calcium hydroxide. Acetylene is a hydrocarbon that has applications, in welding, in portable lighting and as fuel for pumpkin explosions, among many others. Watch more Halloween science: https://www.youtube.com/playlist?list=PLbnrZHfNEDZx9huVI51hO9MXmT-dpSmjS The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter #HalloweenScience, #AcetyleneExplosion, #PumpkinExperiment, #Halloween2024, #ScienceExplosions
Published 2017-10-31 · Watch on YouTube ↗
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