Chronos is one of the many Smalltalk-related blogs syndicated on Planet Smalltalk
χρόνος

Discussion of the Essence# programming language, and related issues and technologies.

Blog Timezone: America/Los_Angeles [Winter: -0800 hhmm | Summer: -0700 hhmm] 
Your local time:  

2008-01-31

Engineers demonstrate nanotube wires operating at speed of commercial chips


Engineers demonstrate nanotube wires operating at speed of commercial chips from PhysOrg.com

Integrated circuits, such as the silicon chips inside all modern electronics, are only as good as their wiring, but copper conduits are approaching physical performance limitations as they get thinner.

[Continued]




2008-01-30

DNA is blueprint, contractor and construction worker for new structures


DNA is blueprint, contractor and construction worker for new structures from PhysOrg.com

DNA is the blueprint of all life, giving instruction and function to organisms ranging from simple one-celled bacteria to complex human beings. Now Northwestern University researchers report they have used DNA as the blueprint, contractor and construction worker to build a three-dimensional structure out of gold, a lifeless material.

[Continued]




2008-01-17

Programming Biomolecular Self-Assembly Pathways


Programming Biomolecular Self-Assembly Pathways from PhysOrg.com

Nature knows how to make proteins and nucleic acids (DNA and RNA) dance to assemble and sustain life. Inspired by this proof of principle, researchers at the California Institute of Technology have demonstrated that it is possible to program the pathways by which DNA strands self-assemble and disassemble, and hence to control the dynamic function of the molecules as they traverse these pathways.

[Continued]


"It's about time for the stone age of molecular compilers to begin."


Big Brain Theory: Have Cosmologists Lost Theirs?

The New York Times has an article today (Big Brain Theory: Have Cosmologists Lost Theirs?) that discusses the philosophical issues arising from the latest theories of cosmology:

It could be the weirdest and most embarrassing prediction in the history of cosmology, if not science.

If true, it would mean that you yourself reading this article are more likely to be some momentary fluctuation in a field of matter and energy out in space than a person with a real past born through billions of years of evolution in an orderly star-spangled cosmos. Your memories and the world you think you see around you are illusions.

Full article


2008-01-10

Nanotechnology innovation may revolutionize gene detection in a single cell


Nanotechnology innovation may revolutionize gene detection in a single cell from PhysOrg.com

Scientists at Arizona State University’s Biodesign Institute have developed the world’s first gene detection platform made up entirely from self-assembled DNA nanostructures. The results, appearing in the January 11 issue of the journal Science, could have broad implications for gene chip technology and may also revolutionize the way in which gene expression is analyzed in a single cell.

[Continued]




2008-01-09

An 'attractive' man-machine interface


An 'attractive' man-machine interface from PhysOrg.com

Researchers at Children’s Hospital Boston have developed a new “nanobiotechnology” that enables magnetic control of events at the cellular level. They describe the technology, which could lead to finely-tuned but noninvasive treatments for disease, in the January issue of Nature Nanotechnology (published online January 3).

[Continued]