The Hidden Reason Your Lighter Sparks Like This - Video

Those tiny sparkles that look like fairy dust don’t come from the flame. Inside every lighter is a small flint made of ferrocerium. When the wheel spins, it scrapes off microscopic metal pieces that heat up instantly from friction. Some ignite right away, but others fall out unburned and can flare up later when they hit a hot surface.
#sciencefacts #everydayscience #lighter #physics #coolfacts