Sci-tech
Destination
Jupiter
U.S.
scientists think they can unlock many of the mysteries of
Jupiter's colourful atmospheric clouds and giant red spot
by launching a NASA probe. Southwest Research Institute, headquartered
in Texas, has been selected to build and launch the $700 million
probe for NASA that will circle the giant planet and gather
data about its clouds, rock core, atmospheric gases, auroras
and other features. The mission, called Juno, is expected
to launch in 2010. It will help scientists explain how matter
gathered billions of years ago formed the planets, according
to Scott Bolton, a scientist at the institute and the principal
investigator for the mission. "The high-level question
is, how do we make planets?" said Bolton. "Were
trying to go back in time and Jupiter is our key to doing
that. There is no other place in the solar system where we
can go to learn this."
Remains
of Ovulating T-rex
A
Tyrannosaurus rex dinosaur that died 68 million years ago
has provided some of the strongest evidence yet that birds
are the closest-living relatives of dinosaurs. Soft tissue
found in the animal's thighbone strongly suggests it was a
female and just about to lay eggs. The bone tissue is strongly
similar to that made inside the bones of female birds -- and
no other living type of animal -- when they are producing
the hard shells of eggs just before they lay them, said Mary
Higby Schweitzer of North Carolina State University in Raleigh.
"In addition to demonstrating gender, it also links the
reproductive physiology of dinosaurs to birds very closely.
It indicates that dinosaurs produced and shelled their eggs
much more like modern birds than like modern crocodiles,"
continued Schweitzer.
Dancing
Robots
Takahiro
Takeda, postgraduate student of Japan's Tohoku Univ. dances
with Partner Ballroom Dance Robot (PBDR) at a factory of Nomura
Unison robotic venture company in Chino city, 200-km west
of Toyko. The prototype dance partner robot, developed by
Japan's Tohoku University Professor Kazuhiro Kosuge, enables
them to move in all directions with three special wheels by
predicting how its partner will move with a sensor. The robot
will be displayed at the World Expo Aichi 2005 from 09 June.
Nature-deficit
Disorder
A
study by the Kaiser Family Foundation shows U.S. children
spend 44 hours a week with TV, computers and video games.
In his book, Last Child in the Woods, author and columnist
Richard Louv says today's children are suffering from what
he calls nature-deficit disorder. Children deprived of outdoor
activity tend to exhibit a disconnection with nature. The
author says he's interviewed thousands of parents who are
concerned about their children spending way too much time
indoors, who are looking for fun activities to get their children
to spend more time outside.
Power
Lines and Leukaemia Risk
Children
living closer to high-voltage overhead electric lines may
be at an increased risk of leukaemia. Researchers have found
that youngsters living within 200 m of power lines were about
70 percent more likely to develop leukaemia compared with
those who lived beyond 600 m. The study published in the British
Medical Journal studied more than 29,000 children with cancer,
including 9,700 with leukaemia, born between 1962 and 1995.
Some researchers have suggested that low frequency magnetic
fields, such as those caused by the production of electricity,
could possibly be linked to cancer. However, researchers have
said that the study is still on and once confirmed the findings
would amount to about five of the 400 cases of childhood leukaemia
occurring annually.
Sound,
NOT Vision Behind Dyslexia
Scientists
from the University of Wisconsin-Madison and the University
of Southern California (USC) have outright rejected the popular
notion that certain visual processes cause the spelling and
reading woes commonly suffered by dyslexics. They say that
a problem more generic in nature may be at the root of the
learning disorder in dyslexics. Misfiring neurons make it
difficult for dyslexics to pick out relevant visual and auditory
cues from the expanse of surrounding sounds and patterns,
or "noise". This, the researchers claim hampers
their reading abilities also. Experiments revealed that dyslexic
children were as able as their peers to pick out both displays,
but when the patterns were partially obscured with patches
of "noise," or television static-like bright and
dark spots, the dyslexic children found it difficult to isolate
the patterns. Researchers further say that while dyslexic
children suffer little from spoken languages, they do suffer
a great deal from in their reading abilities. "We really
want to understand what is going on at the neurological level
that's leading to reading problems. We think that if a child
has a hard time ignoring 'noise,' it could distort speech
perception and complicate [the recognition] of sound segments,
which is essential for learning how to read," the journal
quoted Anne Sperling, the lead author of the study as saying.
Experts believe that this study will help them to better understand
dyslexic children and also enable teachers to build categories
for better helping them.
Source:
AFP, ANI and Webindia123
Compiled
by: Imran H. Khan
Copyright
(R) thedailystar.net 2005
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