Engineeringness on MSN

How LEDs Work: The Tiny Lights Inside Everything You Use

This video explains how LEDs (Light Emitting Diodes) work and why they’ve become one of the most important components in ...
Amazon S3 on MSN

Simple Power Outage Lighting Hack for Every Household

The Urban Prepper shares a lighting hack for power outages at home. Secret Service finds 17 'skimming' devices in tour of San ...