Wednesday, November 28, 2007
Tuesday, November 06, 2007
Saturday, November 03, 2007
The fear hot-spot is the amygdala, an almond-shaped part of the deep brain. The amygdala, an almond-shaped part of the deep brain. The amygdala is not responsible for all of people's fear response, but it is like the burglar alarm that connects to everything else, said Elizabeth Phelps, Professor of Psychology and Neural Science at New York University - AP
The world's smallest hard drives have already shrunk to the size of a postage stamp, but nanoscale computing may soon make that achievement look elephantine, say some of the stars of information technology.
The latest developments in "spintronix", for example, are poised to go beyond the electrical charge of classic electronics to harness the quantum "spin" state of electrons, writes Albert Fert, co-winner last month of the Nobel Prize for Physics. That could usher in dramatic advances in hard disk storage capacity and retrieval, says Professor Fert.
Professor Fert's new holy grail - called Magnetic Random Access Memory(MRAM) - could essentially collapse the disk drive and computer chip into one, vastly expanding both processing power and storage capacity.
Experimental engineers at IBM, which was the first company to commercialise GMR devices, are already hard at work on this new generation disk-drives, which promise to boost data storage by a factor of a hundred.
But keeping pace with demand depends on a constant stream of technological breakthroughs, and until recently it seemed that certain chokepoints - such as the size of transistors - were finally going to disprove Moore's Law.
"We literally got to the stage where we could not make it any smaller," Intel's chief technology officer Justin Rattner said in an interview with Nature.
But an innovation in materials - a nanoscale changeover from silicon to metals inside transistor "gate" - has given rise to "the dawn of a new era," Rattner said.
Blu-ray is an optical disk format jointly developed by many of the world's leading consumer electronics and media manufacturers including Apple, Dell, Hitachi and a dozen others.
Finally, Charles Lieber and Wei Lu of Harvard University discuss the so-called "bottom up" assembly of nanotubes and nanowires in electronic circuits that could one day possibly replace silicon technology in nanoelectronics - AFP
Stellar-mass black holes have such powerful gravity fields that not even light can escape them. Astronomers estimate their mass by measuring their gas emissions and the gravitational effect on the stars they orbit.
Friday, November 02, 2007
"The two-minute noodle takes 10 minutes. The instant coffee takes too many instants and the 30-minute pizza hardly ever arrives before the 60th minute. And apparently time is money. I can only wonder what our economy would be like if we learnt the art of being on time.
It is inspiring to note that in the airline industry, an "on-time" performance means being lat by a maximum of one hour. It is simply amazing how we manage to be late with such consistency. It is an art form we have mastered and are transferring to future generations.