Study finds that anger spreads further than joy on social networks

Study finds that anger spreads further than joy on social networks

Want to get your message heard on a social network? Try raging about it. China’s Beihang University has published a study of Sina Weibo users which suggests that anger-fueled online posts have more of an influence than those reflecting other emotions. During the research period, a typical bitter comment would affect posts three degrees removed from the original; joy had a muted impact, while disgust and sadness hardly got any traction. Don’t be too quick to lament the human condition, though. As researchers note, many of the angry posts were triggered by politics in Weibo’s native China. There’s a chance that internet denizens on other social networks have a rosier outlook on life.

[Image credit: Wayne Marshall, Flickr]

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Via: MIT Technology Review

Source: Cornell University Library

Gearlike legs propel the plant hopping Issus to nearly 400 G’s

For the first time in nature, an insect has been shown to use a set of gears to aid in jumping. Said insect is the Issus coleoptratus and it can be found throughout Europe as well as in parts of the Near East and North Africa. This particular incest is a planthopper found mostly on […]

Scientists accidentally create the world’s thinnest glass and earn a world record

It’s not uncommon in science for scientists to make major discoveries accidentally. One of the most recent accidental discoveries ended up being the world’s thinnest glass. The glass is thin enough to earn the scientists a place in the 2014 edition of the Guinness Book of World Records. The scientists who accidentally made the incredibly […]

MIT Has Taught Incompetent Robots How To Ask For Help

Well, well, well. They were more than happy to take all of our best assembly line and theme park greeter jobs, but now—thanks to researchers at MIT—the robots of the world have learned how to ask humans for help. Soon they’ll be pleading with the creators they’ve vowed to replace, in plain English, for assistance with tasks they just can’t seem to master on their own.

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NATO Built a Real-Life Electromagnetic Ray Gun to Stop Suicide Bombers

In an attempt to thwart and discourage the use of cars and other vehicles in suicide bombing attacks, NATO has been funding the development of a compact electromagnetic jammer that can safely cause an engine to cut out before a bomber reaches their target.

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Researchers Found a Way To Make Announcements Quieter But Clearer

Researchers Found a Way To Make Announcements Quieter But Clearer

There’s an endless list of annoyances that make air travel unenjoyable, the least of which being the nonstop blaring airport announcements you have to endure while waiting for your flight. So hats off to a team of researchers from the University of Edinburgh in Scotland who’ve developed a filter that can make speech blasted over a loudspeaker easier to understand over background noise, but also quieter.

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A 10-Second Bomb-Defusing Game Puts Red Wire/Blue Wire in Your Hands

For a coding contest where competitors had a limited amount of time to come up with a novel game that plays out in just 10 seconds, SassyBot Studio created this stressful-looking bomb defusing challenge that has players trying to figure out what wire to snip.

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Mischief managed: researchers produce an invisibility cloak in just 15 minutes

DNP invisibility cloak

Grab your Marauder’s Map and get ready to roll. Researchers at Zhejiang University in China have pioneered a new, time-efficient method of producing real world invisibility cloaks made out of Teflon. While it isn’t the first time we’ve come across an invisibility cloak, it is the first to make use of an innovation called topology optimization. Thus far, physicists working on invisibility have largely relied on metamaterials — synthetic materials that alter the behavior of light as it interacts with objects — but the cost and difficulty of manufacturing them has made them an impractical option. The Zhejiang team has circumvented those obstacles by creating a so-called “eyelid” out of Teflon, the computer-altered topology of which minimizes the distortion of light as it moves past a cloaked object — and it only took 15 minutes to produce. Since the Teflon eyelid is only invisible to microwaves, it won’t enable you to roam the halls of Hogwarts unseen, but the technology could potentially open up new avenues in exploring invisibility on other wavelengths. To learn more, read the full paper at the source link below.

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Via: MIT Technology Review

Source: arXiv (PDF)

A Shock-Absorbing Airless Tire That Will Never Go Flat

A Shock-Absorbing Airless Tire That Will Never Go Flat

Inspired by Bridgestone’s puncture-proof tires, and Michelin’s Tweel, Hankook has decided that it wants to get into the next-generation tire market with its own i-Flex. Like the previous creations from its competitors, Hankook’s tire trades an air-filled bladder that’s prone to leaks and punctures for an engineered rubber framework that provides support and shock absorption.

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Mars One gets over 200,000 one-way astronaut applications

Over 200,000 would-be space explorers applied for the first round of Mars One‘s Astronaut Selection Program, though there’s still several years – and a few more screenings – before the mission goes ahead. Not-for-profit Mars One opened up for applications earlier this year, offering the chance of a one-way trip from Earth to the red […]