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: Dr. Ludovico Cademartiri from Harvard University highlights the intriguing relationship between electricity and flames, revealing that electric fields can dramatically alter the shape of flames, causing them to bend, twist, turn, flicker, and even extinguish, despite this phenomenon being observed for over 200 years, surprisingly little research has been conducted on the subject.

Harvard researcher Ludovico Cademartiri made a notable presentation at the 241st National Meeting and Exposition of the American Chemical Society. His study showcased an intriguing phenomenon where a flame can be manipulated using electric fields.

Cademartiri’s experiment involved using a wand powered by a 600-watt amplifier, comparable to a home stereo system, to extinguish an 18-inch flame. This demonstration highlights the potential of electric fields in controlling flames.

Scientists have been aware of the interaction between electric fields and flames for 200 years. However, previous experiments typically used direct current (DC) instead of alternating current (AC), which Cademartiri’s study utilized to achieve the remarkable results.
The scientists conducted an experiment where they positioned a thin metal wire electrode, connected to a high-voltage power supply, near a controlled methane gas flame. Upon activating the high-voltage source, which sinusoidally raised and lowered the voltage, the electrical field affected the flame. According to Kyle J. M. Bishop, the electrical field essentially “blows out” the flame by separating the hot, burning region from the unburnt fuel, preventing the fuel from continuing to burn. This process effectively extinguishes the flame by disrupting the combustion process.
Harvard researcher Ludovico Cademartiri is optimistic about the potential applications of using electric currents to control flames, although he notes it’s too early to determine its effectiveness on larger fires.

This technology could potentially revolutionize firefighting, with firefighters using ultra-portable power packs and wires instead of heavy hoses and large amounts of water or foam.