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 ...
The Gentleman's Journal

How to Light a Cigar Like a Seasoned Smoker

A study in patience and precision, revealing how the true connoisseur lights a cigar with grace and understanding.