Thanks to Jane Street for sponsoring this video. Take a look at the opportunities they have here: https://bit.ly/3vpLNVW Excitable Mediums (Media?) are really interesting and you can make one with lighter fluid and a little trough! JK Brickworks video is here: https://www.youtube.com/watch?v=IQhgiL3TqYQ You can download the 3D files here: https://www.thingiverse.com/thing:6586043 Oscar's website it here: http://www.oscarmorris-design.com/ You can buy my books here: https://stevemould.com/books You can support me on Patreon and get access to the exclusive Discord: https://www.patreon.com/stevemould just like these amazing people: Ubiquity Ventures Pavel Dubov Jeremy Cole Jacob Chow Jacob Elterich Tj Steyn Brendan Williams Frank Hereford Alex Hackman Glenn Sugden Lizzy and Jack Lukas Biewald Damien Szerszinski Marshall Fitzpatrick Heather Liu Grant Hay Paul Warelis Nathan Blubaugh Twitter: http://twitter.com/moulds Instagram: https://www.instagram.com/stevemouldscience/ Facebook: https://www.facebook.com/stevemouldscience/ Buy nerdy maths things: http://mathsgear.co.uk/