he world’s smallest thermometer consisting of a single carbon nanotube filled with liquid gallium has been created by researchers in Japan. The instrument is so sensitive that it can measure the temperature change that occur when small groups of molecules react with each other.The nanothermometer is 10 micrometers long and has a diameter of only 75 nanometers. It length is about one tenth the width of a human hair.… read more
The biotech industry is under siege. It is faced with campaigns against cloning and GM crops — while trying to tackle the potential disaster of germ warfare. Undaunted, the European Commission, which wants to make Europe a front-runner in this fast-moving sector, has just released a policy paper, Life Sciences and Biotechnology – A Strategy for Europe. The goal is an all-encompassing biotechnology framework, a hugely ambitious project that will… read more
Are intelligent machines transforming life as we know it? Or is A.I. yet another overhyped, self-serving fantasy by deluded scientists and technocrats talking mostly to one another, foisting their ill-conceived, poorly-engineered creations on an unsuspecting public?
Arguing A.I.: The Battle for Twenty-first Century Science by Sam Williams (published by atRandom.com) traces the history of A.I. and talks to several of the principals guiding the A.I. debate today, like Ray Kurzweil,… read more
Robots are being let loose in a colony of machines in an attempt to find out whether they can learn from their experiences.
The scientists behind this unusual experiment describe it as an evolutionary arms race for robots, with the machines struggling to collect energy.
The Living Robots experiment will be open to the public from 27 March at the Magna science adventure centre in Rotherham in England.… read more
The trajectory of desktop PC performance increases of the last two years will not slow in the near future, but actually accelerate, based on an expected announcement by Intel Corp. at the International Solid State Circuits Conference. Intel will present a paper today detailing a portion of a microprocessor chip that has performed at up to 10 gigahertz at room temperature —- the fastest calculating speed yet reported… read more
A group of biologists believe a Western lifestyle now protects humanity from the forces that used to shape Homo sapiens — virtually everybody’s genes are making it to the next generation, not only those who are best adapted to their environments.
In addition, human populations are now being constantly mixed, again producing a blending that blocks evolutionary change.
Peter Ward, of the University of Washington, in his book, Future… read more
A chip that will automatically create hundreds of cloned embryos at a time is being developed by a Californian biotech company, New Scientist has learned.If it lives up to its promise, the chip should help make cloning cheap and easy enough for companies to mass-produce identical copies of the best milk or meat producing animals for farmers. It might even be used for cloning human embryos.
The chip automates… read more
US scientists claim to have grown functional kidneys using stem cells taken from cloned cow embryos.Robert Lanza of biotech company Advanced Cell Technology told New Scientist that his team, working in collaboration with a group at Harvard University, coaxed the stem cells into becoming kidney cells, and then “grew” them on a kidney-shaped scaffold.
The two-inch-long mini-kidneys were then transplanted back into genetically identical cows, where they started making… read more
Self-assembling circuits using carbon nanotube molecules could replace silicon chips.
James Heath, of the University of California and colleagues have demonstrated that if one or both of two wires crossed at right angles are semiconducting, the junction can act like an electronic device such as a diode and each device can be switched on or off without affecting the others.
This proof of principle raises hopes that a nanotube… read more
A computer game played by thousands of enthusiasts over the Internet has spawned an economy with a per-capita income comparable to that of a small country, according to new research by a US economist.
The online fantasy game EverQuest lets players create and control characters–or avatars–within a fantasy world called Norrath.
Characters gain skills and possessions that they can then trade with other players using the game’s currency of… read more
Using frozen light, physicists hope to mimic a black hole on a desktop. The miniature physics phenomena could show hidden shades of space.
The simulation could create a mock version of elusive ‘Hawking radiation.’ These weak electromagnetic waves are thought to occur when light reaches the event horizon, where dimensions as we know them disappear and light and time appear to stand still.
Imitation event horizons may help us… read more
Brain researchers have observed a dual control system in the hippocampus that contributes to memory and ensures that the brain does not “crash,” as in an epileptic seizure.
The researchers studied the electrical signals that hippocampus nerve cells use to communicate. They found that interneurons inhibit pyramidal cells in two ways: some interneurons receive the same signals as pyramidal cells, so they can control what information the pyramidal cells receive.… read more
A computer chip implanted near the eye’s retina is may offer some restored vision to people blinded by eye diseases such as retinitis pigmentosa and age-related degeneration of the eye.
To capture images, an external camera mounted in an eyeglass frame captures the image and converts it into an electrical signal that is then electronically transmitted to a flexible silicon biochip surgically attached near the retina. The chip electronically stimulates… read more
Stanford scientists have synthesized a molecule of DNA that is capable of shutting off specific genes in living bacteria. Dubbed the “nanocircle,” the new nanometer-size molecule might one day give researchers the ability to target harmful genes that cause cancer and other diseases in humans.
The technique — known as “rolling circle amplification” — is now one of the hottest fields in biotechnology because it offers the potential to produce… read more