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Also in Science & Technology

Smiling indicates the kind of positivity which is believed to prolong life

Health

Smile, and your doctor smiles with you

Analysis of vintage baseball players' photos gives insight

Scientists discover non-surgical means for mind-controlled prosthetics

Health

Thought-controlled prosthetics

Non-surgical, mind-controlled prosthetics discovered

Scientists found remains of a prehistoric snake which preyed on baby dinosaurs

Science

Dinosaur-eating snake fossil found

Remains of prehistoric predator found among dinosaur eggs

Forming a strong bond can help children's development

Health

Good parenting overcomes prenatal stress

Sensitive parenting overrides stress hormone effects

Instead of metal space stations, astronauts could orbit in inflatable balloons

Tomorrow's world

Nasa 'plans inflatable space stations'

The US agency will increase research and development funding

eBay is one of 20 large corporations already trialling the Bloom Box

Science

Bloom Box: The new clean energy

Every home could one day have its own green power plant

Architects could model sustainable developments on termite mounds

Tomorrow's world

Can termite mounds inspire eco-cities?

Architects turn to insects for ideas on sustainability