Several milliliters of ferrofluid exhibiting acute normal-field instability due to the magnetic field created by a neodymium iron boron magnet beneath the cup The goal of this project was to create a visually appealing and mathematically interesting art installation using a special kind of magnetically sensitive fluid called a ferrofluid. The pro
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ject was inspired by the work of two Japanese researchers-turned-artists, Sachiko Kodama and Yasushi Miyajima, whose most recent creation, Morpho Towers, uses the magnetic properties of ferrofluids to visualize complex waveforms in three dimensions. Wanting to replicate the same effect, but include an additional level of control, we designed a housing that contained 19 individually addressable solenoids arranged in a symmetrical heaxgonal array, and mounted small neodymium-iron-boride magnets to the shafts of each electromechanical element. Then, with the help of a few specialized circuits and some custom-written software running on the NU32 PIC, it was our hope to bring all 19 elements under computerized control via a graphical user interface running on a laboratory PC. Through this interface, a user, or another piece of software, could actuate the solenoids up and down, altering the shape of the fluid`s surface by changing the strength of the magnetic field normal to it. A video of the fluid in action can be seen here. Like all large projects, our art display underwent several stages of design evolution before settling into its final form. Each stage was marked by a specific physical design, with each design possessing its own advantages and disadvantages. As time went on, the designs changed to accommodate an update in our direction, to take advantage of newly acquired supplies or materials, or to overcome unanticipated...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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