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Helium balloons are known for pulling things up, but they could be a great way to drag defunct satellites down to Earth, a team of engineers says.

Personal listening devices like iPods have become increasingly popular among young -- and not-so-young -- people in recent years. But music played through headphones too loud or too long might pose a significant risk to hearing, according to a 24-year study of adolescent girls.

Next-generation high-density storage devices may keep more than 70 times the contents of the entire US Library of Congress on a single disc -- but only if that data can be written quickly enough. In the Journal of Applied Physics, researchers in China have demonstrated a way to record onto ferromagnetic films thirty times faster than today's technologies.

Last night, Google announced that it has agreed to invest heavily in a proposed $5 billion, 350-mile power transmission backbone that would provide infrastructure for future offshore wind projects along the mid-Atlantic coast. But even with the backing of one of the world's mightiest tech companies, various financial investment firms, and many important officials in government, the transmission line is going to be something of a technological trick.

A team of planet hunters from the University of California (UC) Santa Cruz and the Carnegie Institution has announced the discovery of a planet, Gliese 581g,

Much like a Facebook profile, " The Social Network " is made more appealing through some artful lies, well-chosen omissions and careful shading.

If NASA ever gets a clear directive for interplanetary exploration, a new Hundred-Year Starship could be their version of the Mayflower. And like the first pilgrims, Martian explorers might set sail with the knowledge they would never return home.

Deep in the basement of a dusty university library in Edinburgh lies a small black box, roughly the size of two cigarette packets side by side, that churns out random numbers in an endless stream.   At first glance it is an unremarkable piece of equipment.

Scientists with the Lawrence Berkeley National Laboratory (Berkeley Lab) have designed an electrical link to living cells engineered to shuttle electrons across a cell's membrane to an external acceptor along a well-defined path. This direct channel could yield cells that can read and respond to electronic signals, electronics capable of self-replication and repair, or efficiently transfer sunlight into electricity.

Scientists have developed a new type of holographic telepresence that allows the projection of a three-dimensional, moving image without the need for special eyewear such as 3-D glasses or other auxiliary devices. The technology is likely to take applications ranging from telemedicine, advertising, 

Professor Andre Geim, who along with his colleague Professor Kostya Novoselov won the 2010 Nobel Prize for graphene - the world's thinnest material, has now modified it to make fluorographene - a one-molecule-thick material chemically similar to Teflon. Fluorographene is fully-fluorinated graphene and is basically a two-dimensional version of Teflon, showing similar properties including chemical inertness and thermal stability.

ScienceDaily (Dec. 3, 2010) - Africa can feed itself. And it can make the transition from hungry importer to self-sufficiency in a single generation.

Researchers are creating a system that harvests heat from an engine's exhaust to generate electricity, reducing a car's fuel consumption.

Out of the background thermal equilibrium, a fluctuation randomly appears that collects some degrees of freedom into the form of a conscious brain, with just enough sensory apparatus to look around and say "Hey! I exist!", before dissolving back into

He has an agreeably caustic and aggressive approach to outdated and erroneous ideas about the history of science. The book is a polemical essay, rather than a history, and welcome as such.

The Future of Science: Building a Better Collective Memory By Michael A. Nielsen

For a period of about a decade, extending from my late undergraduate years to my early postdoctoral years, it would be fair to say that I was obsessed with Ockham's razor. I was convinced that it was the key to understanding how we acquire knowledge about the world. I no longer believe in Ockham's razor.

Japanese researchers said Wednesday they had used stem cells to restore partial mobility in a small monkey that had been paralysed from the neck down by a spinal injury.

Stanford develops Biotic Pinball, POND PONG, and a soccer game called Ciliaball, in which a player's actions influence the behavior of living microorganisms in real time. Read this blog post by Elizabeth Armstrong Moore on Health Tech.

A study appearing Feb. 10 in Science Express calculates the world's total technological capacity to store, communicate and compute information, part of a Special Online Collection: Dealing with Data. The study by the USC Annenberg School for Communication & Journalism estimates that in 2007, humankind was able to store 2.9 × 1020 optimally compressed bytes, communicate almost 2 × 1021 bytes, and carry out 6.4 × 1018 instructions per second on general-purpose computers. General-purpose computing capacity grew at an annual rate of 58%. The world's capacity for bidirectional telecommunication grew at 28% per year, closely followed by the increase in globally stored information (23%). Humankind's capacity for unidirectional information diffusion through broadcasting channels has experienced comparatively modest annual growth (6%). Telecommunication has been dominated by digital technologies since 1990 (99.9% in digital format in 2007), and the majority of our technological memory has been in digital format since the early 2000s (94% digital in 2007).