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BBC

Le fonti da cui sono tratti gli articoli inseriti nella sezione Documenti di Elettroni.

Tiny 'nuclear batteries' unveiled
9 Ott 2009 - 14:31

Researchers have demonstrated a penny-sized "nuclear battery" that produces energy from the decay of radioisotopes.

Tech addiction 'harms learning'
16 Set 2009 - 23:02

Technology addiction among young people is having a disruptive effect on their learning, researchers have warned. Their report concluded that modern gadgets worsened pupils’ spelling and concentration, encouraged plagiarism and disrupted lessons.

The study of 267 pupils aged 11 to 18 found 63% felt addicted to the internet and 53% to their mobile phones.

The research said technology drove a social lifestyle that involved a strong desire to keep in touch with friends.

Expedition to remote jungle discovers rat as big as a cat
8 Set 2009 - 08:35

The BBC’s Natural History Unit has discovered a new species of giant rat on an expedition to a remote rainforest in Papua New Guinea. Weighing in at 1.5kg, and measuring 82cm from nose to tail, the Bosavi Woolly Rat is one of the biggest rats in the world – as big as a domestic cat.

The find was made in the crater of the extinct volcano Mount Bosavi while filming for the Lost Land Of The Volcano, the third in a series of BBC One expeditions to remote jungles.