Why The First Computers Were Made Out Of Light Bulbs

Lightbulbs might be the best idea ever – just not for light. Head to to start your free 30-day trial, and the first 200 people get 20% off an annual premium subscription. A huge thanks to David Lovett for showing me his awesome relay and vacuum tube based computers. Check out his YouTube channel @UsagiElectric ▀▀▀ References: Herring, C., & Nichols, M. H. (1949). Thermionic emission. Reviews of modern physics, 21(2), 185. – Goldstine, H. H., & Goldstine, A. (1946). The electronic numerical integrator and computer (eniac). Mathematical Tables and Other Aids to Computation, 2(15), 97-110. – Shannon, C. E. (1938). A symbolic analysis of relay and switching circuits. Electrical Engineering, 57(12), 713-723. – Boole, G. (1847). The mathematical analysis of logic. Philosophical Library. – The world’s first general purpose computer turns 75 – Dylla, H. F., & Corneliussen, S. T. (2005). John Ambrose Fleming and the beginning of electronics. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 23(4), 1244-1251. – Stibitz, G. R. (1980). Early computers. In A History of Computing in the Twentieth Century (pp. 479-483). Academic Press. ENIAC’s Hydrogen Bomb Calculations – ▀▀▀ Special thanks to our Patreon supporters: Emil Abu Milad, Tj Steyn, meg noah, Bernard McGee, KeyWestr, Amadeo Bee, TTST, Balkrishna Heroor, John H. Austin, Jr., john kiehl, Anton Ragin, Benedikt Heinen, Diffbot, Gnare, Dave Kircher, Burt Humburg, Blake Byers, Evgeny Skvortsov, Meekay, Bill Linder, Paul Peijzel, Josh Hibschman, Mac Malkawi, Juan Benet, Ubiquity Ventures, Richard Sundvall, Lee Redden, Stephen Wilcox, Marinus Kuivenhoven, Michael Krugman, Cy ‘kkm’ K’Nelson, Sam Lutfi. ▀▀▀ Written by Petr Lebedev, Derek Muller and Kovi Rose Edited by Trenton Oliver Animated by Mike Radjabov, Ivy Tello and Fabio Albertelli Filmed by Derek Muller & Raquel Nuno Additional video/photos supplied by Getty Images & Pond5 Music from Epidemic Sound Produced by Derek Muller, Petr Lebedev, & Emily Zhang Thumbnail by Ignat Berbeci