News tagged with great challenge


The great cosmic challenge

Physics / General Physics

created Oct 28, 2008 | popularity 4.3 / 5 (32) | comments 12

(PhysOrg.com) -- Today cosmologists are challenging the world to solve a compelling statistical problem, to bring us closer to understanding the nature of dark matter and energy which makes up 95 per cent of the ‘missing’ ...





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3-D microchips for more powerful and environmentally friendly computers

3-D microchips for more powerful and environmentally friendly computers

Technology / Semiconductors

created Dec 11, 2009 | popularity 4.6 / 5 (14) | comments 4

Not so long ago our computers had a single core which had to be boosted for performance - making each machine into a great central heating system. Beyond 85° C, however, electronic components become unstable. ...


Mathematical models key to tracking gossip, terrorists

Mathematical models key to tracking gossip, terrorists

Other Sciences / Mathematics

created Dec 09, 2009 | popularity 4 / 5 (4) | comments 0

(PhysOrg.com) -- Thanks to the Internet and online social networks (OSNs) news and gossip now spread literally like wildfire -- uncontrollably and seemingly without any order. But according to one Ryerson ...


New silicon-germanium nanowires could lead to smaller, more powerful electronic devices

Nanotechnology / Nanophysics

created Dec 09, 2009 | popularity 5 / 5 (5) | comments 0

(PhysOrg.com) -- Microchip manufacturers have long faced challenges miniaturizing transistors, the key active components in nearly every modern electronic device, which are used to amplify or switch electronic signals.


A special kind of flight training

A special kind of flight training

Technology / Engineering

created Dec 08, 2009 | popularity 4 / 5 (2) | comments 0

(PhysOrg.com) -- A new generation of flight simulators will attempt to make air traffic safer.


Small addition to cancer drug may make big difference

Medicine & Health / Cancer

created Dec 08, 2009 | popularity 3 / 5 (2) | comments 0

University of Florida researchers have found a way to use just a fraction of the normal dosage of a highly toxic, debilitating chemotherapy drug to achieve even better results against colon cancer cells.


5 top publishers plan rival to Kindle format

Technology / Business

created Dec 08, 2009 | popularity 4.3 / 5 (4) | comments 2

(AP) -- Five of the nation's largest publishers of newspapers and magazines plan to challenge Amazon.com Inc.'s Kindle electronic-book reader with their own digital format that would display in color and work on a variety ...


Researchers develop cheap, easy 'kitchen chemistry' to perform formerly complex synthesis

Chemistry / Analytical Chemistry

created Dec 04, 2009 | popularity 4.6 / 5 (12) | comments 0

A team at The Scripps Research Institute has made major strides in solving a problem that has been plaguing chemists for many years: how best to break carbon-hydrogen bonds and then to create new bonds to join molecules together. ...


Electromagnetic fields as cutting tools

Technology / Engineering

created Dec 01, 2009 | popularity 4.7 / 5 (21) | comments 13

(PhysOrg.com) -- The bodywork on motor vehicles must be sufficiently stable, but processing the high-strength steels involved -- for example punching holes in them -- can prove something of a challenge. A new steel-cutting ...


Homicide rates linked to trust in governement, sense of belonging, study suggests

Other Sciences / Social Sciences

created Dec 01, 2009 | popularity 3.7 / 5 (6) | comments 0

When Americans begin routinely complaining about how they hate their government and don't trust their leaders, it may be time to look warily at the homicide rate.


Biology of emergent Salmonella exposed

Biology of emergent Salmonella exposed

Biology / Biotechnology

created Nov 30, 2009 | popularity 5 / 5 (1) | comments 0

Researchers have characterised a new multi drug resistant strain of Salmonella Typhimurium that is causing life-threatening disease in Africa.



List of search results for great challenge