The so-called "Crowd Farm," as envisioned by James Graham and Thaddeus Jusczyk, would turn the mechanical energy of people walking or jumping into a source of electricity. Their proposal took first place in the Japan-based Holcim Foundation's Sustainable Construction competition this year.
A Crowd Farm in Boston's South Station railway terminal would work like this: A responsive sub-flooring system made up of blocks that depress slightly under the force of human steps would be installed beneath the station's main lobby. The slippage of the blocks against one another as people walked would generate power through the principle of the dynamo, a device that converts the energy of motion into that of an electric current.The electric current generated by the Crowd Farm could then be used for educational purposes, such as lighting up a sign about energy.
"We want people to understand the direct relationship between their movement and the energy produced," says Juscyzk.
The Crowd Farm is not intended for home use. According to Graham and Jusczy, a single human step can only power two 60W light bulbs for one flickering second. But get a crowd in motion, multiply that single step by 28,527 steps, for example, and the result is enough energy to power a moving train for one second.And while the farm is an urban vision, the dynamo-floor principle can also be applied to capturing energy at places like rock concerts, too. "Greater movement of people could make the music louder,"
suggests Jurcyzk.The students' test case, displayed at the Venice Biennale and in a train station in Torino, Italy, was a prototype stool that exploits the passive act of sitting to generate power. The weight of the body on the seat causes a flywheel to spin, which powers a dynamo that, in turn, lights four LEDs.
"People tended to be delighted by sitting on the stool and would get up and down repeatedly," recalls Graham.
Other people have developed piezo-electric (mechanical-to-electrical) surfaces in the past, but the Crowd Farm has the potential to redefine urban space by adding a sense of fluidity and encouraging people to activate spaces with their movement.
"Our intention was to think of it not as a high-tech mat that would be laid down somewhere, but to really integrate it into a new sort of building system," Graham says.The Crowd Farm floor is composed of standard parts that are easily replicated but it is expensive to produce at this stage, they said.
"Only through experimentation - which can be expensive - do technologies become practical," Graham says.
Graham and Juscyzk rely on bicycles, rather than trains or buses, for their commute to MIT. But, both students were impressed enough by recent experiences in large crowds - for Graham, the 2003 New York City blackout; for Juscyzk, Boston's World Cup celebration in City Hall Plaza - to start work on the Farm.
The students were inspired as well by an "ingenious little device by Thomas Edison. When visitors came to his house, they passed through a turnstile that pumped water into his holding tank," says Graham. In addition, they were guided by their advisor, Associate Professor J. Meejin Yoon, who helped them take their proposal from the power-stool to the Crowd Farm.
Patti Richards | MIT News Office
Modular storage tank for tight spaces
16.03.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
Smart homes will “LISTEN” to your voice
17.01.2017 | EML European Media Laboratory GmbH
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy