Isaac Newton

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The growth rate in Twitter users has fallen in every quarter since Twitter’s market debut 21 months ago.

Last week was another lousy one for Twitter. The stock plunged 14 per cent following its earnings report, and is now almost 60 per cent below December(...)

People see shades of 2000 and the dotcom crash in the eye-popping valuations assigned to some tech companies

It is a wild time in Silicon Valley. Two-year-old companies are valued in the billions, ramshackle homes are worth millions and hubris has reached the(...)

James Doyle on Noble Mission comes home to win The Tattersalls Gold Cup at the Curragh last year. Photograph: Lorraine O’Sullivan/Inpho

It is classic weekend at the Curragh but the Group One focus for race-planners at Irish racing’s HQ on Sunday will be firmly directed on the make-up (...)

Hans Holbein (right) ridden by Ryan Moore wins The MBNA Chester Vase. Photograph: Martin Rickett

Hans Holbein leapt into the picture for the Investec Derby when giving trainer Aidan O’Brien a welcome turn of fortunes with an all-the-way success in(...)

 All Hallows College, Dublin: valuer and expert in rare books Owen Felix O’Neill claimed last night the loss to the college amounted to “quite a few million.” Photograph: Cyril Byrne

Gardaí have been called in at All Hallows College, Dublin following the discovery that several very valuable items have gone missing. Fr Patric(...)

Measuring up: With experimentation at the heart of all research, it is rare that the producer knows exactly how a project will turn out

While the modern world of commercially driven research might lead you to believe that most innovators and inventors know exactly what they’re doing, t(...)

Of all Isaac Newton’s gifts to humanity, my personal favourite is his famous turn of phrase, written in a letter to Robert Hooke in 1676: “If I have s(...)

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