Combustion engines are likely to persist for quite some time, despite the recent advent of usable, talented electric vehicles. The combustion engine will often persist as a component in plug-in hybrid and range-extended electric vehicles.
Spark plugs have powered internal combustion engines for more than 150 years. Car manufacturers are one step closer to being able to replace this long-standing technology with laser igniters. The laser ingniters will enable cleaner, more efficient, and more economical vehicles.
Firefighters could someday snuff out flames by zapping them with pulses of electric current.
In some respects, firefighting technology has come a long way over the past several decades–we now have flame suppressing foams and powders for instance, as well as new ways of delivering them to the fire. But fundamentally, we’re still fighting fires the old fashioned way: point hose/bucket/ pressurized container and drench. But a team of Harvard researchers envisions a day when firefighters will snuff out flames not with a physical suppressant but with a blast of electric current.