America Offline? 15 Percent of US Adults Don't Use the Internet
No internet sign.
July 30th, 2015
That's right: There are Americans who have never seen an Internet cat video.
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Delivery Drones Could Be on Your Doorstep in a Decade, Google Says
google delivery drone
July 29th, 2015
Google's Project Wing could be delivering products to your doorstep in a decade with the help of two-way cellular communication systems.
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Dark Pion Particles May Explain Universe's Invisible Matter
Researchers propose that dark matter is a kind of invisible, intangible version of a pion, or a type of meson — a category of particles made up of quarks and antiquarks.
July 25th, 2015
Dark matter is the mysterious stuff that cosmologists think makes up 85 percent of matter in the universe. A new theory says dark matter might resemble a known particle. If true, it would open up a window onto an invisible, dark matter version of physics.
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Best Period-Tracking Apps
A woman looks at her phone.
July 30th, 2015
The days of using pen and paper to keep track of menstrual cycles are past -- apps for period tracking have proliferated. Here are our picks for the best period-tracking apps.
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Stephen Hawking on Reddit: Ask Him a Question on Artificial Intelligence
Stephen Hawking
July 27th, 2015
Got questions about artificial intelligence? Stephen Hawking has answers.
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Why Pendulum Clocks Mysteriously Sync Up
Pendulum clocks swinging in exactly the opposite direction from each other.
July 23rd, 2015
The 350-year-old mystery of why pendulum clocks hanging from the same wall synchronize over time may finally be solved, scientists say.
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No Humans Allowed! Test 'City' for Driverless Cars Opens
Mcity street view.
July 20th, 2015
Imagine a town with crosswalks but no pedestrians, cars and trucks but no drivers. Welcome to Mcity, a fake "town" built by researchers who are testing out the driverless cars of the future.
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Shake, Rattle and Build: Colliding Bricks Self-Assemble Into Objects
Self-Assembling Bricks
July 30th, 2015
Scientists shook "bricks" in a spinning chamber, and for the first time, showed that artificial building blocks can put themselves together just by banging around at random.
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Ban Killer Robots Before They Take Over, Stephen Hawking & Elon Musk Say
killer robot
July 27th, 2015
A number of prominent scientists have signed on to a letter warning that autonomous weapons should be banned.
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Lasers Could Blast Tiny Spacecraft to the Stars
Laser sail
July 21st, 2015
Blasting tiny, waferlike sailing spacecraft with powerful lasers could slash interstellar flight times from thousands of years to mere decades, one researcher says.
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