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What goes on when lightning strikes?
One lightning flash could run a whole power station – and there are 8 million strikes around the Earth every day. We still don't know what triggers the phenomenon, although a new theory proposes a role for cosmic raysA new theory from Russian researchers suggests that lightning may be a by-product of cosmic rays. Surprisingly, despite studying lightning for centuries, we are still not sure what triggers it.Divine attributionIn ancient times, the drama of thunder and lightning so clearly went beyond human scale that the phenomenon was handed wholesale to the gods. The Greeks had Zeus, the Romans Jupiter. At the head of th...
Source: Guardian Unlimited Science - May 25, 2013 Category: Science Authors: Brian Clegg Tags: Meteorology World news Natural disasters and extreme weather Features UK news The Observer Science Source Type: news

With a broken promise, the government has handed the NHS over to the market | Clive Peedell
Reassurances on clinicians and local people controlling how services are commissioned look likely to be overturnedThe NHS needs to be reformed to remain true to its founding principles; the question is how. International evidence suggests that increasing marketisation and privatisation of healthcare services leads to greater expenditure, greater variations in care, reduced access to services, and erosion of professional standards. On that basis, the reforms have been heading in the wrong direction for a long time, with all the major political parties supporting policies that increase the role of the private sector in the N...
Source: Guardian Unlimited Science - March 3, 2013 Category: Science Authors: Clive Peedell Tags: Comment The Guardian Society Politics Privatisation NHS Andrew Lansley Comment is free Source Type: news