15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London. © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London. © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Facilitator at collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Facilitator at collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Facilitator at collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

15-07-2017 Momentum Hackathon. Collaborative election software development workshop, Shoreditch, London © Philip Wolmuth

30-06-2014 A teenager clicking like on the UKIP Party Facebook profile. As Facebook admits manipulating its social network users emotions through the content it put in their news feeds © Timm Sonnenschein

30-06-2014 A teenager clicking like on the UKIP Party Facebook profile. As Facebook admits manipulating its social network users emotions through the content it put in their news feeds © Timm Sonnenschein

30-06-2014 A teenager clicking like on the Conservative Party Facebook profile. As Facebook admits manipulating its social network users emotions through the content it put in their news feeds © Timm Sonnenschein

30-06-2014 A teenager clicking like on the Conservative Party Facebook profile. As Facebook admits manipulating its social network users emotions through the content it put in their news feeds © Timm Sonnenschein

30-06-2014 A teenager clicking like on the Conservative Party Facebook profile. As Facebook admits manipulating its social network users emotions through the content it put in their news feeds © Timm Sonnenschein

30-06-2014 A teenager clicking like on the UKIP Party Facebook profile.  As Facebook admits manipulating its social network users emotions through the content it put in their news feeds. © Timm Sonnenschein

30-06-2014 A teenager clicking like on the Conservative Party Facebook profile.  As Facebook admits manipulating its social network users emotions through the content it put in their newsfeeds. © Timm Sonnenschein

09-08-2013 Menwith Hill RAF base in North Yorkshire is part of a global network used to spy on all forms of international telecommunications. It is run by the US National Security Agency (NSA) and is the largest... © Philip Wolmuth

09-08-2013 Menwith Hill RAF base in North Yorkshire is part of a global network used to spy on all forms of international telecommunications. It is run by the US National Security Agency (NSA) and is the largest... © Philip Wolmuth

09-08-2013 Menwith Hill RAF base in North Yorkshire is part of a global network used to spy on all forms of international telecommunications. It is run by the US National Security Agency (NSA) and is the largest... © Philip Wolmuth

09-08-2013 Menwith Hill RAF base in North Yorkshire is part of a global network used to spy on all forms of international telecommunications. It is run by the US National Security Agency (NSA) and is the largest... © Philip Wolmuth

09-08-2013 Menwith Hill RAF base in North Yorkshire is part of a global network used to spy on all forms of international telecommunications. It is run by the US National Security Agency (NSA) and is the largest... © Philip Wolmuth

01-07-2013 Government Communications Headquarters (GCHQ), Cheltenham, Gloucestershire. The UK Intelligence Agency intended to gather information on international terrorism and serious organised crime. © John Harris

01-07-2013 Government Communications Headquarters (GCHQ), Cheltenham, Gloucestershire. The UK Intelligence Agency intended to gather information on international terrorism and serious organised crime. © John Harris

01-07-2013 Government Communications Headquarters (GCHQ), Cheltenham, Gloucestershire. The UK Intelligence Agency intended to gather information on international terrorism and serious organised crime. © John Harris

01-07-2013 Government Communications Headquarters (GCHQ), Cheltenham, Gloucestershire. The UK Intelligence Agency intended to gather information on international terrorism and serious organised crime. © John Harris

07-05-2010 The press waiting for the Prime Minister to come out of 10 Downing Street and give a speech. General Election 2010, London. © Justin Tallis

21-01-2010 President Evo Morales inauguration day at the sacred site of Tiwanaku, Bolivia. Morales is the first indigenous President of the country, and an estimated 50,000 indigenous people from the whole count... © Boris Heger

22-10-2008 Health Minister Phil Hope MP with Angela Appleton, planning manager, in an ultra-clean theatre, as he opens St Helens Hospital, Merseyside, the 100th hospital scheme built under the 2000 NHS Plan. © Paul Herrmann

22-10-2008 Health Minister Phil Hope MP with Angela Appleton, planning manager, in an ultra clean theatre, as he opens St Helens Hospital, the 100th hospital scheme built under the 2000 NHS Plan. © Paul Herrmann

22-10-2008 Health Minister Phil Hope MP is examined by sonographer Karen Pike, as he opens St Helens Hospital, Merseyside, the 100th hospital scheme built under the 2000 NHS Plan. © Paul Herrmann

22-10-2008 Health Minister Phil Hope MP is examined by sonographer Karen Pike, as he opens St Helens Hospital, Merseyside, the 100th hospital scheme built under the 2000 NHS Plan. © Paul Herrmann

22-10-2008 Health Minister Phil Hope MP is shown a new medical scanner by radiographer Gill Holroyd as he opens St Helens Hospital, Merseyside, the 100th hospital scheme built under the 2000 NHS Plan. © Paul Herrmann

20-04-2001 The American early warning radar station in farmland at Menwith Hill, near Harrogate, North Yorkshire © Paul Herrmann

20-04-2001 The American early warning radar station in farmland at Menwith Hill, near Harrogate, North Yorkshire © Paul Herrmann

03-10-1987 Labour Party AEU union delegate Bill Jordon at the Labour Party Conference in 1987 with an early model of a mobile telephone and a filofax. © Stefano Cagnoni

11-01-1985 Sir William Penney, nuclear physicist, 1985. Australian High Commission, London, Press conference. nuclear physicist who led development of the British atomic bomb, with a map of Australia where the b... © Ray Rising

10-11-1983 Clive Sinclair, Harold Macmillan with a Spectrum ZX computer, 1983 London, launch of new educational software Science Horizons Survival, a ZX Spectrum computer game developed by Five Ways Software and... © NLA

22-10-1980 Margaret Thatcher at the Royal Institution 1980 Mayfair, London © NLA

28-06-1967 Dorothy Crowfoot Hodgkin speaking, Conway Hall, London 1967 meeting on the Abuse of Science in the Vietnam War © Patrick Eagar

28-06-1967 Dorothy Crowfoot Hodgkin speaking, Conway Hall, London 1967 meeting on the Abuse of Science in the Vietnam War © Patrick Eagar

28-06-1967 Dorothy Crowfoot Hodgkin speaking, Conway Hall, London 1967 meeting on the Abuse of Science in the Vietnam War © Patrick Eagar