Chinese use pills to curb gerbils
Chinese authorities are using contraceptive pills to cut down the number of gerbils in a north-western province plagued by the rodents.
Forestry officials are leaving pills by the gerbils' burrows to try to cut back the rodents' exploding numbers.
The gerbils, officials say, are threatening the fragile desert ecosystem in the vast Xinjiang region.
http://news.bbc.co.uk/1/hi/world/asi...ic/7963836.stm
Video games 'can improve vision'
Playing action video games can boost an aspect of adult vision previously thought to be fixed, a US study shows.
Researchers found playing the games improved the ability to notice even very small changes in shades of grey against a uniform background.
"Contrast sensitivity" is important in situations such as driving at night, or in conditions of poor visibility.
The Nature Neuroscience study raises the possibility of using a video game training regime to improve vision.
Contrast sensitivity is often one of the first aspects of vision to be affected by ageing.
It can also be affected by conditions such as amblyopia, known as "lazy eye".
http://news.bbc.co.uk/1/hi/health/7967381.stm
Campaign gets footballers booked
The first Harry Potter novel is England football star Wayne Rooney's book of choice, he revealed, as he backed a reading campaign for children.
The annual project run by the National Literacy Trust aims to use sporting figures to inspire children to read.
Rooney, who said the JK Rowling stories "really get your imagination going", was among 20 English Premier League players to reveal their favourite read.
Michael Morpurgo's War Horse, and Homer's Iliad were also chosen.
Muhammad Ali's autobiography, The Soul Of A Butterfly, was picked by Arsenal player Bacary Sagna, while England and Portsmouth goalkeeper David James recommended baseball tale Moneyball, by M Lewis.
http://news.bbc.co.uk/1/hi/uk/7982803.stm
Microfinance changing lives of Afghan women but sector has its challenges
Prize for 'Sun in the box' cooker
A cheap solar cooker has won first prize in a contest for green ideas.
The Kyoto Box is made from cardboard and can be used for sterilising water or boiling or baking food.
The Kenyan-based inventor hopes it can make solar cooking widespread in the developing world, supplanting the use of wood which is driving deforestation.
Other finalists in the $75,000 (£51,000) competition included a device for streamlining lorries, and a ceiling tile that cools hot rooms.
Organised by Forum for the Future, the sustainable development charity founded by Jonathan Porritt, the competition aims to support concepts that have "moved off the drawing board and demonstrated their feasibility" for reducing greenhouse gas emissions, but have not gained corporate backing.
"The Kyoto Box has the potential to transform millions of lives and is a model of scalable, sustainable innovation," said Peter Madden, the forum's chief executive.
It is made from two cardboard boxes, which use reflective foil and black paint to maximise absorption of solar energy.
Covering the cooking pot with a transparent cover retains heat and water, and temperatures inside the pot can reach at least 80C.
As many as two billion people in the world use firewood as their primary fuel.
http://news.bbc.co.uk/1/hi/sci/tech/7991654.stm