February 2012
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Messing with our planet

IN 1975 scientists expert in a new and potentially world-changing technology, genetic engineering, gathered at Asilomar, on the Monterey peninsula in California, to ponder the ethics and safety of the course they were embarking on. The year before, they had imposed on themselves a voluntary moratorium on experiments which involved the transfer of genes from [...]

Coming up empty

THE renewable-fuel standard released in February by America’s Environmental Protection Agency (EPA) paints an ambitious picture of biofuels’ future. It wants the amount of the stuff used as transport fuel to climb from 13 billion gallons (49 billion litres) in 2010 to 36 billion gallons in 2022, requiring by far the largest part of that [...]

Single Molecule Transistor

MANHASSET, NY — Researchers from Yale University and the Gwangju Institute of Science and Technology in South Korea have successfully created a transistor made from a single molecule. The researchers showed that a benzene molecule attached to gold contacts could behave just like a silicon transistor.

Rubber from Dandelions

The tyres of the future may be made from dandelions. OTHER than being an ingredient of the more recherché sorts of salad, herbal tea or wine, dandelions are pretty useless plants. Or, at least, they were. But one species, a Russian variety called Taraxacum kok-saghyz (TKS), may yet make the big time. It produces molecules [...]

Native Flu Fighting Proteins

A team led by Harvard researchers has discovered a family of naturally occurring proteins in human cells that protect against influenza and other illnesses—a finding that may lead to methods to speed up vaccine production and to new flu prevention drugs for humans.

Wireless Electricity

Marin Soljacic couldn’t sleep. The problem was his wife’s Nokia cell phone. The tyrannical device beeped on the bedside table when it needed to be plugged in. It could not be disabled.

News vs Newspaper

How a new communications technology disrupted America’s newspaper industry — in 1845. CHANGE is in the air. A new communications technology threatens a dramatic upheaval in America’s newspaper industry, overturning the status quo and disrupting the business model that has served the industry for years. This “great revolution”, warns one editor, will mean that some [...]

Foundations of Economic Analysis

Paul A. Samuelson, the first American Nobel laureate in economics and the foremost academic economist of the 20th century, died Sunday at his home in Belmont, Mass. He was 94.

Birds and Aviation Fuel Efficiency

Copying Birds may save aircraft fuel.

Source: The Economist. Photo: Corbis

Diatoms

PORTLAND, Ore. — Diatoms–single-celled phytoplankton (algae)–are one of the most plentiful life forms on Earth, accounting for 20 percent of the carbon dioxide removed from the environment each year. The mechanism they use–encasing themselves in patterned silicon dioxide shells as they fall to the bottom of oceans and lakes worldwide–removes as much carbon dioxide from [...]

Car fuel from water

PORTLAND, Ore. — The hydrogen economy is getting a shot in the arm from a start-up that says its nanoparticle coatings could make hydrogen easy to produce at home from distilled water, and ultimately bring the cost of hydrogen fuel cells in line with that of fossil fuels. QuantumSphere Inc. says it has perfected the [...]

Molecular Machines

A tiny chemical “brain” which could one day act as a remote control for swarms of nano-machines has been invented.  The molecular device – just two billionths of a metre across – was able to control eight of the microscopic machines simultaneously in a test.

Bismuth Antimony Telluride

PORTLAND, Ore. — Thermoelectric coolers and power generators were handed a 40-percent boost in performance recently by a nanotechnological reconstruction of a classic bulk material. The technique is suitable for mass production, according to its inventors at Boston College and the Massachusetts Institute of Technology (MIT).

Road Coloring Problem

After 38 years, Israeli solves math code.  A mathematical puzzle that baffled the top minds in the esoteric field of symbolic dynamics for nearly four decades has been cracked — by a 63-year-old immigrant who once had to work as a security guard.

Nanodots

Nanodots could yield denser memories, ceramic engine

PORTLAND, Ore. — Researchers at North Carolina State University said they were able to read and write bits at room temperature using magnetic nanodots that delivered 1 terabit of memory per centimeter2.

FinFETs

YORKTOWN HEIGHTS, N.Y. — Gaze into the electron microscope display in Frances Ross’s laboratory here and it is possible to persuade yourself that Dr. Ross, a 21st-century materials scientist, is actually a farmer in some Lilliputian silicon world.

Doomsday Seed Vault

UN chief Ban Ki-moon visited Wednesday a vault carved into the Arctic permafrost, filled with samples of the world’s most important seeds in case food crops are wiped out by a catastrophe.

Telescope turning 400

Celebrating 400th anniversary of Galileo’s Telescope.

http://www.economist.com/opinion/displayStory.cfm?story_id=14213985

http://en.wikipedia.org/wiki/Galileo_Galilei

Bhuvan challenging Google Earth

Google Earth’s got some competition now — from the Indian Space Research Organisation (ISRO), which today unveiled its beta version of Bhuvan (meaning earth in Sanskrit).

iPhone Teardown

Whenever a new gadget hits the streets, it’s a race to see who will be the first to reduce to its constituent pieces. With the launch of the iPhone 3G S we’ve got a pair of different companies doing their darndest to disassemble the latest iteration of Apple’s iconic device. Frankly, I’d be happy to [...]