Smartphone apps use sound waves to blow out candles

Many technological innovations have become a permanent part of our daily routines in recent years. Smartphones once used primarily for calling and texting, are now versatile tools that continually surprise us with their capabilities. One of the more unusual functions modern apps offer is the ability to blow out a candle! Although it sounds like science fiction, apps using sound waves or other advanced technologies allow these minor experiments. How exactly does this innovation work, and which apps are worth trying? Read on to find out!

The process involves generating a specific sound from the speaker, which moves the air. Despite the small size of a phone's speaker, its strength is sufficient to move the air enough to extinguish the candle flame. You simply need to bring the speaker about half an inch from the wick to make this trick possible, and it will certainly make gatherings with friends more exciting.

The YouTube channel The Action Lab explains why this candle-blowing method is effective. The key factor is the speaker's different air movement in the "vacuuming" process and its subsequent "pushing out." During the second phase, the air is directed more precisely, which accelerates its movement.

You don't necessarily need an app called "candle blower." A program generating a sine wave works effectively, and an appropriate sound saved on the phone is also sufficient. Apps that allow manual frequency adjustment can even be more effective, allowing you to tailor the tone to the situation.

These apps are available on the Play Store and App Store. To find them, use the English search phrase "blow candle."