Nowadays we have Bluetooth speakers for all tastes, but probably no other is as peculiar as this one. It is a device that, in addition to converting electrical impulses into sounds, contains a liquid that dances to the rhythm of music.
We do not know how good this speaker sounds, because it is not for sale, but we do not doubt that it is a very curious creation. The credit is dakd youngan engineer and artist who, among other things, combined the paramagnetic properties of ferrofluids with sound.
An unusual speaker
Jung used a 3D printer to create the case and white paint to give his speaker a smooth, futuristic finish. Inside he placed the components that bring it to life: cables, three speakers, an amplifier, a Bluetooth module, and an Arduino Nano board.
On the front of the casing he placed a small glass container illuminated with LED lights. And inside he put a drop of ferrofluid and clear liquid. So… how did he get the liquid to dance? The trick is in an electromagnet hidden behind the container.
The electromagnet is connected to the Arduino Nano board, which causes its power to change according to the music that is playing. In this way, when the music begins to play, the ferrofluid, which has paramagnetic properties, begins to move as if it were alive.
In addition, some knobs allow you to control the volume and modify the audio frequency. This gives the possibility of customize ferrofluid movement. For example, that it behaves in a certain way with serious sounds and in another way with high-pitched sounds.
What is the origin of ferrofluids?
Ferrofluids do not exist as such in nature, so they have to be synthesized. Its origin dates back to the 18th century, when Gowin Knight prepared a fluid made up of iron particles in water. However, it was in 1963 that Stephen Papell made the first stable synthesis.
And what was Papell’s goal? The studies of this scientist, as explained by NASAThey focused on finding a way to pumping fuel to cows in an impregnable environment. Although over time it also found another use: living inside a Bluetooth speaker.
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