1. Almost modern skulls found in Ethiopia

    jake on 2003.06.11
    at 02:46 pm

    Scientists have found skulls in Ethiopia that date back to almost 160,000 years old. While not one hundred percent representative of modern man they are close enough physically to group them with us.

    Previously, the earliest fossils of Homo sapiens found in Africa had been dated to about 130,000 to 100,000 years, although they were less complete and sometimes poorly dated, White said.

    The new skulls, which were dated at between 160,000 and 154,000 years old, are described in two papers that appear in Thursday's issue of Nature.

    White and his colleagues assigned the new creatures to a subspecies of Homo sapiens they named Homo sapiens idaltu — idaltu meaning "elder" in the Afar language.

    Yahoo! News

    Posted in: Science

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  2. New DVDs all wet

    jake on 2003.06.11
    at 02:02 pm

    Because of a problem with heat cracking the conventional blue lasers used for next generation DVDs a new method using water has been developed. This should reduce costs, which have been high during early production development.

    Liquids, however, don't crack. Enter the world's first water-based blue laser. Researchers at BlackLight Power heated water vapor with microwaves to generate energized hydrogen atoms which emit multispectrum light rays, including infrared, blue and violet. A prototype blue laser device is expected by the end of the year.

    Popular Science

    Posted in: Technology

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