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Silicon And Diamond
To make super-durable and strong details it is necessary to use so-called diamond composites, i.e. materials (matrixes) with incorporated tiny diamonds. The matrix is to be durable, strong, wear-proof as well as monolithic by structure ensuring chemical interaction with diamonds. To avoid internal tension this matrix must have physical... view more... (2002-09-23)
Antarctic ice shelf disintegrating as result of climate change, say scientists
Satellite imagery from the University of Colorado at Boulder's National Snow and Ice Data Center shows a portion of Antarctica's massive Wilkins Ice Shelf has begun to collapse because of rapid climate change in a fast-warming region of the continent. view more (2008-03-26)
Scientists Detect Melting of Antarctic Ice Shelf
A giant ice shelf the size of Scotland is melting rapidly in warm Antarctic waters, a report in SCIENCE will reveal today. Thinning of the Larsen Ice Shelf - vast sections of which collapsed catastrophically during the 1990's - was discovered by scientists at the University of Cambridge, University College London, University of Bristol and the... view more... (2003-10-29)
What Happened on Easter Island? @ the London `Catastrophes` conference
Easter Island is exceptionally isolated in the South Pacific. When Europeans first visited the island in 1722 AD, they found a population of about 4000 Polynesians scratching a living among what appeared to be the ruins of a collapsed civilization. Stone figures weighing up to 80 tonnes littered the landscape and there were also numerous... view more... (2002-08-17)
Bees go 'off-color' when they are sickly
Bumble-bees go 'off colour' and can't remember which flowers have the most nectar when they are feeling under the weather, a new study from the University of Leicester reveals. view more (2008-07-16)
Equations against hypothermia
Sharks are, by tradition, the eternal threat facing divers. Yet, a diver is quite a lot more unlikely to meet such a creature under the water than, at some time or another, to come up against an even greater danger - hypothermia, or exposure. To enable divers to prevent this syndrome from creeping silently up on them, two researchers from the Area... view more... (2004-09-01)
Penguins setting off sirens over health of world's oceans
Like the proverbial canary in the coal mine, penguins are sounding the alarm for potentially catastrophic changes in the world's oceans, and the culprit isn't only climate change, says a University of Washington conservation biologist. view more (2008-07-01)
Predators drive the lemming cycle in Greenland
A recent study conducted in eastern Greenland and published in the October 31 issue of the Science magazine provides new understanding of the dynamics of arctic lemming populations. Olivier Gilg and Ilkka Hanski from the University of Helsinki, Finland, and Beno'®t Sittler from the University of Freiburg, Germany, combined long-term field... view more... (2003-10-29)
Two bees or not two bees? Researchers take first look at the genetic differences between queen and worker honeybees
For the first time scientists have been able to examine the genetic processes that decide whether a juvenile bee is destined for life as a worker or as a queen. By stringing together a series of images that describe which genes are active, researchers at the Bee Research Laboratory and the University of Arizona have been able to picture exactly... view more... (2001-01-09)
Newly Compiled Online Bee Checklist Allows Biologists To Link Important Information About All Bee Species
n time for National Pollinator Week, June 22 through June 28, biologists have completed an online effort to compile a world checklist of bees. They have identified nearly 19,500 bee species worldwide, about 2,000 more than previously estimated. view more (2008-06-19)
Pesticide build-up could lead to poor honey bee health
Honey bees industriously bring pollen and nectar to the hive, but along with the bounty comes a wide variety of pesticides, according to Penn State researchers. view more (2008-08-19)
LSU researchers challenge analyses on sustainability of Gulf fisheries
Louisiana's coastal fisheries produce approximately 25 percent of the total catch by weight in the lower 48 states. With such a substantial portion of the nation's economy dependant on the state of these waters - particularly the Gulf of Mexico region - it comes as no surprise that these fisheries are heavily monitored and scrutinized by... view more... (2008-02-19)
Honeybee dance breaks down cultural barrier
Asian and European honeybees can learn to understand one another's dance languages despite having evolved different forms of communication, an international research team has shown for the first time. The findings are published this week in the journal PLoS ONE. view more (2008-06-04)
NJIT professor says certain home shapes and roofs hold up best in hurricane
Certain home shapes and roof types can better resist high winds and hurricanes, according to a researcher at New Jersey Institute of Technology (NJIT). view more (2007-06-20)
Aphids make 'chemical weapons' to fight off killer ladybirds
Cabbage aphids have developed an internal chemical defence system which enables them to disable attacking predators by setting off a mustard oil 'bomb'. view more (2007-07-11)
Who Killed MG Rover?
The Phoenix consortium was not to blame for the collapse of Rover. The fault-lines that finally led Rover into administration actually go back as far as the early 1960s, says a new report published today (26 April 2005) by the Cambridge-MIT Institute Centre for Competitiveness and Innovation at Cambridge University. In the report 'Who Killed MG... view more... (2005-04-27)
Scientists detect first afterglow of short gamma-ray bursts
In the powerful, fast-fading realm of gamma-ray bursts, scientists say they have detected for the first time a lingering afterglow of the shortest types of bursts, which themselves disappear within a second. view more (2002-02-18)
Stratified seawater disrupts the transport of imposex substances
Researchers from the University of Amsterdam have demonstrated that the climate in South Mexico changed following the collapse of the Maya empire. From preserved pollen grains the paleoecologists could deduce that the climate quickly became dryer. The climate becoming dryer, explains the decrease in the population following the collapse of the... view more... (2002-01-24)
The Risk Of Antarctic Ice Sheet Collapse
There has been much speculation that global warming may cause sea levels to rise due to the melting of ice sheets. For the first time scientists have worked out the likelihood of Antarctic ice sheet collapse using engineering risk-analysis techniques. They conclude that there is a 5% chance of major sea level rise (up to 1 metre) in the next... view more... (2001-12-28)
Why are cod stocks collapsing?
Sudden collapses in many ecological systems are the rule rather than exceptions to the rule. This is shown by Professor Lennart Persson of Ume'å University, Sweden, in the latest issue of the scientific journal Proceedings of the National Academy of Sciences. Among other things, the article provides an explanation for the collapses in cod... view more... (2002-09-23)
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