In what’s been a closely guarded family secret, the late Walmart heir John Walton gave half of his then-$17 billion estimated fortune to charitable trusts and a third to their only child, Lukas Walton, now 29, an analysis of court documents reveals. His wife Christy got the rest.

Ever since Walmart heir John T Walton died 10 years ago in a plane crash, it has been widely assumed that he passed the bulk of his vast estate to (...)

Tommy Furey of the Marine Institute onboard the Celtic Explorer with maps of mountains in the Atlantic Ocean. Ireland is leading the world in deep-sea mapping. Photograph: Andrew Downes/XPOSURE

The Earth’s oceans cover about 70 per cent of the surface of the planet. Human beings have explored only 10 per cent. The deepest oceans are largel(...)

Google chief executive Larry Page: will the creation of Alphabet really allow him and his colleagues to focus on the group’s productive future? Photograph: Eduardo Munoz/Reuters

Explaining the unboxing of Alphabet, the new parent company of Google, Larry Page, its chief executive, said appointing someone else to run the search(...)

Bruce Schneier: “We’re all open books to both governments and corporations; their ability to peer into our collective personal lives is greater than it has ever been before”

A decade ago, the Irish Council for Civil Liberties cautioned that the mobile phone was in essence, the equivalent of a personal tracking device, reco(...)

Former Florida governor and potential Republican presidential candidate Jeb Bush speaks to German chancellor Angela Merkel  after he addressed the Christian Democratic Union (CDU) party economic council in Berlin. Photograph: Fabrizio Bensch/Reuters

Former Florida governor Jeb Bush has praised Germany’s ruling Christian Democratic Union (CDU) for its fiscal discipline and demanded a tougher intern(...)

Will it be Woz? Apple co-founder Steve Wozniak is on the shortlist to be immortalised in wax at San Francisco’s Madame Tussauds. Photograph: Tony Avelar/Bloomberg News

Some of Silicon Valley’s most prominent technology figures have been waxing lyrical on Twitter this past week. Or at least, they’ve been getting excit(...)

Microsoft chairman Bill Gates and his wife, Melinda, who have been married for 21 years. Photograph: Elaine Thompson/AP Photo

To be a billionaire, the first thing you need is a personality disorder.That is what I had always assumed, based on my own experience of having interv(...)

The Google building at Barrow street, Grand Canal Dock, Dublin Photograph: Eric Luke / The Irish Times

The private lunch in Brussels, a week before Christmas Day in 2012, had an almost celebratory air. Google chairman Eric Schmidt and then-European comp(...)

Google chairman Eric Schmidt: “I’m not a dystopian. I’m a utopian, and I believe technology will make us happier and the world a greater place.”  Photograph: Victor J Blue/Bloomberg

Society shouldn’t fear the rise of artificial intelligence or robots, according to the executive chairman of Google, Eric Schmidt. Speaking as part o(...)

Al Gore addresses the SXSW Interactive Festival in Austin, Texas

Former Vice President Al Gore opened proceedings at the SXSW Interactive event in Austin yesterday by calling on SXSW to channel its tech and online a(...)