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| Engineering articles |
Writing at the nanoscale
At the U.S. Department of Energy's Brookhaven National Laboratory, scientists have developed a new chemical "writing" technique that can create lines of "ink" only a few tens of nanometers, or billionths of a meter, in width.
Supersizing the supercomputers
Supercomputers excel at highly calculation-intensive tasks, such as molecular modeling and large-scale simulations, and have enabled significant scientific breakthroughs. Yet supercomputers themselves are subject to technological advancements and redesigns that allow them to keep pace with the science they support.
Scientists develop 'clever' artificial hand
Scientists have developed a new ultra-light limb that can mimic the movement in a real hand better than any currently available.
Shoe leather as a renewable resource
If you already have a little spring in your step, a team of biologists at the University of Pennsylvania would like to them to good use by adding a few more springs in the form of a power-generating backpack.
New microchip design could be the key to expanding mobile phone memory
Mobile phones could one day have the memory capacity of a desktop computer thanks to a microchip that mimics the functioning of the brain, scientists report in the journal Science.
Novel material may demonstrate long-south 'liquid' magnetic state
A novel material that may demonstrate a highly unusual "liquid" magnetic state at extremely low temperatures has been discovered by a team of Japanese and U.S. researchers.
Grammar lost translation machine in researchers fix will
The makers of a University of Southern California computer translation system consistently rated among the world's best are teaching their software something new: English grammar.
New insight into the nature of nanodiamond
The newest promising material for advanced technology applications is diamond nanotubes, and research at the U.S. Department of Energy's Argonne National Laboratory is giving new insight into the nature of nanodiamond.
Magnetic diamonds on the nanoscale
Diamonds have always been alluring, but now a team of scientists has made them truly magnetic -- on the nanoscale.
The ESRF tests the hardest and least compressive material in the world
Nanorods of many materials are proving very successful, and their properties often exceed that of nanotubes, making them excellent candidates for industrial applications. Theoretical calculations predicted that diamond nanorods too would have properties superior to that of carbon nanotubes. But, so far, nobody had been able to actually synthesize diamond nanorods. This is no longer true. A team from the Bayerisches Geoinstitut (Universität Bayreuth) has just reported the synthesis of these aggregated diamond nanorods (ADNR) and their remarkable properties, after having measured them at the ESRF.
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Study of faulty fingerprints debunks forensic science 'zero error' claim
While forensic scientists have long claimed fingerprint evidence is infallible, the widely publicized error that landed an innocent American behind bars as a suspect in the Madrid train bombing alerted the nation to the potential flaws in the system. Now, UC Irvine criminologist Simon Cole has shown that not only do errors occur, but as many as a thousand incorrect fingerprint "matches" could be made each year in the U.S. This is in spite of safeguards intended to prevent errors.
Nano-oscillators synchronize their behavior
Like the flashing of fireflies and ticking of pendulum clocks, the signals emitted by multiple nanoscale oscillators can naturally synchronize under certain conditions, greatly amplifying their output power and stabilizing their signal pattern, according to scientists at the Commerce Department's National Institute of Standards and Technology (NIST).
Researchers build world's smallest mobile robot
In a world where "supersize" has entered the lexicon, there are some things getting smaller, like cell phones and laptops. Dartmouth researchers have contributed to the miniaturizing trend by creating the world's smallest untethered, controllable robot.
Researchers map city by cellphone
Can you see me now? Researchers at MIT may not be able to hear your cellphone call, but they have found a way to see it. They mapped a city in real time by tracking tens of thousands of people traveling about carrying cellphones.
Helping out a high-temperature superconductor
Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have discovered a way to significantly increase the amount of electric current carried by a high-temperature superconductor, a material that conducts electricity with no resistance. This is an important step in the drive to create superconductor-based electric and power-delivery devices, such as power transmission lines, motors, and generators.
Researchers create DNA-based sensors for nano-tongues ad nano-noses
Nano-sized carbon tubes coated with strands of DNA can create tiny sensors with abilities to detect odors and tastes, according to researchers at the University of Pennsylvania and Monell Chemical Sciences Center.
'Quasicrystal' metal computer model could aid ultra-low-friction machine parts
Duke University materials scientists have developed a computer model of how a "quasicrystal" metallic alloy interacts with a gas at various temperatures and pressures. Their advance could contribute to wider applications of quasicrystals for extremely low-friction machine parts, such as ball bearings and sliding parts.
World's smallest universal material testing system
The design, development and manufacturing of revolutionary products such as the automobile, airplane and computer owe a great deal of their success to the large-scale material testing systems (MTS) that have provided engineers and designers with a fundamental understanding of the mechanical behavior of various materials and structures.
NIST improves accuracy of 'watt balance' method for defining the kilogram
A leading experimental method for defining the kilogram in terms of properties of nature is now more accurate than ever, scientists at the Commerce Department's National Institute of Standards and Technology (NIST) reported. The advance may move the scientific community closer to redefining the kilogram, the only one of the seven basic units of the international measurement system still defined by a physical artifact.
The mechanics of foot travel
Despite having the bones and muscles to perform a variety of gaits, human beings have developed an overwhelming preference for just two: walking and running. Now, computer analysis that allows simulation of infinite two-legged locomotions has shown our favored modes of bi-pedal travel use the least amount of energy.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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