. . . .. It says on the program that today I am going to reflect on the future. That, I suppose, is a good example of a self-fulfilling prophecy. I am not sure how to do that. None of us really has any privileged way of looking into the future. Our best shot at futuring usually involves some kind of extrapolation of present trends. And yet, even if we can only hunch that the future will have some connection to past and present, it is not easy to discern which of the many present trends ought to be extrapolated. The future has a way of falsifying our best guesses.
To talk of the future, then, is always to talk about the present in an oblique way. How can we understand the present?
. . . . What I would like to do today is to reflect on some thoughts that have been suggested in the work of Gianni Vattimo, a contemporary Italian philosopher. Vattimo (The Transparent Society. Baltimore: Johns Hopkins University Press) describes our situation in the late 20th century as the emergence of what he calls a "society of generalized communication." Our time has been marked by the proliferation of communication media. In our time, Vattimo suggests, everything has become an object of communication.
* Portable Vehicle Navigation System :-
* Windows CE.Net 4.2 operating system
* Touch screen 3.5 TFT LCD display
* 64MB SDRAM 32MB x 2ea
* Pre-loaded USA maps with 2 million POI
* MP3 playback capability
* SD? slot for additional memory expansion
* Start route guidance search
* Turn-by-turn instructions with voice guidance
* GPS status indicator
* Includes 1GB SD? card, DC adapter, built-in speaker and built-in rechargeable battery... - Category: Electronics - Wireless - - Dual - Car Audio & Electronics - GPS Devices - Item: XNAV3550
. The research details how pairs of textile fibers covered with zinc oxide nanowires generate electricity in response to applied mechanical stress. Known as "the piezoelectric effect," the resulting current flow from many fiber pairs woven into a shirt or jacket could allow the wearer's body movement to power a range of portable electronic devices. The fibers could also be woven into curtains, tents, or other structures to capture energy from wind motion, sound vibration or other mechanical energy.
. . . . . The two fibers scrub together just like two bottle brushes with their bristles touching, and the piezoelectric-semiconductor process converts the mechanical motion into electrical energy," said Zhong Lin Wang, a Regents professor in the School of Materials Science and Engineering at the Georgia Institute of Technology. "Many of these devices could be put together to produce higher power output.
The first detailed results of electric power generation with a new technique that could drive implantable medical devices, sensors and portable electronics without the need for bulky batteries or other energy sources.
. . . . .Instead of batteries, electricity for such devices would come, for instance, from muscle contraction or other body movements, according to Zhong Lin Wang and colleagues.
Their report, scheduled for the Aug. 9 issue of the ACS journal Nano Letters, describes experimental observation of electric power production with "nanogenerators" fashioned from a single zinc oxide nanowire and a nanowire belt. In earlier research, Wang's group discovered that zinc oxide nanowires produce electricity via a long-known phenomenon termed the pizoelectric effect. It occurs in certain materials, which change mechanical energy -- from flexing or twisting, for instance -- into electricity.
. . . . The methodology and applications demonstrated in this paper simply open a new field in nanotechnology," the researchers report. In summarizing implications of the new findings, they cite potential harvesting of electricity from mechanical movement energy (such as body movement, muscle stretching and blood pressure), vibration energy (sound waves) and hydraulic energy (blood flow or contraction of blood vessels). The technology might be used in wireless self-powered nanodevices, to charge battery-powered devices and in building larger-scale electric power generators, they add.
To talk of the future, then, is always to talk about the present in an oblique way. How can we understand the present?
. . . . What I would like to do today is to reflect on some thoughts that have been suggested in the work of Gianni Vattimo, a contemporary Italian philosopher. Vattimo (The Transparent Society. Baltimore: Johns Hopkins University Press) describes our situation in the late 20th century as the emergence of what he calls a "society of generalized communication." Our time has been marked by the proliferation of communication media. In our time, Vattimo suggests, everything has become an object of communication.
* Portable Vehicle Navigation System :-
* Windows CE.Net 4.2 operating system
* Touch screen 3.5 TFT LCD display
* 64MB SDRAM 32MB x 2ea
* Pre-loaded USA maps with 2 million POI
* MP3 playback capability
* SD? slot for additional memory expansion
* Start route guidance search
* Turn-by-turn instructions with voice guidance
* GPS status indicator
* Includes 1GB SD? card, DC adapter, built-in speaker and built-in rechargeable battery... - Category: Electronics - Wireless - - Dual - Car Audio & Electronics - GPS Devices - Item: XNAV3550
. The research details how pairs of textile fibers covered with zinc oxide nanowires generate electricity in response to applied mechanical stress. Known as "the piezoelectric effect," the resulting current flow from many fiber pairs woven into a shirt or jacket could allow the wearer's body movement to power a range of portable electronic devices. The fibers could also be woven into curtains, tents, or other structures to capture energy from wind motion, sound vibration or other mechanical energy.
. . . . . The two fibers scrub together just like two bottle brushes with their bristles touching, and the piezoelectric-semiconductor process converts the mechanical motion into electrical energy," said Zhong Lin Wang, a Regents professor in the School of Materials Science and Engineering at the Georgia Institute of Technology. "Many of these devices could be put together to produce higher power output.
The first detailed results of electric power generation with a new technique that could drive implantable medical devices, sensors and portable electronics without the need for bulky batteries or other energy sources.
. . . . .Instead of batteries, electricity for such devices would come, for instance, from muscle contraction or other body movements, according to Zhong Lin Wang and colleagues.
Their report, scheduled for the Aug. 9 issue of the ACS journal Nano Letters, describes experimental observation of electric power production with "nanogenerators" fashioned from a single zinc oxide nanowire and a nanowire belt. In earlier research, Wang's group discovered that zinc oxide nanowires produce electricity via a long-known phenomenon termed the pizoelectric effect. It occurs in certain materials, which change mechanical energy -- from flexing or twisting, for instance -- into electricity.
. . . . The methodology and applications demonstrated in this paper simply open a new field in nanotechnology," the researchers report. In summarizing implications of the new findings, they cite potential harvesting of electricity from mechanical movement energy (such as body movement, muscle stretching and blood pressure), vibration energy (sound waves) and hydraulic energy (blood flow or contraction of blood vessels). The technology might be used in wireless self-powered nanodevices, to charge battery-powered devices and in building larger-scale electric power generators, they add.
KURAI ONDRUM ILLAI MARAI . . . . .
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