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Alfonsino
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  • try this experiment: Pull out a single spaghetti stick and hold it at both ends. Now bend it until it breaks. How many fragments did you make? If the answer is three or more, pull out another stick and try again. Can you break the noodle in two? If not, you’re in very good company
  • Feynman’s kitchen experiment remained unresolved until 2005
  • the forces at work when spaghetti — and any long, thin rod — is bent. They found that when a stick is bent evenly from both ends, it will break near the center, where it is most curved. This initial break triggers a “snap-back” effect and a bending wave, or vibration, that further fractures the stick. Their theory, which won the 2006 Ig Nobel Prize, seemed to solve Feynman’s puzzle
  • the forces at work when spaghetti — and any long, thin rod — is bent. They found that when a stick is bent evenly from both ends, it will break near the center, where it is most curved. This initial break triggers a “snap-back” effect and a bending wave, or vibration, that further fractures the stick. Their theory, which won the 2006 Ig Nobel Prize, seemed to solve Feynman’s puzzle. But a question remained: Could spaghetti ever be coerced to break in two?
  • according to a new MIT study, is yes — with a twist. In a paper published this week in the Proceedings of the National Academy of Sciences, researchers report that they have found a way to break spaghetti in two
  • The team found that if a stick is twisted past a certain critical degree, then slowly bent in half, it will, against all odds, break in two.
  • the results may have applications beyond culinary curiosities, such as enhancing the understanding of crack formation and how to control fractures in other rod-like materials such as multifiber structures, engineered nanotubes, or even microtubules in cells.
  • Heisser and Patil used the device to bend and twist hundreds of spaghetti sticks, and recorded the entire fragmentation process with a camera, at up to a million frames per second. In the end, they found that by first twisting the spaghetti at almost 360 degrees, then slowly bringing the two clamps together to bend it, the stick snapped exactly in two. The findings were consistent across two types of spaghetti: Barilla No. 5 and Barilla No. 7, which have slightly different diameters.
  • “Taken together, our experiments and theoretical results advance the general understanding of how twist affects fracture cascades,” Dunkel says.
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  • LISTEN TO ARTICLE 5:23 SHARE THIS ARTICLE Facebook Twitter LinkedIn Email In this articleGOOGLALPHABET INC-A1,212.91USD-0.17-0.01%SPXS&P 5002,815.62USD+6.07+0.22%826938ZMOZILLA CORPPrivate CompanyUSDAAPLAPPLE INC190.40USD-1.05-0.55%AMZNAMAZON.COM INC1,842.92USD-1.01-0.05% Google received a record 4.3 billion-euro ($5 billion) antitrust fine from the European Union and was ordered to change the way it puts search and web-browser apps onto Android mobile devices
  • Google received a record 4.3 billion-euro ($5 billion) antitrust fin
  • Google received a record 4.3 billion-euro ($5 billion) antitrust fine from the European Union and was ordered to change the way it puts search and web-browser apps onto Android mobile devices.
  • Google has used Android as a vehicle to cement the dominance of its search engine," EU Competition Commissioner Margrethe Vestager told reporters. “These practices have denied rivals the chance to innovate and compete on the merits."
  • Google has used Android as a vehicle to cement the dominance of its search engine," EU Competition Commissioner Margrethe Vestager told reporters. “These practices have denied rivals the chance to innovate and compete on the merits
  • Google declined to say what changes it might make to comply with the EU order.
  • Last year, Google faced a then-record 2.4 billion-euro penalty following an investigation into shopping-search service.
  • The EU said Google ensures that Google Search and Chrome are pre-installed on "practically all Android devices" sold in Europe. Users who find these apps on their phones are likely to stick with them and "do not download competing apps in numbers that can offset the significant commercial advantage derived on pre-installation.”
  • Google’s actions reduce the incentives for manufacturers to install and for users to seek out competing apps, it said
  • Alphabet shares were unchanged at $1,212.98 while the S&P 500 Index was little changed at 11:56 a.m. in New York.
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  • The more people a country imprisons, the less dangerous each additional prisoner is likely to be. At some point, the costs of incarceration start to outweigh the benefits
  • along with previous convictions for drug possession and livestock neglect, forced the judge to sentence her to ten years in prison.
  • prosecutors to avoid seeking the maximum penalties for non-violent drug offenders. This reform caused a modest reduction in the number of federal prisoners
  • Reserve prison for the worst offenders. Divert the less scary ones to drug treatment, community service and other penalties that do not mean severing ties with work, family and normality
  • Its incarceration rate rose fivefold between 1970 and 2008. Relative to its population, it now locks up seven times as many people as France, 11 times as many as the Netherlands and 15 times as many as Japan
  • Cognitive behavioural therapy—counselling prisoners on how to avoid the places, people and situations that prompt them to commit crimes—can reduce recidivism by 10-30%, and is especially useful in dealing with young offenders.
  • Each year she serves will cost taxpayers roughly $30,000—enough to pay the fees for three struggling students at the University of Iowa
  • because mass incarceration breaks up families and renders many ex-convicts unemployable, it has raised the American poverty rate by an estimated 20%
  • Donald Trump’s attorney-general, Jeff Sessions, has just torn it up. This month he ordered prosecutors to aim for the harshest punishments the law allows,
  • Money spent on prisons cannot be spent on other things that might reduce crime more
  • For a fraction of the cost of locking them up, they could be fitted with GPS-enabled ankle bracelets that monitor where they are and whether they are taking drugs.
  • . A study in Argentina finds that low-risk prisoners who are tagged instead of being incarcerated are less likely to reoffend
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  • (A Facebook spokesman told MarketWatch at the time that the study was not used to target vulnerable teenagers with advertisements, regretted that this study was carried out and said the contents of this study should not have been shared with a company
  • Michael Fauscette, chief research officer at peer-to-peer business review platform G2 Crowd, said both sides of the political divide used news stories to target Facebook users in different parts of the country
  • Kosinski noted that many people don’t mind being targeted with more relevant information — but feel cheated when it’s done without their knowledge.
  • Cambridge University’s Psychometrics Centre, said these tools were created to “access a history of behavior that might be more accurate than a survey” — and that isn’t always a bad thing. They have potentially life-saving applications in public health
  • What your Facebook ‘likes’ say about you
  • Last month, Congress repealed laws passed by the Federal Communications Commission on what data internet service providers could collect on users.
  • his 2012 analysis of 58,000 volunteers using Facebook predicted a user’s skin color with 95% accuracy.
  • The company carried out research on the psychological states of teenagers and found “moments when young people need a confidence boos
  • during the 2016 election. Democratic voters who were shown content about candidate Hillary Clinton being ahead in the polls, for instance, may have become complacent and less likely to vote.
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  • ,
  • Starship’s delivery robots work this way: Customers use a smartphone mobile application to order their delivery. A text alerts customers — “You have a robot waiting for you outside” — when the robot is near their home or business. A person must be present to receive the delivery because only the customer has a unique code to unlock the robot’s box.
  • The Washington, D.C., Council opened the door to the machines by passing legislation last month that allows up to five different robot companies to operate
  • Ralston of Redwood City said test robots rolling around the city haven’t caused any issues so far. “People enjoy seeing the little robots. Or they completely ignore them
  • The presence of video cameras in the robots is a potential privacy issue
  • Autonomous devices use high-definition cameras that can take video of people and places from a sidewalk or from the air, as in the case of a drone. Scott questions: Who controls those images? How can they be used?
  • When the devices are being operated by humans, a lower resolution feed is used and the images are blurred. And the robots can’t identify the MAC numbers of nearby cellphones, he said.
  • if somebody bothers the robot the operator [watching from a headquarters far away] can actually shout, ‘Hey! What are you doing? … The police are coming in five minutes
  • the robotic delivery invasion already has arrived in the form of machines that look like beer coolers on wheels scooting along the sidewalks
  • developed by the science fiction-sounding company Starship Technologies, will be showing up any day in the nation’s capital and in Redwood City, California. They could soon be in up to 10 cities, ferrying groceries and other packages over what the company calls the “last mile,” from a neighborhood delivery “hub” to your front door, all for as little as $1 a trip.
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  • Chat apps are replacing email as the preferred mode of business-to-consumer interaction.
  • Facebook Messenger recently added support for opt-in ephemeral messaging, called Secret Messages
  • Several trends that have emerged over the past 18 months or so point to the decline of email as the primary mode of communication in the workplace
  • Chat apps provide an appealing alternative to email by offering superior data security. For example, following Hillary Clinton's notorious email scandal, her staff began utilizing Signal, a highly secure chat app that encrypts data automatically.
  •  In 2016, instant messaging and texting (e.g. SMS and chat apps) made up 35% of communication, globally, according to Deloitte, up from 29% in 2014
  • Email is a powerful tool for marketers in reaching consumers. Around 50% of participants of Adobe’s survey noted that email was their preferred mode of receiving marketing material.
  • A compromise is to allow users to choose when they encrypt their messages. Here are two examples:
  • Google Allo, Google’s new chat app with baked-in Google Assistant lets users choose to turn on end-to-end encryption for their correspondence.
  • people are using it as a storage and filing system, making it easier for them to quickly access important information
  • But is email the next legacy technology to fall prey to obsolescence? The short answer is no. However, it's worth looking more closely at shifting user behavior when it comes to online communication — whether it's at home, on-the-go, or in the workplace. 
  • Among these three modes of communication, chat apps are making the biggest waves, largely because they over-index in terms of total number of users and engagement rates. For context, chat apps like WhatsApp and Facebook Messenger rival email hosts like Google in terms of users, with each reporting over 1 billion people using their services at least once each month. Moreover, combined, the top four chat apps boast more than 3 billion monthly active users globally, surpassing the top four social networks. 
  • Chat apps like Slack offer employees the ability to engage with multiple colleagues at one time as well as instantly upload and share documents and files without having to leave the app, potentially enhancing productivity.
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