Super Velcro

Image: Reusable superglue: An atomic force microscope image shows the surface of a shape memory polymer that has been treated to make a strong reusable adhesive. Two pieces of the polymer stick together when heated, stay stuck when cooled down, and come apart when heated again. Credit: Tao Xie, GM Research and Development Center

From Technology Review:

A novel adhesive is extremely strong, and its stickiness is reversible.

General Motors researchers have made an extremely strong adhesive that comes apart when heated. The adhesive is 10 times stickier than Velcro and the reusable gecko-inspired glues that many research groups have been trying to perfect.

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Life From A Test Tube? The Real Promise Of Synthetic Biology

Image: Matt Collins

From Scientific American:

Scientists are closing in on the ability to make life from scratch, with potential consequences both good and bad.

I have seen the future, and it is now.

Those words came to mind again as I recently listened to Craig Venter, one of those leading the new areas of synthetic genomics and synthetic biology. Every time I hear a talk on this subject, it seems a new threshold in the artificial manipulation and, ultimately, creation of life has been passed.

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Scientists Get Closer To Understanding Why We Age

Biologists have observed that people's cells often age at different rates.
Image Source / Corbis

From Time Magazine:

Time waits for no man, the old truism goes, but in recent years scientists have shown that it does seem to move more slowly for some. Molecular biologists have observed that people's cells often age at different rates, leading them to make a distinction between "chronological" and "biological age."

But the reason for the difference remains only vaguely understood. Environmental factors such as smoking, stress and regular exercise all seem to influence the rate at which our cells age. Now, for the first time, researchers have found a genetic link to cellular aging — a finding that suggests new treatments for a variety of age-related diseases and cancers.

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In Brookhaven Collider, Scientists Briefly Break A Law Of Nature

HOT A computer rendition of 4-trillion-degree Celsius quark-gluon plasma created in a demonstration of what scientists suspect shaped cosmic history. Brookhaven National Laboratory

From The New York Times:

Physicists said Monday that they had whacked a tiny region of space with enough energy to briefly distort the laws of physics, providing the first laboratory demonstration of the kind of process that scientists suspect has shaped cosmic history.

The blow was delivered in the Relativistic Heavy Ion Collider, or RHIC, at the Brookhaven National Laboratory on Long Island, where, since 2000, physicists have been accelerating gold nuclei around a 2.4-mile underground ring to 99.995 percent of the speed of light and then colliding them in an effort to melt protons and neutrons and free their constituents — quarks and gluons. The goal has been a state of matter called a quark-gluon plasma, which theorists believe existed when the universe was only a microsecond old.

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'Star Wars' Is A Mere Phantom Menace To Missiles

From New Scientist:

The US Missile Defense Agency (MDA) has finally shot down a moving missile with an airborne laser – but military experts say the system is not good enough for combat.

A liquid-fuelled rocket – thought to be a Scud-B, similar to those being developed by Iran and North Korea – was fired from a ship off the coast California on 11 February.

Within the next 20 seconds, the "airborne laser testbed" onboard a modified Boeing 747 locked-on to it with two low-powered tracking lasers, then a laser beam of several megawatts, to heat-damage the missile's skin. If such damage is done while booster rockets are still firing, the stresses caused by the acceleration can destroy the missile, as this clip of the test shows.

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Special Ops Gunships To Get Pain-Inducing Weapons

1. An electron gun fires a particle beam through a vacuum tube wrapped with strong magnets.
2. As the beam meets the magnetic field, the electrons bunch up and gyrate, producing high-power microwaves at set frequencies.
3. Mirrors steer the microwaves through a window made of diamond. The gem is used for its resistance to heat and for its clarity.
4. The electron beam’s excess energy is deposited in the coils of a collector.

From Popular Mechanics:

Nonlethal energy-beam blasters that cause pain without killing their targets could finally find a home—inside special operations gunships. Here's how they work.

The Pentagon has been researching nonlethal pain rays since the mid-’90s, but finding a vehicle to carry them has proven to be a challenge. Researchers have mounted these microwave weapons—which repel people by heating water molecules just under the skin, reportedly without damaging tissue—on trucks, guard towers and Humvees, but the U.S. military has never deployed them for real-world use. (Using such weapons on civilians in Iraq or Afghanistan is not seen as a good way to win hearts and minds.)

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My Comment: Ouch.

E-Books: Publishers Poised For Victory In Latest Battle

Photo: Google is thought to be offering the book trade more from e-book sales

From Times Online:

Publishers look set to win the latest round in the battle for supremacy on electronic books, with Google ready to offer major concessions as it prepares to enter the increasingly competitive e-book market.

Following the unveiling of Apple’s iPad, which will feature an electronic bookstore when it launches next month, and Amazon’s humiliation last week by a book publisher in a prices row, Google is thought to have given in to the book industry by offering it a higher share of the sale of e-books.

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Red Wine, Chocolate Among Foods That Fight Cancer

More great news for chocolate lovers: it helps fight cancer. Source: The Australian

From The Australian/AFP:

CABERNET and chocolate are potent medicine for killing cancer, according to new research.

Red grapes and dark chocolate join blueberries, garlic, soy, and teas as ingredients that starve cancer while feeding bodies, Angiogenesis Foundation head William Li said at the Technology Entertainment Design Conference in Long Beach, California.

``We are rating foods based on their cancer-fighting qualities,'' Li said. ``What we eat is really our chemotherapy three times a day.''

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Diamond Nanowire Device Could Lead To New Class Of Diamond Nanomaterials

A diamond-based nanowire device. Researchers used a top-down nanofabrication technique to embed color centers into a variety of machined structures. By creating large device arrays rather than just "one-of-a-kind" designs, the realization of quantum networks and systems, which require the integration and manipulation of many devices in parallel, is more likely. (Credit: Illustrated by Jay Penni.)

From Science Daily:

Science Daily (Feb. 15, 2010) — By creating diamond-based nanowire devices, a team at Harvard has taken another step towards making applications based on quantum science and technology possible.

The new device offers a bright, stable source of single photons at room temperature, an essential element in making fast and secure computing with light practical.

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King Tut's Mom And Dad ID'ed

From Live Science:

Candidates for King Tut's mother and father have been identified using DNA analyses from royal Egyptian mummies.

King Tutankhamun ruled from 1333 to 1324 B.C., during the period of ancient Egyptian history known as the New Kingdom.

Though he is possibly the most well-known of the Egyptian pharaohs, many mysteries still exist about the life, death and parentage of King Tut. But new DNA tests may have helped answer the question of what killed Tut, as well as exactly who his parents were.

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King Tut Died Of Malaria, Had A Club Foot: New Study

The removal of the lid of the sarcophagus of the mummy of King Tutankhamen in his underground tomb in the Valley of the Kings in Luxor November 4, 2007. Reuters/Ben Curtis/Pool

From The National Post:

WASHINGTON -- The celebrated pharaoh Tutankhamun had a club foot, walked with a cane and was killed by malaria, a study showed on Tuesday.

Researchers from Egypt, Italy and Germany used DNA testing to draw "the most plausible" family tree to date for Tutankhamun and computerized tomography (CT) scans to determine that the pharaoh and his forebears were unlikely to have had the feminine physiques they are depicted with in 3,000-year-old artifacts.

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A Faster Wireless Web

Mobile speed: Fasp-AIR will make its first appearance in the wild as an iPhone application designed to speed media uploads over wireless networks. Credit: Aspera

From Technology Review:

A new protocol called fasp-AIR promises speedier mobile downloads.

Transfers of large amounts of data across the Internet to wireless devices suffer from a key problem: The Transmission Control Protocol (TCP) used to send and receive that data can be unnecessarily slow.

A company called Aspera has now announced an alternative protocol designed to accelerate wireless transfer speeds. Called fasp-AIR, it includes new proprietary approaches to addressing problems of data transfer that are unique to wireless communications. The original fasp protocol is already used to boost regular Internet transfers. It was used, for instance, to speed up the transfer of files from New Zealand to the U.S. during production of the movie Avatar.

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'Climategate' Scientist Speaks Out

Professor Phil Jones. Photograph: University of East Anglia

From Scientific American:

Climatologist Phil Jones answers his critics in an exclusive interview with.

Phil Jones holds himself defensively, his arms crossed tightly in front of his chest as if shielding himself from attack. Little wonder: Jones has spent the past three months being vilified for his central role in what is now called "climategate."

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Why Google Wants A Faster Internet

Scott Barbour / Getty Images

From Time Magazine:

There was no lack of, well, buzz about Google's new Buzz social-media platform last week, but more important were a series of moves that suggest the search giant is ready to take a tentative step toward fixing one of its longest-held gripes: the speed of Internet connections in the U.S.

In a blog post on Feb. 10, Google product managers Minnie Ingersoll and James Kelly laid out the company's plan to provide as many as 500,000 people in a small number of locales with fiber-optic Internet connections capable of one gigabit per second (Gbps), more than 100 times faster than the typical U.S. broadband connection speed today. It would be a blazing-fast upgrade, capable of downloading a full-length HD movie in under 90 seconds.

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Scientists Discover The Secret Of Ageing

From The Financial Times:

One of the biggest puzzles in biology – how and why living cells age – has been solved by an international team based at Newcastle University, in north-east England.

The answer is complex, and will not produce an elixir of eternal life in the foreseeable future.

But the scientists expect better drugs for age-related illnesses, such as diabetes and heart disease, to emerge from their discovery of the biochemical pathway involved in ageing.

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Did 'Dark Stars' Spawn Supermassive Black Holes?

A massive dark star voraciously eating matter and dark matter until it is well over 100,000 times the mass of the sun (NASA/Ian O'Neill).

From Discover Magazine:

Approximately 200 million years after the Big Bang, the universe was a very different place.

For starters, there was no starlight as there were no stars. This period was known descriptively as the "Dark Ages." As there were no stars, only clouds of the most basic elements persisted, fogging up the cosmos.

Although it's believed the first stars (known as "Population III stars") were sparked when hydrogen and helium gases cooled enough to clump together, collapsing under gravity and initiating nuclear fusion in the star cores (thus generating heavier elements), there's another possibility.

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A Gene For Alzheimer's Makes You Smarter

An intellectual advantage (Image: Joerg Sarbach/AP/PA)

From The New Scientist:

A GENE variant that ups your risk of developing Alzheimer's disease in old age may not be all bad. It seems that young people with the variant tend to be smarter, more educated and have better memories than their peers.

The discovery may improve the variant's negative image (see "Yes or no"). It also suggests why the variant is common despite its debilitating effects in old age. Carriers of the variant may have an advantage earlier in life, allowing them to reproduce and pass on the variant before its negative effects kick in. "From an evolutionary perspective it makes sense," says Duke Han at Rush University Medical Center in Chicago.

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Why Does Time Fly When You Are Having Fun?

From The BBC News:

It might seem like a bit of an odd question, but what speed does time travel at?

The obvious answer is that it ticks by at exactly the rate of 60 seconds every minute. But new research into our perception of time shows that for us humans, time is a lot more complicated.

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Cameras of the Future: Heart Researchers Create Revolutionary Photographic Technique

The image shows a drop of milk falling into a beaker of water. A video was made at the same time, using the same camera, and represents the same image data. The still image has a 16 fold greater spatial resolution (see swirls of milk in the beaker), and it can be decoded into the video frames played in sequence to reveal the high-speed motion content. (Credit: Copyright Dr Gil Bub, University of Oxford)

From Science Daily:

Science Daily (Feb. 15, 2010) — Scientists at the University of Oxford have developed a revolutionary way of capturing a high-resolution still image alongside very high-speed video -- a new technology that is attractive for science, industry and consumer sectors alike.

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Why Is The Sun's Atmosphere So Hot?

A schematic diagram of the cycle of mass in the solar atmosphere. High speed upflows seen in the magnetic upper chromosphere as Type-II spicules, get thrust into the corona; this material is visible at a wide range of temperatures, and some of it becomes entrained in the coronal magnetic field. Later, this material falls out along the same magnetic field lines, most likely as a phenomena called "coronal rain."

From Live Science:

The 2006 launch of the multinational Hinode satellite changed the picture of the Sun for astrophysicists. For two astrophysicists in particular, the resulting imagery offered a voyage of discovery and the thrill of unraveling a long-held solar mystery.

Earth's atmosphere can obscure the view of unaided ground-based telescopes, but, unimpeded by this problem, the high-resolution telescope flying on Hinode captures images of the Sun in unparalleled detail.

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