[ASC-media] Radio Extra - 10 April 2004

Sapier, Jeff (RBI - AUS) Jeff at NewScientist.com.au
Thu Apr 8 11:14:09 EST 2004


RADIO EXTRA: STORIES FROM 10 APRIL 2004 ISSUE


CHROMOSOME CLOCK TICKS OUT OUR FATE A new theory suggests that Charles
Darwin was wrong about natural selection driving evolution and extinction.
An Austrian scientist is proposing that the protective caps on the ends of
chromosomes-called telomeres-act like an internal timer, eroding slowly with
each generation and counting the years towards a species' doom. Page 9

ICE MELT MAY DRY OUT US WEST COAST As Arctic sea ice melts over the next 50
years due to global warming, towns and cities along the west coast of the US
could suffer serious water shortages. Researchers from the University of
California have modelled the impact of sea ice changes on the world's
climate. And while Europe got off lightly, the annual rainfall between
Seattle to Los Angeles looked likely to drop by as much as 30 per cent. Page
17

DOGS DO RESEMBLE THEIR OWNERS The old adage that people resemble their pet
dogs may really be true, a US study has found. Strangers match pure-bred
dogs to their owners most of the time, but not mixed breeds. New Scientist's
free public website at http://www.newscientist.com
<http://www.newscientist.com> 

VIAGRA COULD REDUCE MEN'S FERTILITY Taking Viagra could reduce men's
fertility, a study in Northern Ireland suggests. The anti-impotence drug not
only makes sperm move faster, the researchers found, but also causes a vital
reaction needed to penetrate the egg to occur prematurely. New Scientist's
free public website at http://www.newscientist.com
<http://www.newscientist.com> 

METAL VELCRO (short story) NASA is considering using a metal form of Velcro
to hold future satellites and spacecraft together. Known as Vaccro, it
should make docking in space much simpler, because it involves no cables,
bolts or tethers. Page 24

HAPPY MEMORIES A forgotten form of computer memory, based on minuscule
magnets, is being revamped for a power-saving, crash-proof comeback. Pages
28-31

GLOWING ALCOPOPS (short story) Drinks that glow under ultraviolet light
could be the next big thing on the clubbing scene. British chemists have
developed a tasteless and odourless compound that can light up alcoholic
drinks. Page 24

POWER OF THE MIDDAY SUN Concentrating the intense heat of sunshine with
mirrors to heat water has finally become a viable way to generate
electricity. A power plant using such technology is being trialled in the
Spanish desert, while in other parts of Europe wave-energy is starting to
feed power into the grid in Denmark, and France has begun work on utilising
subterranean hot dry rocks. Page 26

BRAZIL'S BEEF TRADE WRECKS RAINFOREST World demand for cheap, disease-free
Brazilian beef is soaring. But supplying the global beef market is
deforesting the Amazon far faster than the logging trade. Pages 14-15 

INDIAN TEENS HAVE WORLD'S HIGHEST SUICIDE RATE The highest suicide rate in
the world has been reported among young women in South India. The research
is of major importance, according to the World Health Organisation, as it
reveals Asia's hidden suicide problem. New Scientist's free public website
at http://www.newscientist.com <http://www.newscientist.com> 


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