Alberto Trombetta

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How mobile phones are making cash obsolete in Africa

When he rolls into a gas station to fill his tank, Barkhad Dahir doesn't get out of his car. He punches a few buttons on his cellphone and within seconds he has paid for the fuel.<p>With the same quick keystrokes on his phone, he pays for virtually everything he needs: groceries at the supermarket, a …

Africa

Alex Honnold's death-defying ropeless cliff climbs

The <i>New York Times</i> profiles 29 year old Alex Honnold, who climbs sheer cliffs without using ropes.<p>Climbers know that fear itself can cause a climber …

Climbing

The strange world of computer-generated novels

Welcome to National Novel Generation Month, where the algorithm is the author<p>It’s November and aspiring writers are plugging away at their novels for National Novel Writing Month, or NaNoWriMo, an annual event that encourages people to churn out a 50,000-word book on deadline. But a hundred or so …

[0910.1952] Elementary Surprises in Projective Geometry

Mathematics > Differential Geometry<p>Title: Elementary Surprises in Projective Geometry<p>Abstract: We discuss eight new(?) configuration theorems of …

15 Insanely Great Bruce Springsteen Songs You've Never Heard

Listen to the best unreleased treasures of Springsteen's catalog<p>'Lonely Night in the Park' (1974)<p>There was no Bruce Springsteen album in 1974, but he …

Is technology making the world indecipherable? – Samuel Arbesman

Despite the vastness of the sky, airplanes occasionally crash into each other. To avoid these catastrophes, the Traffic Alert and Collision Avoidance …

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Colorful Data Visualizations of Mathematical Constants Pi, Phi, and e

Cristian Ilies Vasile and Martin Krzywinski created a series of data visualizations based on the digits of mathematical constants Pi, Phi (the golden …

Mathematics

The Rise of Big Data

Everyone knows that the Internet has changed how businesses operate, governments function, and people live. But a new, less visible technological …

An Illustrated Tour of All the Buildings in New York

New York City has served as a muse to such literary greats as Gay Talese, Anaïs Nin, E. B. White, and Jan Morris. It has been the subject of cartographic love letters and famous diaries. And yet the essence of its spirit remains ever-elusive.<p>A couple of years ago, Australian illustrator James …