Aviva Rutkin, Author at New 女生小视频 Science news and science articles from New 女生小视频 Sun, 12 Jul 2026 11:21:28 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 242057827 Augmented reality set to overtake VR as new apps go live /article/2116086-augmented-reality-set-to-overtake-vr-as-new-apps-go-live/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Wed, 14 Dec 2016 18:00:00 +0000 http://mg23231044.600 AR
What鈥檚 real, what鈥檚 not?
Coneyl Jay/Futurematic/Getty

You鈥檙e at work, flipping through emails that hang in mid-air. Graphs, text messages and pictures pop up on your desk, then disappear. Bored, you sit back and watch a jellyfish bob across the ceiling.

This is augmented reality 鈥 real life only better, bedazzled with digital displays. AR is the next futuristic fantasy the tech industry wants to conquer, and in 2017 it may finally happen.

You can watch demo of the above scene courtesy of secretive Florida start-up Magic Leap. This shows a head-mounted display overlaying surroundings with a broad array of eye-popping graphics 鈥 including a game in which you shoot enemy robots as they pop up around you. The release date for Magic Leap鈥檚 technology is still unknown 鈥 it may be a few years off yet 鈥 but you can already get a taste of some AR experiences.

This year, California-based developer Niantic released the AR smartphone game Pok茅mon Go and Microsoft started shipping the HoloLens, a headset that lets you interact with digital displays only you can see. You could also pick up Lenovo鈥檚 Phab 2 Pro, the first phone to use Google鈥檚 Tango AR platform. Tango apps include an AR tape measure tool, a solar system simulator and a shopping tool that lets you see how furniture would look in your home.

鈥淵our surroundings will be overlaid with eye-popping graphics鈥

AR enthusiasts envisage the technology being used in the workplace, as well as just for fun. Factory workers could learn to use a new machine with a hands-on tutorial, architects could walk through their vision for a restored building, and police officers could get a different perspective on a crime scene. Meanwhile, gamers could play on battlefields that appear right around them rather than on screen.

But like any invention, AR might take a while to get used to. Pok茅mon Go already upset some people who didn鈥檛 want the animated monsters popping up in homes, museums or cemeteries.

Expect such issues to crop up again as we work out the rules for what we do and don鈥檛 accept in the AR world. In the meantime, keep your eyes peeled for things that don鈥檛 quite belong.

This article appeared in print under the headline 鈥淩eal life gets an upgrade鈥

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Baxter robot beats humans at noughts and crosses by multitasking /article/2115015-baxter-robot-beats-humans-at-noughts-and-crosses-by-multitasking/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Wed, 07 Dec 2016 18:00:00 +0000 http://mg23231030.300 robot
Your turn, Baxter
Clement Olalainty

YOUR move, human. This robot is preparing to deal with the world by learning to play noughts and crosses.

Also known as tic-tac-toe, the game requires players to take turns drawing Xs or Os on a grid in a race to get three of their markers in a row. It鈥檚 a simple affair compared with other games mastered by artificial intelligence in recent years, such as Go and Jeopardy. But teaching a physical robot to play is trickier.

at the University of Lincoln in the UK and his colleagues saw the paper-and-pencil puzzle as an opportunity to train a humanoid robot in multiple skills at once using deep learning.

The robot wasn鈥檛 preprogrammed to make the decisions or actions needed to win the game. To play successfully, it needed to figure out how to perceive its surroundings, understand verbal instructions and interact appropriately with its environment. Essentially, it had to use different senses to make a judgement about how it should behave and then act accordingly.

鈥淔or a robot to learn what to do and say, based on what was heard and seen, is not a trivial task,鈥 says Cuayahuitl.

These skills aren鈥檛 just for fun. Any robot destined to work alongside humans in daily life will need to be able to take in different types of information and make appropriate choices based on what it learns.

The team worked with humanoid robot Baxter, developed by Rethink Robotics in Boston. They equipped Baxter with software and sensors so it could see its surroundings, recognise speech, move its head to follow the gaze of the other player and move its arm to draw its own noughts or crosses in the grid.

The robot could also serve up a handful of preprogrammed comments at appropriate moments, such as 鈥淚 take this one鈥 when it claimed a box on the grid, and 鈥淵es, I won!鈥

鈥淎 robot must be able to make appropriate choices if it is to work alongside humans in daily life鈥

Seven humans took turns playing with Baxter, which always selected to play noughts over crosses when it started a round. Deep learning algorithms helped it improve its game, as it figured out how to better perceive and respond to the humans鈥 actions. In the end, it won or tied 98 per cent of the time.

The work is being presented this week at the conference on Neural Information Processing Systems in Barcelona, Spain.

Down the line, Cuayahuitl鈥檚 team thinks their system can help efficiently train interactive robots. Future versions of their experiment may attempt broader conversations with humans, or take on more complicated games. The team is also planning to teach the robot to take its opponents鈥 emotions into account, so instead of winning every time, it could aim to perform in a way that makes its opponent happiest.

鈥淭he idea is to endow robots with the ability to develop and/or improve their own behaviours over time,鈥 says Cuayahuitl.

This article appeared in print under the headline 鈥淭ic-tac-toebot鈥

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Lazy coders are training artificial intelligences to be sexist /article/2115175-lazy-coders-are-training-artificial-intelligences-to-be-sexist/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS /article/2115175-lazy-coders-are-training-artificial-intelligences-to-be-sexist/#respond Mon, 05 Dec 2016 18:44:40 +0000 /?post_type=article&p=2115175
A woman flits between three tables of vintage items
Vintage sexism can show up in modern algorithms
Martyn Goddard/REX/Shutterstock

Employers: do the ladies on your payroll have any 鈥渇emale weaknesses鈥 that would make them mentally or physically unfit for the job?

The question comes to you courtesy of the year 1943. It was posed in a , written for the flummoxed male supervisors at Transportation Magazine tasked with integrating a new female workforce during a wartime shortage of manpower.

Back then, you wouldn鈥檛 be surprised to see logical reasoning like 鈥淢en are to programmers as women are to homemakers鈥. Or 鈥淢en are to surgeons what women are to nurses鈥. Or 鈥淢en are bosses. Women are receptionists鈥.

But to have these associations littering software in 2016? That鈥檚 exactly what at Microsoft Research and his colleagues found at the Fairness, Accountability, and Transparency in Machine Learning workshop in New York City. The group let a data mining algorithm loose on Google news articles, where it examined the word associations it found there. When they scoured the associations it had come up with, they discovered a trove of familiar stereotypes coded into occupations, with some weighed heavily as either masculine or feminine. The sexism was straight out of the 1943 playbook, with jobs ranked as male including philosopher, captain, warrior and boss. The top jobs on the 鈥渟he鈥 end of the spectrum? Homemaker, nurse and receptionist.

It鈥檚 tempting to throw your hands up and blame sexism in the tech industry, but the story is more subtle than that. The problem is partly down to the way computers learn our language 鈥 and all the inadvertent sexist, racist and otherwise unsavory predispositions it carries.

Picasso = painter

When we humans hear a word like 鈥渞ose鈥, it might elicit a rush of related memories and associations: romance, the color red, Shakespeare鈥檚 famous line.

But for a machine, there aren鈥檛 many clues about meaning in the arrangement of a handful of letters. So, to help computers form associations, programmers often turn to a popular technique called 鈥渨ord-embedding鈥. The computer crunches through a pile of text, mapping words as 鈥渧ectors鈥 that demonstrate their relationships to each other.

Through these maps, machines can learn the subtle linguistic links that come intuitively to humans. For example, a king and a queen pair together 鈥 they鈥檙e both royalty 鈥 but one is male and the other female. It鈥檚 similar for uncle and aunt. Einstein was the scientist and Picasso the painter. Beijing is probably the capital of China, not Germany. Pile all these relationships together, and you鈥檝e got some semblance of meaning.

Inevitably, less agreeable associations are also hiding in those calculations, and these are what Kalai has been hunting. He thinks it鈥檚 valuable to find these flaws, because technology has so much power to amplify our stereotypes. Imagine, for example, that you鈥檙e doing a web search for 鈥淐MU computer science phD student鈥. The search engine wants to give you the most relevant results, so perhaps it decides to show you links to male students first, sidelining women to the second page. In an unfortunate loop, this also makes women look even less likely to be programmers, reinforcing the bias.

This mechanism can launder a multitude of sins. In of word-embeddings, and his colleagues at Princeton University looked at how closely words were associated with pleasant terms (鈥渓ove鈥, 鈥減eace鈥, 鈥渉appy鈥) and unpleasant ones (鈥渄eath鈥, 鈥渄isaster鈥, 鈥渧omit鈥). Flowers, for example, mapped more closely to pleasant words, while insects related more closely to the unpleasant. Musical instruments ranked as more pleasant than weapons.

Again, worrisome relationships surfaced. Female names were more closely associated with home and the arts, while male names dovetailed with career and mathematics. It wasn鈥檛 just sexism: European-American names (Adam, Stephanie, Greg) ranked as more 鈥減leasant鈥 than African-American names (Darnell, Yolanda). 鈥淲e have found every linguistic bias we looked for,鈥 they write.

Lazy bias

What should we make of findings like these? Well, in short, even the most unbiased algorithm is going to flag up the biases of a slanted culture. If you don鈥檛 take steps to remove it, you should assume prejudice is well-represented in all your software. Worse: if you don鈥檛 get rid of it, the glossy appearance of impartiality conferred by search engines and algorithms could actually amplify our subtle biases, Kalai says.

It鈥檚 a lesson we keep having to re-learn. We learned it when it came out that Google serves higher-paying job ads to men, or that Uber drivers cancel more often on riders of colour, or that artificially intelligent hiring programs or sentencing programs might carry historical baggage.

So how do we get rid of it? It鈥檚 less about stamping out prejudice than about not being lazy, says , a web developer in San Francisco. His imaginary culprits are tech bros 鈥淐had and Brad鈥 鈥 鈥渕ental shorthand for developers who are just trying to crush out some code on deadline, and don鈥檛 think about the wider consequences of their actions,鈥 explained Ceg艂owski at a talk this month at the Direction16 conference in Sydney, Australia. They don鈥檛 mean to algorithmically punish you for being female or having an ethnic name or living in a low-income neighborhood. They were just hustling to push a product out. 鈥淭he tech industry slaps this stuff together in the expectation that the social implications will take care of themselves.鈥

Perhaps we could make algorithms that can strip these mistakes back out of software. Kalai鈥檚 group has come up with tools to tweak the word maps without losing much of the original meaning. For example, certain words could be reset to gender-neutral. Other words, like 鈥済randma鈥 and 鈥済randpa鈥, could be 鈥渆qualised鈥, making them more similar in meaning without losing the gender essential to their definition.

Their group is hopeful, and maybe we can be too. After all, we know to laugh ruefully when we see the language of 1943. Maybe we can teach our machines the same trick.

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Bacteria taught to bond carbon and silicon for the first time /article/2114054-bacteria-taught-to-bond-carbon-and-silicon-for-the-first-time/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS /article/2114054-bacteria-taught-to-bond-carbon-and-silicon-for-the-first-time/#respond Thu, 24 Nov 2016 19:00:05 +0000 /?post_type=article&p=2114054 A shadowy figure stands in front of an array of square lights
What would silicon-based life be like? A new protein might help us find out
Jasper Juinen/Bloomberg via Getty

Proteins solve problems. By guiding evolution along, scientists have created a protein that can bond carbon to silicon. This innovation could transform how we make a broad array of products, from drugs to LED lights, semiconductors and computer screens.

Silicon is the second most abundant element in Earth鈥檚 crust, but it doesn鈥檛 naturally bond to carbon. That means manufacturers must turn to artificial methods to make compounds combining the two, which are called organosilicons and feature in materials including adhesives and silicone coatings.

It would be more sustainable and perhaps cheaper to create the same bonds with biology, says at the California Institute of Technology in Pasadena. But until now, scientists have been unable to find or produce such a reaction in nature.

She and her colleagues have now unveiled a protein that does the job. The team created it using a process of artificial selection called directed evolution, and it outperforms all other existing methods of bonding the two elements.

鈥淚t鈥檚 a wonderful demonstration of how rapidly nature can adapt to solve problems,鈥 says Arnold. 鈥淎ll of this diversity in the natural world is poised to do entirely new chemistry if you provide these new niches, so to speak.鈥

Life, but not as we know it

Arnold and her team started with a protein found in the genomic sequence of Rhodothermus marinus, a bacterium that was originally discovered in Icelandic hot springs. Called cytochrome c enzyme, it typically transports electrons around the cell. But early lab tests suggested that with a little direction, it might be able to create the types of bonds that the researchers were looking for.

They synthesized the protein in E.coli and modified it by randomly mutating its DNA coding. Each time, they selected the most promising candidates and mutated them again. After three rounds of mutations, the protein could bond silicon to carbon 15 times more efficiently than any synthetic catalyst. It鈥檚 also far more reliable and produces fewer unwanted byproducts, and because it is used to tough geothermal environments, it is hardy. 鈥淵ou can boil this protein and it still functions,鈥 says Arnold.

鈥淭his is something that people talk about, dream about, wonder about,鈥 says at the University of California, Davis. She imagines the process could be particularly useful for drug discovery, as organosilicons are used in some pharmaceuticals. 鈥淎ny pharmaceutical chemist could read this on Thursday and on Friday decide they want to take this as a building block that they could potentially use.鈥

The research may also help us answer questions about what silicon-based life forms would look like, says Arnold 鈥 here or on another planet. 鈥淥ne can start to dream about what happens when you put silicon into life.鈥

Science

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Monuments divide the US and Mexico 鈥 one man snapped them all /article/2113589-monuments-divide-the-us-and-mexico-one-man-snapped-them-all/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Wed, 23 Nov 2016 18:00:00 +0000 http://mg23231013.400 US/Mexico boundary

IN 1848, the US and Mexico drew a line. The Guadalupe Hidalgo Treaty 鈥 and then the Gadsden Treaty a few years later 鈥 established an agreement about where the boundary between the two countries lay. Markers made out of stone, marble or iron were placed along the border, spaced a few kilometres apart.

Today, 276 of these obelisks dot the boundary, and thanks to Donald Trump, this strip is more contentious than ever. David Taylor, a photographer in Arizona, first saw one for himself years ago, on a drive out from his then hometown in New Mexico. 鈥淚 was captivated by them,鈥 he says. 鈥淭he monuments have been a witness to our changing national identity.鈥

Taylor made it his mission to visit every single one. On and off over seven years, he explored the 690-mile stretch between the first obelisk near Mount Cristo Rey and the last at Playas de Tijuana. Each was slightly different. One obelisk might be sitting smack in the middle of a busy port of entry, covered in graffiti. Another might be found alone in the Chihuahuan desert, little changed since its installation in the 1800s.

In this photo (top), you see Monument No. 250, located near Ca脩on del Padre beside a 5.5-metre-tall fence. Below is Monument No. 1 on the border of Texas and New Mexico, near the town of El Paso.

border monument

As for Trump鈥檚 wall, Taylor is sceptical. 鈥淭he border is not impermeable. The likelihood that the border is ever going to be impermeable is probably fantasy.鈥

This article appeared in print under the headline 鈥淭he invisible boundary鈥

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GM mosquitoes approved for field trial release in Florida /article/2113627-gm-mosquitoes-approved-for-field-trial-release-in-florida/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS /article/2113627-gm-mosquitoes-approved-for-field-trial-release-in-florida/#respond Tue, 22 Nov 2016 12:12:49 +0000 /?post_type=article&p=2113627
GM mosquito
The offspring of modified mosquitoes die young
Paulo Whitaker/Reuters

Ready or not, here they come. On 19 November, the Florida Keys Mosquito Control District gave the green light to a controversial plan to test genetically engineered male mosquitoes.

The mosquitoes 鈥 developed by UK biotechnology firm Oxitec 鈥 carry a gene that makes their offspring die early. By letting the GM mozzies mate with native female mosquitoes in the wild, the idea is to slash the population of mosquitoes carrying dangerous diseases such as Zika and dengue.

Similar initiatives have already been successful. One trial in Piracicaba, Brazil, also led by Oxitec, reportedly reduced dengue cases by more than 90 per cent.

The Florida trial in Key West would only last a few months, ending when the last of the modified mosquitoes die off. In August, the US Food and Drug Administration approved the plan, saying that it would have 鈥渘o significant impact鈥 on the environment in the long-term.

Floridians, too, have voted in favour of it, endorsing a ballot measure earlier this month.

Local opposition

But in Key Haven, the part of Key West where the trial will occur, 65 per cent of residents oppose the idea.

One , started by a Key West resident, raises concerns that the trial will harm Key Haven鈥檚 environment and residents. It says: 鈥淭here are more questions than answers and we need more testing to be done.鈥

The spread of Zika earlier this year was especially worrying in the state, which 鈥 although none in Key West. Last week, the that Zika is no longer an international public health emergency.

The opposition among Key Haven residents means the Oxitec team may need to find a new location for the trial.

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US healthcare still lags far behind other developed nations /article/2113089-us-healthcare-still-lags-far-behind-other-developed-nations/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS /article/2113089-us-healthcare-still-lags-far-behind-other-developed-nations/#respond Wed, 16 Nov 2016 21:00:05 +0000 /?post_type=article&p=2113089 A chaotic looking hall with rows of tables holding medical instruments and medical professionals in scrubs attending to people
Free health clinics, like the Seattle/King County Clinic, provide check-ups for vulnerable people
Jason Redmond/AFP/Getty Images

The results of the latest check-up on US healthcare are in, and the numbers don鈥檛 look good.

A survey from the Commonwealth Fund, a foundation in New York City that focuses on health issues, compared health in the US against 10 other countries, including the UK, Australia and Germany. By many measures, the US fell short.

鈥淯S adults are sicker and have the highest rates of material hardship,鈥 says , who led the survey. 鈥淒espite gains made under the Affordable Care Act, Americans still struggle to afford care and face greater financial barriers to care than adults in the other countries.鈥

Osborn and her colleagues conducted telephone surveys with at least 1000 people from each country in the study from March to June of this year.

They found that the health of those in the US still trails behind that of people in developed countries around the world. When asked if they had two or more chronic health conditions, 28 per cent of US participants said they did 鈥 more than in any other country. They were also among the most likely to say that their health affected their ability to work full-time or perform daily activities.

Costly care

People in the US also reported more problems affording healthcare than in any other country 鈥 33 per cent said that they had had a 鈥渃ost-related access problem to medical care鈥 within the past year. They were also more likely to say that they always or usually worried about having enough money for rent or nutritious meals.

It鈥檚 important to recognise that the US has improved since a few years ago, says at Harvard University. 鈥淲hat鈥檚 worth pointing out is that the US has actually made progress on these measures over the past several years with the Affordable Care Act. If there is significant rolling back of the ACA, we鈥檒l see the US lose even more ground compared with other countries,鈥 he says.

By insuring millions of Americans, the ACA was able to get many people in the door at their doctors鈥 office, adds at the University of California Los Angeles. Now, surveys like this one show that the country needs to focus on improving the way it delivers healthcare. 鈥淣o matter whether ACA is repealed or not, we still need to achieve efficiency. We still need to improve healthcare. It鈥檚 still our collective responsibility to address those type of issues.鈥

鈥淭he election really has turned things on its head,鈥 says Sommers. 鈥淭he question is, are we going to protect the gains that we鈥檝e made, or backslide and leave millions more people without coverage?鈥

Meanwhile, the Netherlands came out on top in the survey, which also looked at Canada, France, New Zealand, Norway, Sweden and Switzerland. People in the Netherlands find it far easier than people anywhere else to access healthcare during evenings, weekends and public holidays. People there were also among the least likely to report two or more chronic conditions or having trouble affording medical care.

Health Affairs

Read more: Obamacare has already improved health of low-income Americans; Trump wants to halt healthcare for 20 million poor US citizens

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Smart skin patch listens to your body sounds, from heart to gut /article/2113118-smart-skin-patch-listens-to-your-body-sounds-from-heart-to-gut/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS /article/2113118-smart-skin-patch-listens-to-your-body-sounds-from-heart-to-gut/#respond Wed, 16 Nov 2016 19:00:20 +0000 /?post_type=article&p=2113118
Skin patch stuck to a person's throat
Keep in touch with the sounds of your body
Jeong Lab, University of Colorado Boulder

Let me hear your body talk. A new electronic tattoo picks up on subtle noises inside the human body, including the sound of your heart, muscles and gastrointestinal tract.

The skin patch could be used in medical monitoring, to detect irregular heartbeats, for example. It could also act as a human-machine interface to use your voice to control a video games.

鈥淥ur body generates a lot of different sounds,鈥 says at the University of Illinois at Urbana-Champaign. 鈥淏y designing sensors with a lightweight and thin construction, we are able to capture sounds or vibration signals from our skin.鈥

The device consists of sensors encased in a flexible silicone shell and flanked on either side by electrodes. It sticks to the skin like a plaster or temporary tattoo and measures just 20 millimetres across. You can stick it on almost any part of the body and it will pick up sounds and vibrations from 0.5 to 550 Hertz 鈥 everything from a heartbeat to speech.

The team thinks the patch could be useful for monitoring a broad range of medically significant sounds. In one demonstration, they asked eight people at Camp Lowell Cardiology clinic in Tucson, Arizona, to wear it on their chest. The device detected the patients鈥 heart murmurs and could tell what type they were, an echocardiogram confirmed.

The researchers think the patch could keep tabs on biological implants, alerting doctors to potential medical issues or mechanical failures. As an experiment they introduced blood clots into a heart pump called a left ventricular assistive device, or LVAD. The blood clots changed the sound made by the LVAD, an anomaly the technology should be able to pick up.

Liu says the patch could also enable people to communicate with drones or prosthetics by voice command.

In one experiment, the team placed the device on people鈥檚 throats and set them up with a voice-controlled game of Pac-Man. The sensors listened to the vibrations of the players鈥 vocal cords, as they said 鈥渦p鈥, 鈥渄own鈥, 鈥渓eft鈥 or 鈥渞ight鈥 to move the Pac-Man avatar in real time (see video).

As the patch uses vibrations, it can pick out what people are saying even if the sound of their voice is drowned out by background noise, which offers an advantage over other voice control systems.

An algorithm learned to recognise these four basic commands, which the patch was able to capture in quiet and noisy conditions.

鈥淲hat you鈥檙e capturing is the vibration directly from your throat,鈥 says Liu. 鈥淚f you capture signals of this kind directly, you鈥檙e basically immune from all these surrounding noises.鈥

鈥淭his type of signal 鈥 these low-frequency signals that one can get from muscle activities, from the heart, all of that 鈥 basically opens a new dimension of information, extra to the one that is typically recorded,鈥 says at Imperial College London in the UK.

He says the miniaturisation of electronics and the development of biocompatible materials have made such devices possible.

鈥淭he way this collection of known technologies is used to produce something that is actually comfortable and usable by a patient 鈥 that is what I would call the added value here,鈥 he says.

Science Advances

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This virtual-reality driving game aims to make you feel sick /article/2112812-this-virtualreality-driving-game-aims-to-make-you-feel-sick/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Wed, 16 Nov 2016 18:00:00 +0000 http://mg23231004.200 VR screen
Becoming unfit to drive
Sebastian von Mammen

SICK game, bro. Believe it or not, a new virtual-reality game is designed to make its players feel nauseous.

鈥淐测产别谤蝉颈肠办苍别蝉蝉鈥 describes the side effects experienced by some people when they try VR. The symptoms are similar to those of motion sickness, including headache, nausea and fatigue. It鈥檚 a thorn in the side of most VR developers, who want to find ways to overcome the problem so people can enjoy their games or experiences without getting queasy.

But and his colleagues at the University of Augsburg, Germany, see a possible upside to the phenomenon. 鈥淐ybersickness for any serious app is definitely a no go, but in the context of a fun game, I think it provides the experience of living through something outside of everyday experiences,鈥 says von Mammen.

His team has built a VR racing game called Drink & Drive, at the ACM Symposium on Virtual Reality Software and Technology in Munich, Germany.

鈥淐ybersickness sets in when people get disconnected from the physical reality of their body鈥

In the game, the player races a car around a track scooping up diamonds. But if they hit a can of beer, their in-game blood alcohol content goes up 鈥 and a number of changes designed to reflect the effects of drinking kick in. The processing of the player鈥檚 input is delayed to mimic a slower reaction time, the image becomes blurry and shaky, and the colour contrast is reduced so it鈥檚 harder to see. These effects are also likely to increase feelings of cybersickness.

Cybersickness sets in when people become disconnected from the physical reality of their body, says at the University of Minnesota in Minneapolis. It鈥檚 similar to getting seasick: people need time to figure out how to adjust their body to the rolling motions of a boat.

This feeling gets stronger the more immersive the virtual world, which is why cybersickness is such a problem in VR and other simulators. 鈥淣obody ever got sick playing Pac-Man, but when you play Pac-Man there鈥檚 no pretense that you have entered the Pac-Man world,鈥 says Stoffregen. 鈥淭he more that you experience the virtual world as being real, the more likely you are to try and sort of synchronise the control of your body relative to that world.鈥

But von Mammen and his team suggest that these negative physical effects can be harnessed to enhance a VR experience.

Of 64 people who tried their game at a campus event, 43 experienced some negative side effects, such as dizziness, while playing or after taking off the headset. However, most people said they enjoyed playing, giving it an average rating of 4.36 out of 5. 鈥淧eople still had fun despite being cybersick,鈥 says von Mammen.

The researchers conclude that cybersickness doesn鈥檛 necessarily take the fun out of VR, and can actually contribute to the enjoyment.

This article appeared in print under the headline 鈥淰R to make you nauseous鈥

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Trump鈥檚 election stokes fears of future NSA surveillance abuses /article/2112521-trumps-election-stokes-fears-of-future-nsa-surveillance-abuses/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS /article/2112521-trumps-election-stokes-fears-of-future-nsa-surveillance-abuses/#respond Fri, 11 Nov 2016 15:20:45 +0000 /?post_type=article&p=2112521
Surveillance
What next for surveillance?
REX/Shutterstock

They say you reap what you sow. The US is just weeks away from handing over massive surveillance powers to a man who has expressed enthusiasm for the idea of spying on those he sees as adversaries.

It鈥檚 common knowledge that the US collects massive amounts of data on phone and internet communications involving both its own citizens and people abroad. The National Security Agency (NSA) can read text messages, track social media activity and hack into your computer鈥檚 webcam. Since Edward Snowden鈥檚 revelations on spying in 2013, US president Barack Obama has been criticised by privacy activists for not doing enough to curb such programmes.

Now, his failure to act threatens to turn into a cautionary tale with a dark moral: don鈥檛 build a surveillance state, because you don鈥檛 know who will end up in charge of it.

During his campaign, president-elect Donald Trump railed against Apple when the tech giant resisted unlocking the iPhone of one of the perpetrators of the mass shooting in San Bernadino, California. In July, he invited Russia to hack Hillary Clinton and publish her deleted emails.

He has also spoken in favour of allowing the surveillance of mosques in the US, as New York City did after the 9/11 attacks, and of asking Muslims to register in a federal database and authorising the NSA to collect metadata. 鈥,鈥 he said last year.

When Trump takes office in January, how will he decide to wield the government鈥檚 surveillance powers? He could try to roll back the reforms that Obama has put in place, such as limitations on when the agency can collect people鈥檚 data and how it can be stored. He can decide which countries the US spies on. He might choose to push much harder against companies that decline to build government 鈥back doors鈥 to their technology.

Trump has also promised to exact revenge on personal enemies, such as the women who accused him of sexual assault. Back when details of the NSA鈥檚 warrantless wiretapping came to light, analysts were caught snooping on their partners and love interests. Could Trump take similar advantages?

Wider implications

Meanwhile, the Open Rights Group, a digital rights organisation in London, has raised questions about what Trump鈥檚 election might mean for UK citizens. On Wednesday, its executive director, Jim Killock, that security agency GCHQ has worked closely in the past with the NSA, sharing hacking tools and collected data. 鈥淲e rely so much on US technology and data that it poses questions for our sovereignty,鈥 he writes. 鈥淲ill Trump threaten the UK with the removal of key technologies, if our government steps out of line?鈥

Since the election, privacy activists have advised the public to switch to secure platforms, such as internet browser Tor or encrypted messaging apps like Signal or Telegram.

Some wonder what, if anything, Obama could do to dismantle the government鈥檚 surveillance powers before he steps down in January. Fight for the Future, a non-profit organisation in Boston, Massachusetts, has called on the president to 鈥溾, deleting all data on US citizens and taking down the infrastructure used to collect it. 鈥淚f Trump wants to spy on hundreds of millions of Americans, make him build this capacity from scratch,鈥 it says.

鈥淭he powers of one government are inherited by the next. Reforming them is now the greatest responsibility of this president, long overdue,鈥 Edward Snowden on Thursday. 鈥淭o be clear, 鈥榯his president鈥 means this president, right now. Not the next one. There is still time to act.鈥

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