Acoustic Cloaking Device & Metamaterials

The acoustic cloaking device works in all three dimensions, no matter which direction the sound is coming from or where the observer is located. By placing this cloak around an object, the sound waves behave like there is nothing more than a flat surface in their path. 

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Turning to Nature: METAMATERIALS

To achieve this new trick, Cummer and his colleagues turned to the developing field of metamaterialsthe combination of natural materials in repeating patterns to achieve unnatural properties. In the case of the new acoustic cloak, the materials manipulating the behavior of sound waves are simply plastic and air. Once constructed, the device looks like several plastic plates with a repeating pattern of holes poked through them stacked on top of one another to form a sort of pyramid.

To give the illusion that it isn’t there, the cloak must alter the waves’ trajectory to match what they would look like had they had reflected off a flat surface. Because the sound is not reaching the surface beneath, it is traveling a shorter distance and its speed must be slowed to compensate.

Acoustic cloaking device hides objects from sound — ScienceDaily.

Protected moments within the Park: Precedents of style, aesthetic and interaction

Shadow Pavilion Informed by Biomimcry

 Ply Architecture – eVolo | Architecture Magazine.

BIO Coral Reef Pavilion- Interactive WIFI spy Pavilion

As a sophisticated biological network, coral reefs are natural spies. Reefs consist of hundreds (or even hundreds of thousands) of polyps, which gather information about their environments and use it to shape their growth patterns and, consequently, the form of the reef itself. In a way, their structures are a product of their surveillance of the environment.

San Francisco–based BIOS Design Collective wanted to render Silicon Valley’s invisible web of data—from overlapping wi-fi signals to the behavior trackers buried in web pages—as a physical expression they chose the coral reef as their ruling metaphor. This LED Pavilion “Spies” On Its Inhabitants – Architizer.

 

Russian Pavilion, Venice Architecture Biennale

Art & Design: The Russian Pavilion at the Venice Architecture Biennale | Blog | Stylesight.

Fabricated Pavilion, Stuttgart

Researching New Tectonic Possibilities In Architecture / Robotically Fabricated Pavilion In Stuttgart – eVolo | Architecture Magazine.

An interesting project using woven fibres and robotics to determine the structure and fabrication, I imagine this as a temporary woven structure over a protected space within the park where the fibres are able to deflect invasive radio waves, wifi signals and communications.

The pavilion is entirely robotically fabricated, from glass and carbonfiber composites and it investigates the eventual co-relation between bio-mimetic design strategies and new processes of robotic production. The new composite construction paradigm in architecture is rooted in morphological principles of arthropods’ exoskeletons. Typically, exoskeletons are a shell type structure that supports and protects an interior space such as an animals body. In the case of the park as a sanctuary, the exoskeltal structure would act as a protective device against invasive communications.

Sou Foujimoto, Serperntine Pavilion

Nature Listening Device.

Hacking nature as an eavesdropping device.

Potential to take the protected space in the park back to my initial exploration with foam as space for moments of contemplation.

Methods of Detection: Electro Active Polymers

Each has a size of 1 cm by 1 cm, and it can rise up by 3 mm when 3 Volts are supplied. The movement of these sheets is controlled by a processor that is connected with the iPhone through the phone’s connector. These EAP sheets only take a minimal amount of energy from the extra battery.

Essentially a visual and movement based alert system which could be adapted to detect invasive signals and let the user know when they are being monitored. This is a similar line of detection to the Electromagentic Field detector I created last year. My task now, is how do I scale this up into the ‘resistance’ archtiecture?

Faceted panel facade used to respond and react to invasive signals

Faceted panel facade used to respond and react to invasive signals

See RFID and Electrmagneticfield reader here:

RFID reader