Science & TechnologyS


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Metal detector pair find Roman Briton skeleton

The 1,800-year-old skeleton of one of Roman Britain's "social elite" has been discovered by two men with metal detectors who had already unearthed a £1 million Viking treasure.

©PA
Mags Felter of the York Archaeological Trust examines the skeleton

Info

Mars' Molten Past

Mars was covered in an ocean of molten rock for about 100 million years after the planet formed, researchers from the Lunar and Planetary Institute in Houston, Texas, UC Davis, and NASA's Johnson Space Center have found. The work is published in the journal Nature on Nov. 22. The formation of the solar system can be dated quite accurately to 4,567,000,000 years ago, said Qing-Zhu Yin, assistant professor of geology at UC Davis and an author on the paper.

©Unknown

Telescope

Oddball white dwarfs embody new category of star

Eight unusual examples of a burned-out celestial object known as a white dwarf detected in our Milky Way galaxy represent a previously unknown category of stars, astronomers said on Wednesday.

©REUTERS/M.S. Sliwinski and L. I. Slivinska of Lunarismaar/Handout
An artists' concept of the surface of the white dwarf star H1504+65, released to Reuters on November 21, 2007.

HAL9000

Flashback Are we living in a computer simulation?

Until I talked to Nick Bostrom, a philosopher at Oxford University, it never occurred to me that our universe might be somebody else's hobby. I hadn't imagined that the omniscient, omnipotent creator of the heavens and earth could be an advanced version of a guy who spends his weekends building model railroads or overseeing video-game worlds like the Sims.

But now it seems quite possible. In fact, if you accept a pretty reasonable assumption of Dr. Bostrom's, it is almost a mathematical certainty that we are living in someone else's computer simulation.

Question

Are Aliens Among Us?

In pursuit of evidence that life arose on Earth more than once, scientists are searching for microbes that are radically different from all known organisms

©Kenn Brown Mondolithic Studios
ALIEN MICROBES may be hiding in plain sight. Although they might look like ordinary bacteria, their biochemistry could involve exotic amino acids or different elemental building blocks.

Star

Flashback Meteor theory's impact: Cosmic blows could occur more frequently

Most astronomers doubt that any large comets or asteroids have crashed into the Earth in the past 10,000 years. But the self-described "band of misfits" that make up the two-year-old Holocene Impact Working Group say astronomers simply have not known how or where to look for evidence.

Scientists in the working group say the evidence for such impacts during the past 10,000 years, known as the Holocene epoch, is strong enough to overturn current estimates of how often the Earth suffers a violent impact on the order of a 10-megaton explosion. Instead of once in 500,000 to 1 million years, as astronomers now calculate, catastrophic impacts could happen every few thousand years.

Telescope

Did a Comet Cause the Great Flood?

The serpent's tails coil together menacingly. A horn juts sharply from its head. The creature looks as if it might be swimming through a sea of stars. Or is it making its way up a sheer basalt cliff? For Bruce Masse, an environmental archaeologist at Los Alamos National Laboratory, there is no confusion as he looks at this ancient petroglyph, scratched into a rock by a Native American shaman. "You can't tell me that isn't a comet," he says.

©Discover
The Fenambosy chevrons at the tip of Madagascar. Image courtesy of Dallas Abbott

Coffee

Honda Debuts All-New FCX Clarity Advanced Fuel Cell Vehicle



©Unknown
The FCX Clarity utilizes Honda's V Flow stack in combination with a new compact and efficient lithium ion battery pack and a single hydrogen storage tank to power the vehicle's electric drive motor.

Honda has unveiled the FCX Clarity fuel cell vehicle at the Los Angeles Auto Show, announcing plans to begin limited retail marketing of the vehicle in summer 2008. The FCX Clarity is a next-generation, zero-emissions, hydrogen-powered fuel cell vehicle based on the entirely-new Honda V Flow fuel cell platform, and powered by the highly compact, efficient and powerful Honda V Flow fuel cell stack.

Coffee

300 Miles Per Gallon! Aptera Motors Unveils Ultra Efficient All-Electric and Plug-In Hybrid



©Unknown
The Aptera Typ-1 is loaded with safety features. They include a front crumple zone, a front end that re-directs crash energy in a frontal impact, steel and composite side and rollover protection as well as driver and passenger side airbags.

Carlsbad, California - Electric Vehicles for Under $30K! Today, Aptera officially unveiled two vehicles that could change the future of automotive design. Aptera's Typ-1 is a radically different vehicle designed to marry advanced aerodynamics with light-weight composite technology creating an incredibly powerful, yet extremely safe vehicle that is a joy to drive -- even for the most performance-minded individuals.

Telescope

Astronomers Say Moons Like Ours Are Uncommon



©NASA/JPL-Caltech
This artist's animation shows bodies as big as mountain ranges smashing together. Such collisions form the basis of the planet-building process. An even bigger collision between Earth and a body the size of Mars is thought to have created our moon.

(For animation, click here.)