Get 82% off Private Internet Access and 3 extra months free: https://piavpn.com/stevemould Spintronics has mechanical resistors, inductors, transistors, diodes batteries and capacitors. When you connect them together with chains, they give a really good intuition for how circuits works. Spintronics: https://upperstory.com/spintronics/ Veritasium's videos: https://www.youtube.com/watch?v=bHIhgxav9LY https://www.youtube.com/watch?v=oI_X2cMHNe0 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: Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Pavel Dubov Lizzy and Jack Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski 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/