We slice a resistor open to find out why it failed

I was curious to find out why this 20k carbon resistor had failed in our Metrix oscilloscope. So we cut it in two. The result surprised us. Stuff that supports the channel: Patreon:   / curiousmarc   My merch on Fourthwall: https://curiousmarc-shop.fourthwall.com My tools, lab equipment, video gear links on Amazon: https://www.amazon.com/shop/curiousmarc More Amazon links: https://www.curiousmarc.com/amazon-links "Elevator Music" Credit: Crinoline Dreams by Kevin MacLeod Our lovely sponsors PCBWay: fast turn PCBs, https://www.pcbway.com Electro-Rent: https://www.electrorent.com Keysight: test instruments: https://www.keysight.com Samtec: connectors: https://www.samtec.com R&D Microwaves: https://rdmicrowaves.com Get more technical info on the companion site: https://www.curiousmarc.com Contact info: https://www.youtube.com/curiousmarc/a...