Earth & Environment /
CLIMATE CHANGE Surface and Deep Water Processes were Closely Related during Abrupt Change in the North Atlantic over the Past 420000 Years 24 Aug, 2007 11:50 am A recent study (Martrat et al., 2007) based on high-resolution analyses of proxies for sea surface temperature, water mass distribution and relative biomarker content in marine sediment cores from the Iberian Margin shows that centennial climate variability over the last ice age exhibited a clear bipolar behaviour over the last 420,000 years. Abrupt cold episodes also occurred after relatively warm and largely ice-free periods when the predominance changed from northern deep waters to southern.... Read more Posted by Prof Joan O. Grimalt - Post comment |
||
Technology /
FUTURE ENERGIES Biofuels or Forests? 23 Aug, 2007 11:37 am Carbon-free transport fuels present some of the most difficult problems in adapting to a low carbon economy and, while there are solutions like hydrogen in the offing, it will probably be 30 years or more,... Read more Posted by Dr Renton Righelato - 2 comment(s) |
Technology /
FUTURE ENERGIES Laser-Fusion: Techno-fix to World Energy Crisis? 22 Aug, 2007 12:17 pm A huge laser is to be constructed at a cost of half a billion Euros in a project rated as "priority" by the European Union and named HiPER. It is intended to use the laser to promote a sustainable nuclear... Read more Posted by Prof Chris Rhodes - Post comment |
|||
Biology /
EVOLUTION "Humans and African Great Apes Probably Split Much Earlier" 22 Aug, 2007 07:01 pm A study in Nature reports evidence of a new species of great ape found in Ethiopia. Interview with Dr Gen Suwa, lead researcher. ... Read more Posted by Dr Gen Suwa - Post comment |
Health & Medicine /
NEUROSCIENCE A Robot Controlled by a Simulated Rat Brain 20 Aug, 2007 11:09 am For a long time scientists have been quite intrigued by the rat’s ability to perform spatial tasks such as maze solving. Rats can combine scent and visual cues from the environment with their own sequence... Read more Posted by Prof Alfredo Weitzenfeld - Post comment |
|||