To get started for free, visit https://brilliant.org/electroboom and the first 200 of you will get 20% off Brilliant's annual premium subscription. Here I turn a lamp on through the longest loop at the speed of light!!! My new MERCH: null Thanks for your support @ http://patreon.com/electroboom Post your submissions to: http://reddit.com/r/electroboom My Facebook: http://www.facebook.com/ElectroBOOM My Twitter: http://twitter.com/electroboomguy My other articles: https://www.electroboom.com/ Thanks to http://CircuitSpecialists.com/ and http://keysight.com/ for proving my essential lab tools and giveaways. Checkout my Amazon picks (my affiliate link): https://www.amazon.com/shop/Electroboom Below are my Super Patrons with support to the extreme! Nicholas Moller at https://www.usbmemorydirect.com/ Sam Lutfi Peter Membrey J4yC33 My sponsors and top patrons: http://www.electroboom.com/?page_id=727 Enter your school for tools: https://goo.gl/forms/VAgRre8rLVvA1cEi2 Reference videos on this subject: Veritasium’s 1st Video: https://www.youtube.com/watch?v=bHIhgxav9LY My 1st Analysis Video: https://www.youtube.com/watch?v=iph500cPK28 Veritasium’s 2nd Video: https://www.youtube.com/watch?v=oI_X2cMHNe0 My 2nd Analysis Video: https://www.youtube.com/watch?v=O-WCZ8PkrK0 By: Mehdi Sadaghdar 0:00 Intro to the Test 2:31 The Theory Behind the Wire 3:12 Turning an LED on Through a Long Loop 10:22 The TEST, See the Electric Wave Reflections Here you will see how a transmission line actually works, the electric fields that travel at the speed of light through the loop, reflections of waves from the ends of the line and how impedance matching, or not matching, changes the reflection of the waves