GravityLight: the gravity-powered lamp aiming to light the developing world for less

After a successful Indiegogo campaign, the GravityLight is now being mass produced

On climate, we need a global carbon market with its own ‘federal reserve’

Immediate action is more than ever dependent on channeling the private sector

Enter-prize: Host Sue Perkins, left, Independent on Sunday editor Lisa Markwell, right, and Nigel Kershaw, winner of the category sponsored by The IoS

Social Enterprise UK Awards: Prizes for businesses that 'give back'

Awards, sponsored by The IoS, were presented to winners last week

Immigration stats are bad news for the Government, but worse news for Britain

Reducing the number of foreign students runs directly against the UK's best interests

A visa is crucial if you're planning on working abroad - and it can also be necessary even if you're just popping in for a few days

We should be encouraging students to enter Britain, not tightening our visa requirements

Strict visa rules are turning students away

A US Predator drone flies over Kandahar Air Field, southern Afghanistan

Look to the skies: How the drone revolution could be coming to the US

Watch out, within five years 7,500 drones may be plying American airspace

Bitcoin is an experimental digital currency that has gained popularity worldwide

Bitcoin value surpasses $1,000 for first time

The price at which a single unit of the digital currency trades has risen dramatically in recent months

Guardian crossword editor John Graham dies of cancer aged 92 – after announcing illness in puzzle clues

Graham was know to his readers as Araucaria Latin for Monkey Puzzle tree

One billion 4G connections expected for 2017

America is currently the largest user of 4G data in terms of sheer numbers, although South Korea had the highest proportion of population signed up

Protesters in Edinburgh showed what they thought of the Royal Bank of Scotland during the credit crunch in 2008

Derek Sach and RBS: Last of Fred Goodwin’s trusty lieutenants comes under fire over 'restructuring' tactics

Derek Sach placed at heart of the restructuring at RBS that drove viable businesses to the wall

David and Victoria Beckham buy west London home for £40m

The former footballer and Spice Girl are expected to invest £5m on doing the house up to their own specifications

Apple confirms $360m purchase of motion tech specialists PrimeSense

The Israeli based PrimeSense produced the technology for the original Kinect, fuelling rumours that Apple will be introduced gesture-controlled devices

IT firms’ total soars as UK clicks as a tech hub

Britain’s app economy and London’s booming Silicon Roundabout have led to a surge of 37,000 in the number of UK IT companies in the past two years.

Old ties: Ed Miliband talks to former group Co-op chairman Len Wardle in Downing Street in 2010

Exclusive: Ed Miliband says David Cameron's Tories in the gutter as 2015 election strategist Lynton Crosby pushes party towards the politics of division

Labour fears dirtiest Conservative campaign in 20 years, as Attorney General withdraws attack on Pakistani community

Paperback review: British Gothic Cinema, By Barry Forshaw

Fans of Hammer will relish its defence in this erudite survey, particularly against the insistence of Peter Cushing and Christopher Lee that they had merely made “colourful fantasies”. In Forshaw’s view, Curse of Frankenstein is “deeply visceral”, while Dracula is “subversive… perfectly constructed”.

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The clocks go forward an hour at 1am on Sunday 30 March
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The Doctor finds himself in a forest version of London in Doctor Who episode 'In the Forest of the Night'
TVReview: Is the Doctor ever going stop frowning? Apparently not.
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Voluminous silk drawers were worn by Queen Victoria
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footballMatch report: Real fight back to ruin Argentinian's debut
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Candidates with surnames that start with an A have an electoral advantage
newsVoters are biased towards names with letters near start of alphabet
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Isis with Lord Grantham (Hugh Bonneville)
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Arts and Entertainment
Jay James
TVReview: Performances were stale and cheesier than a chunk of Blue Stilton left out for a month
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Berlin, Dresden, Meissen & Colditz
Prices correct as of 17 October 2014
Wilko Johnson, now the bad news: musician splits with manager after police investigate assault claims

Wilko Johnson, now the bad news

Former Dr Feelgood splits with manager after police investigate assault claims
Mark Udall: The Democrat Senator with a fight on his hands ahead of the US midterm elections

Mark Udall: The Democrat Senator with a fight on his hands

The Senator for Colorado is for gay rights, for abortion rights – and in the Republicans’ sights as they threaten to take control of the Senate next month
New discoveries show more contact between far-flung prehistoric humans than had been thought

New discoveries show more contact between far-flung prehistoric humans than had been thought

Evidence found of contact between Easter Islanders and South America
Cerys Matthews reveals how her uncle taped 150 interviews for a biography of Dylan Thomas

Cerys Matthews on Dylan Thomas

The singer reveals how her uncle taped 150 interviews for a biography of the famous Welsh poet
DIY is not fun and we've finally realised this as a nation

Homebase closures: 'DIY is not fun'

Homebase has announced the closure of one in four of its stores. Nick Harding, who never did know his awl from his elbow, is glad to see the back of DIY
The Battle of the Five Armies: Air New Zealand releases new Hobbit-inspired in-flight video

Air New Zealand's wizard in-flight video

The airline has released a new Hobbit-inspired clip dubbed "The most epic safety video ever made"
Pumpkin spice is the flavour of the month - but can you stomach the sweetness?

Pumpkin spice is the flavour of the month

The combination of cinnamon, clove, nutmeg (and no actual pumpkin), now flavours everything from lattes to cream cheese in the US
11 best sonic skincare brushes

11 best sonic skincare brushes

Forget the flannel - take skincare to the next level by using your favourite cleanser with a sonic facial brush
Paul Scholes column: I'm not worried about Manchester United's defence - Chelsea test can be the making of Phil Jones and Marcos Rojo

Paul Scholes column

I'm not worried about Manchester United's defence - Chelsea test can be the making of Jones and Rojo
Frank Warren: Boxing has its problems but in all my time I've never seen a crooked fight

Frank Warren: Boxing has its problems but in all my time I've never seen a crooked fight

While other sports are stalked by corruption, we are an easy target for the critics
Jamie Roberts exclusive interview: 'I'm a man of my word – I'll stay in Paris'

Jamie Roberts: 'I'm a man of my word – I'll stay in Paris'

Wales centre says he’s not coming home but is looking to establish himself at Racing Métro
How could three tourists have been battered within an inch of their lives by a burglar in a plush London hotel?

A crime that reveals London's dark heart

How could three tourists have been battered within an inch of their lives by a burglar in a plush London hotel?