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Friday, February 6, 2009

The Black Wolf: The 1st Genetically Modified Predator


Art by Frank Frazetta. Creepy © current copyright holders
Emergence of black-colored wolves is the direct result of humans raising dogs as pets and beasts of burden, according to new. And dark coloring may also aid the survival of the species as wolf habitat is affected by climate change in the future.
Using genetic analysis of gray wolf populations from North America and Europe, the researchers traced the source of the dominant gene responsible for dark coat color in wolves to domesticated dogs and conclude the trait was passed to the gray wolf population, as well as to coyotes, by mating between the closely-related wild and domestic canid species. The transition could have taken place as recently as the arrival of European domestic dogs in North America or as long as 14,000 years ago when humans migrated into North America across the Bering Strait.

Since then, black fur has become commonplace in wolf packs, perhaps because snow-covered northern environments are shrinking and darker coloring allows for greater stealth while hunting in areas without snow. While gray wolves can be found in colors ranging from white to gray to black, light-coloration is predominantly found in the arctic tundra where wolves prey on barren ground caribou. The researchers note that the relationship between coat color and habitat is often attributed to adaptation and natural selection, but this is the first example of a genetic modification that likely arose due to human selection becoming adaptive and selected for when back in nature.

"Although it happened by accident, black wolves are the first example of wolves being genetically-engineered by people," said Marco Musiani. "Domestication of dogs has led to dark-colored coats in wolves, which has proven to be a valuable trait for wolf populations as their arctic habitat shrinks," Musiani said. "It also shows that human activities can help enrich the genetic diversity of wild animal populations, which is a very unexpected finding."

Werewolf of London
Ref: Molecular and Evolutionary History of Melanism in North American Gray Wolves. 2009. T. M. Anderson, et al. Science 323: Published Online February 5, 2009.

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Story & art by the great team of Archie Goodwin and Reed Crandell

Thursday, February 5, 2009

Fossils of the Oldest Life on Earth Found


Challengers of the Unknown © DC Comics
Ref.: Fossil steroids record the appearance of Demospongiae during the Cryogenian period. 2009. G. D. Love et al. Nature 457: 718-721
Go read the full story over at the Palaeoblog.

They’ve been nice enough to link to us many times over the past few years!

The Atom: Servant of Man!

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House of Secrets #27 © DC Comics
Jack Schiff (Script); Morris Waldinger (Pencils); Tommy Nicolosi (Inks)

Sunday, February 1, 2009

The Secret of the Dinosaur Skeleton


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Strange Adventures #138 © DC Comics
Gardner Fox (Script), Gil Kane (Pencils), & Joe Giella (Inks)

Saturday, January 31, 2009

This Day In History: 1st Primate In Space


In 1961, the U.S. launched a 4-year-old male chimpanzee named Ham on a Mercury-Redstone 2 rocket into suborbital flight to test the capabilities of the Mercury capsule. During his 16.5 minute suborbital flight, Ham experienced about 7 minutes of weightlessness, reached an altitude of 108 miles and a speed of 13,000 mph.


He was wired to medical sensors to monitor his vital signs. During flight, Ham performed some simple tasks such as pulling levers when a light came on for a reward of banana pellets. Ham was recovered safely 1,425 miles downrange. This was a test flight before risking the lives of human beings.


After Ham's successful flight, NASA was ready to launch the first Mercury astronaut, Alan Shepard, into sub-orbital flight three months later. link






Superman #147 © DC Comics

Friday, January 30, 2009

Quantum Teleportation - A Mark Merlin Mystery!



Teleportation works because of a remarkable quantum phenomenon called entanglement which only occurs on the atomic and subatomic scale. Once two objects are put in an entangled state, their properties are inextricably entwined. Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.


Abstract: Quantum teleportation is the faithful transfer of quantum states between systems, relying on the prior establishment of entanglement and using only classical communication during the transmission.


We report teleportation of quantum information between atomic quantum memories separated by about 1 meter. A quantum bit stored in a single trapped ytterbium ion (Yb+) is teleported to a second Yb+ atom with an average fidelity of 90% over a replete set of states.


The teleportation protocol is based on the heralded entanglement of the atoms through interference and detection of photons emitted from each atom and guided through optical fibers. This scheme may be used for scalable quantum computation and quantum communication.



It’s all explained here
Ref: Quantum Teleportation Between Distant Matter Qubits. 2009. S. Olmschenk. et al. Science 323: 486-489.
A MARK MERLIN MYSTERY!:

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House of Secrets # 42 (March, 1962) © DC Comics
Pencils: Mort Meskin; Inks: George Roussos

Tuesday, January 27, 2009

Nuclear Fusion-Fission Hybrid Saves The Future

Physicists at The University of Texas at Austin have designed a new system that, when fully developed, would use fusion to eliminate most of the transuranic waste produced by nuclear power plants.
Toxic nuclear waste is stored at sites around the U.S. Debate surrounds the construction of a large-scale geological storage site at Yucca Mountain in Nevada, which many maintain is costly and dangerous. The storage capacity of Yucca Mountain, which is not expected to open until 2020, is set at 77,000 tons. The amount of nuclear waste generated by the U.S. will exceed this amount by 2010.

The scientists propose destroying the waste using a fusion-fission hybrid reactor, the centerpiece of which is a high power Compact Fusion Neutron Source (CFNS). The CFNS would provide abundant neutrons through fusion to a surrounding fission blanket that uses transuranic waste as nuclear fuel. The fusion-produced neutrons augment the fission reaction, imparting efficiency and stability to the waste incineration process.


The CFNS is based on a tokamak, which is a machine with a "magnetic bottle" that is highly successful in confining high temperature (more than 100 million°C) fusion plasmas for sufficiently long times.

The process would ultimately reduce the transuranic waste from the original fission reactors by up to 99 percent. Burning that waste also produces energy. link
Ref.: Fusion–Fission Transmutation Scheme—Efficient destruction of nuclear waste. 2009. M. Kotschenreuther, et al. Fusion Engineering and Design 84: 83-88.
Roky Erickson - Creature with the Atom Brain (1980)


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House of Mystery #129 (Dec. 1962) © DC Comics