Gas grill igniter: incorporates piezoelectricity to create the spark

摘要

Summer is coming. You're ready to introduce some new barbecue recipes to your friends and the nagging question you've been pondering all winter is about to be answered: Just how does that spark igniter on your gas grill work? The igniter is the button you push to cause a spark that ignites the gas. Electricity does the job, but where does the electricity come from? Stumped? Well, the answer you've been waiting for is pressure.