Nagesh Pai

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The Rise Of Bitcoin: Is It A Solution Or Menace?

She got her first taker in mid-November. She hopes it's the dawn of more demand. But Ms. Sotelo says she is also a little worried because, frankly, she doesn't fully understand Bitcoin yet.<p>"I used the phone app and pushed the right buttons, but I'm a little freaked out," Sotelo says after the …

NSA Has 50,000 ‘Digital Sleeper Agents’ Via Computer Malware, Says Latest Snowden Leak

Sleeper agents are among the most sinister spy assets: they lie in wait, wolves in sheep’s clothing, and then deliver a critical blow when activated. The NSA has 50,000 of those waiting for the literal push of a button, according to the latest batch of leaked Snowden documents, as seen by Dutch …

Chris Hadfield's photographs of Earth from space – in pictures

http://www.theguardian.com/science/gallery/2013/may/13/chris-hadfield-space-in-pictures<p>720<p>During his five months in space onboard the International …

Know Before You Go: Paris

If Paris is a croissant, crafted with immeasurable pride, kneaded by the hands of many, some visitors only get a taste of the flaky exterior. Whether you’re traveling for a long weekend or coming back for more, here’s a quick primer on getting to, from, and around this iconic city with ease.<p><b>>> When</b> …

What Is It About Bees And Hexagons?

Solved! A bee-buzzing, honey-licking 2,000-year-old mystery that begins here, with this beehive. Look at the honeycomb in the photo and ask yourself: (I know you've been wondering this all your life, but have been too shy to ask out loud ... ) Why is every cell in this honeycomb a hexagon?<p>Bees, …

What, Exactly, Is a 3-D Printer?

You can make anything from a pistol to a doll to an airplane wing. Here's how it works.<p><b>This week a 25-year-old law student at the University of Texas named Cody Wilson made international headlines when he used a 3-D printer to "print out" a functional .38 caliber pistol.</b><p>He then put design software …