News Bitcoin is an experimental digital currency that has gained popularity worldwide

James Howells accidentally threw away a hard drive containing the cryptographic "private key" needed to access the digital currency

Sony's issues guide to PS4's "Blue Light of Death" error

Sony says these "isolated incidents [...] represent a very small percentage of total units shipped to consumers to date"

Why filling hard drives with helium can boost storage capacity by 50%

The latest innovation in hard drive technology has taken years to perfect but means quieter, more energy efficient hard drives that fit more data in the same space

'Digital downtime' means we spend more than five days each year waiting for computers to load

Slow PCs and laptops have entered the top seven list of our everyday annoyances

Elsener with the hugely popular knife: he served the family firm for 70 years before handing over to his son, Carl IV

Carl Elsener: Businessman who transformed the Swiss Army Knife into a global product

Starting as a teenage apprentice cutler, Carl Elsener went on to turn a relatively simple penknife into the global phenomenon that is the multi-functional Swiss Army Knife. He worked for the Swiss family firm Victorinox for 70 years, 57 of them as CEO, and retained the honorary, almost spiritual title "Senior Leader" until his death at the age of 90.

The Sound of One Hand Killing, By Teresa Solana

Teresa Solana is already known to us, as are her terrible twins, through two previous crime novels. Again translated by Peter Bush, The Sound of One Hand Killing is, however, the first in the series in which Solana and her twin Barcelona private eyes, Borja ("Pep") and Eduard Masdeu, actually meet on the page.

The device doesn’t do much that you couldn’t do by hooking your television up to an Android phone

A Week With: Android Mini 4.0

A smart-TV device you'd have to be an android to love

Elite: the old and the new

30 years on, game fans put up cash for sequel to Elite

Computer game flies again after Kickstarter crowdsourcing hit

Jessica's recipe bag: 'There were vegetables, there was cheese, there was meat, there was fish – there was even a lime for my gin and tonic. The cost? £69.'

On The Menu: Jessica's Recipe Bag; Joseph Joseph; Da Mhile whisky; Paxton and Whitfield; Coya restaurant

This week I've been eating... Jessica's Recipe Bag

The 10 Best tough gadgets

If you regularly wreck mobiles, need a watch that can take a kicking or fancy a water-proof MP3, check these out...

Coroner criticises MI6 investigation into spy Gareth Williams' death

MI6 and a senior detective were accused today of failing to disclose vital evidence in the death riddle of spy Gareth Williams.

Win a motion-activated outdoor security camera worth £119

When you're asleep or away from your house, do you worry about looking after your property? What are you doing to protect against vandalism, break-ins, or car and garden theft?

The latest of the Asterix films,starring Gérard Depardieu, left, could be destroyed in the dispute

Asterix and the big fight to save 36 French films

An unwelcome silence threatens the next film of the French actor, Jean Dujardin, whose silent movie, The Artist, is wowing audiences around the globe.

Intel warns of diluted profits as Thai floods hit its supplies

The computing giant Intel Corp has become the latest technology firm to warn its profits will take a hit because of the continued fallout from Thailand's autumn floods.

Market Report: Pace switched on by good news from US supplier

Punters were plugging back into Pace yesterday as the beleaguered set-top box maker – which has issued three profit warnings in a year – was finally on the receiving end of some good news.

The Misogynist, By Piers Paul Read

Over 30 years on from his 1979 bestseller A Married Man, Piers Paul Read revisits the mid-life crisis. Geoffrey Jomier is a retired barrister living in Hammersmith.

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Independent Travel
Pompeii, Capri & the Bay of Naples
Dubrovnik, the Dalmatian Coast & Montenegro
Burgundy, the River Rhone & Provence
Lisbon, Oporto and the Douro Valley
Lake Garda, Venice & Verona
Spain
Prices correct as of 23 January 2015
Syria crisis: Celebrities call on David Cameron to take more refugees as one young mother tells of torture by Assad regime

Celebrities call on David Cameron to take more Syrian refugees

One young mother tells of torture by Assad regime
The enemy within: People who hear voices in their heads are being encouraged to talk back – with promising results

The enemy within

People who hear voices in their heads are being encouraged to talk back
'In Auschwitz you got used to anything'

'In Auschwitz you got used to anything'

Survivors of the Nazi concentration camp remember its horror, 70 years on
'I'm gay, and plan to fight military homophobia'

'I'm gay, and plan to fight military homophobia'

Army general planning to come out
Autumn/winter menswear 2015: The uniforms that make up modern life come to the fore

Autumn/winter menswear 2015

The uniforms that make up modern life come to the fore
Iraq invasion 2003: The bloody warnings six wise men gave to Tony Blair as he prepared to launch poorly planned campaign

What the six wise men told Tony Blair

Months before the invasion of Iraq in 2003, experts sought to warn the PM about his plans. Here, four of them recall that day
25 years of The Independent on Sunday: The stories, the writers and the changes over the last quarter of a century

25 years of The Independent on Sunday

The stories, the writers and the changes over the last quarter of a century
Homeless Veterans appeal: 'Really caring is a dangerous emotion in this kind of work'

Homeless Veterans appeal

As head of The Soldiers' Charity, Martin Rutledge has to temper compassion with realism. He tells Chris Green how his Army career prepared him
Wu-Tang Clan and The Sexual Objects offer fans a chance to own the only copies of their latest albums

Smash hit go under the hammer

It's nice to pick up a new record once in a while, but the purchasers of two latest releases can go a step further - by buying the only copy
Geeks who rocked the world: Documentary looks back at origins of the computer-games industry

The geeks who rocked the world

A new documentary looks back at origins of the computer-games industry
Belle & Sebastian interview: Stuart Murdoch reveals how the band is taking a new direction

Belle & Sebastian is taking a new direction

Twenty years ago, Belle & Sebastian was a fey indie band from Glasgow. It still is – except today, as prime mover Stuart Murdoch admits, it has a global cult following, from Hollywood to South Korea
America: Land of the free, home of the political dynasty

America: Land of the free, home of the political dynasty

These days in the US things are pretty much stuck where they are, both in politics and society at large, says Rupert Cornwell
A graphic history of US civil rights – in comic book form

A graphic history of US civil rights – in comic book form

A veteran of the Fifties campaigns is inspiring a new generation of activists
Winston Churchill: the enigma of a British hero

Winston Churchill: the enigma of a British hero

A C Benson called him 'a horrid little fellow', George Orwell would have shot him, but what a giant he seems now, says DJ Taylor
Growing mussels: Precious freshwater shellfish are thriving in a unique green project

Growing mussels

Precious freshwater shellfish are thriving in a unique green project