Today, we'll explore the materials electrical engineers work with. We'll look at high-conductors, insulators, and how low-conductivity conductors can be used to generate light and heat. Crash Course Engineering is produced in association with PBS Digital Studios:    • All PBS Digital Studios videos   PBS Space Time: https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g *** RESOURCES: https://indianapublicmedia.org/amomentofscience/ben-franklin-furry-situation/ https://www-spof.gsfc.nasa.gov/Education/woppos.html https://www.electrical4u.com/high-resistivity-or-low-conductivity-conducting-material/ https://www.performancewire.com/insulated-wire-protection/ https://sciencing.com/printed-circuit-boards-used-5031475.html https://www.livescience.com/38997-facts-about-tungsten.html https://www.celticgold.eu/en/gold-university/fake-gold-bars.html http://megaanswers.com/why-does-the-filament-of-a-bulb-burn-out-when-exposed-to-atmosphere/ https://www.radiologymasterclass.co.uk/tutorials/physics/x-ray_physics_production#top_1st_img *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Kenneth F Penttinen, Trevin Beattie, Satya Ridhima Parvathaneni, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, D.A. Noe, Shawn Arnold, Malcolm Callis, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Mayumi Maeda, Kathy & Tim Philip, Jirat, Ian Dundore -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com/ Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: null