Chronos is one of the many Smalltalk-related blogs syndicated on Planet Smalltalk
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Discussion of the Essence# programming language, and related issues and technologies.

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2010-02-26

Quantum measurement precision approaches Heisenberg limit

From PhysOrg.com:

Now, using techniques from machine learning, physicists Alexander Hentschel and Barry Sanders from the University of Calgary have recently shown how to generate measurement procedures that can outperform the best previous strategy in achieving highly precise quantum measurements. The new level of precision approaches the Heisenberg limit, which is an important goal of quantum measurement. Such quantum-enhanced measurements are useful in several areas, such as atomic clocks, gravitational wave detection, and measuring the optical properties of materials.
Full article


Mechanical devices stamped on plastic

From PhysOrg.com:

Microelectromechanical devices -- tiny machines with moving parts -- are everywhere these days: they monitor air pressure in car tires, register the gestures of video game players, and reflect light onto screens in movie theaters. But they're manufactured the same way computer chips are, in facilities that can cost billions of dollars, and their rigidity makes them hard to wrap around curved surfaces.
Full article


2010-02-25

Scientists find an equation for materials innovation

From PhysOrg.com:

Princeton engineers have made a breakthrough in an 80-year-old quandary in quantum physics, paving the way for the development of new materials that could make electronic devices smaller and cars more energy efficient.
Full article


Biology May Not Be so Complex Afterall

From PhysOrg.com:

Centuries ago, scientists began reducing the physics of the universe into a few, key laws described by a handful of parameters. Such simple descriptions have remained elusive for complex biological systems - until now.
Full article


2010-02-23

Laser adds extra dimension to lab-on-chip

From PhysOrg.com:

A European research project has shown how to build optical sensors directly into the structure of labs-on-chips. The breakthrough paves the way for on-the-spot medical diagnostics.
Full article


2010-02-22

Quantum leap for phonon lasers

From PhysOrg.com:

Physicists have taken major step forward in the development of practical phonon lasers, which emit sound in much the same way that optical lasers emit light. The development should lead to new, high-resolution imaging devices and medical applications. Just as optical lasers have been incorporated into countless, ubiquitous devices, a phonon laser is likely to be critical to a host of as yet unimaginable applications.
Full article


2010-02-17

Atom interferometer provides most precise test yet of Einstein's gravitational redshift

From PhysOrg.com:

While airplane and rocket experiments have proved that gravity makes clocks tick more slowly - a central prediction of Albert Einstein's general theory of relativity - a new experiment in an atom interferometer measures this slowdown 10,000 times more accurately than before, and finds it to be exactly what Einstein predicted.
Full article


2010-02-16

Scientists solve ageing puzzle

From PhysOrg.com:

Scientists from the University’s Institute for Ageing and Health have used state-of-the-art laboratory techniques and sophisticated mathematical modelling to help crack the problem of why cells age.
Full article


2010-02-15

'Bubbles' of Broken Symmetry in Quark Soup at RHIC

From PhysOrg.com:

Scientists at the Relativistic Heavy Ion Collider (RHIC), a 2.4-mile-circumference particle accelerator at the U.S. DOE's Brookhaven National Laboratory, report the first hints of profound symmetry transformations in the hot soup of quarks, antiquarks, and gluons produced in RHIC's most energetic collisions. In particular, the new results, reported in the journal Physical Review Letters, suggest that "bubbles" formed within this hot soup may internally disobey the so-called "mirror symmetry" that normally characterizes the interactions of quarks and gluons.
Full articke


2010-02-14

Digging deep into diamonds, physicists advance quantum science and technology

From >PhysOrg.com:

By creating diamond-based nanowire devices, a team at Harvard has taken another step towards making applications based on quantum science and technology possible.
Full article


Cameras of the future: heart researchers create revolutionary photographic technique

From PhysOrg.com:

Scientists at the University of Oxford have developed a revolutionary way of capturing a high-resolution still image alongside very high-speed video - a new technology that is attractive for science, industry and consumer sectors alike.
Full article


2010-02-12

Scientists turn light into electrical current using a golden nanoscale system

From PhysOrg.com:

Material scientists at the Nano/Bio Interface Center of the University of Pennsylvania have demonstrated the transduction of optical radiation to electrical current in a molecular circuit. The system, an array of nano-sized molecules of gold, respond to electromagnetic waves by creating surface plasmons that induce and project electrical current across molecules, similar to that of photovoltaic solar cells.
Full article


2010-02-06

The battery's dead: Scientists invent wafer-thin plastic that can store electricity

From The Daily Mail:

The battery, which has powered our lives for generations, may soon be consigned to the dustbin of history.

British scientists say they have created a plastic that can store and release electricity, revolutionising the way we use phones, drive cars - and even wear clothes.
Full article


2010-02-05

Physicist proposes method to teleport energy

From PhysOrg.com:

Using the same quantum principles that enable the teleportation of information, a new proposal shows how it may be possible to teleport energy. By exploiting the quantum energy fluctuations in entangled particles, physicists may be able to inject energy in one particle, and extract it in another particle located light-years away. The proposal could lead to new developments in energy distribution, as well as a better understanding of the relationship between quantum information and quantum energy.
Full article


Scientist make a leap in quantum computing

From PhysOrg.com:

A major hurdle in the ambitious quest to design and construct a radically new kind of quantum computer has been finding a way to manipulate the single electrons that very likely will constitute the new machines' processing components or "qubits."
Full article


Doctors tout NanoKnife for easy tumor removal

From PhysOrg.com:

A University of Miami doctor recently removed two cancerous tumors from a patient's liver using only three needle-like probes, a computer and a powerful burst of electricity
Full article


IBM Scientists Demonstrate World's Fastest Graphene Transistor

From PhysOrg.com:

In a just-published paper in the magazine Science, IBM researchers demonstrated a radio-frequency graphene transistor with the highest cut-off frequency achieved so far for any graphene device - 100 billion cycles/second (100 GigaHertz).
Full articke


2010-02-04

First germanium laser brings us closer to 'optical computers'

From PhysOrg.com:

MIT researchers have demonstrated the first laser built from germanium that can produce wavelengths of light useful for optical communication. It’s also the first germanium laser to operate at room temperature. Unlike the materials typically used in lasers, germanium is easy to incorporate into existing processes for manufacturing silicon chips. So the result could prove an important step toward computers that move data -- and maybe even perform calculations -- using light instead of electricity. But more fundamentally, the researchers have shown that, contrary to prior belief, a class of materials called indirect-band-gap semiconductors can yield practical lasers.
Full article


'Quantum Logic Clock' Based on Aluminum Ion is Now World's Most Precise Clock

From PhysOrg.com:

Physicists at the National Institute of Standards and Technology have built an enhanced version of an experimental atomic clock based on a single aluminum atom that is now the world’s most precise clock, more than twice as precise as the previous pacesetter based on a mercury atom.
Full article


2010-02-02

Research may lead to new ways to transport and manipulate molecules

From PhysOrg.com:

A group of Marshall University researchers and their colleagues in Japan are conducting research that may lead to new ways to move or position single molecules -- a necessary step if man someday hopes to build molecular machines or other devices capable of working at very small scales.
Full article


Spray-on liquid glass is about to revolutionize almost everything

From PhysOrg.com:

Spray-on liquid glass is transparent, non-toxic, and can protect virtually any surface against almost any damage from hazards such as water, UV radiation, dirt, heat, and bacterial infections. The coating is also flexible and breathable, which makes it suitable for use on an enormous array of products.

Liquid glass spray is perhaps the most important nanotechnology product to emerge to date.
Full article