Silicon

In their Hacking for Defense class, students at Stanford University in California don’t hit the books or work on problem sets in the library. They go out into the field, tackling real world problems given to them by the Department of Defense and the U.S. military. The unusual 10-week course is an eye opener for the students who learn up close the challenges facing national security. VOA’s Michelle Quinn checked it out.
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It took seven years for the deep-space probe Cassini to reach Saturn. Since 2005 it has been studying the planet and its moons, sending troves of photos and information. As the spacecraft reaches the end of its useful life, scientists will soon send it into Saturn’s atmosphere until it burns up. VOA’s George Putic reports.
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A budget proposal by the Trump administration in March outlines a commitment to the National Aeronautics and Space Administration’s (NASA) effort to send astronauts to Mars. About $3.7 billion is earmarked for development of the Space Launch System and the Orion capsule, crucial parts of NASA’s effort to send humans deeper into space. VOA’s Kane Farabaugh explores the effort of contractors working on the project, united by the commitment to “boldly go” further into the final frontier.
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It’s probably not a good idea to decide what to eat based on how many calories your wearable fitness tracker says you’ve burned, according to a new study.

Researchers at Stanford University in California, who tested several popular fitness trackers on 60 volunteers, say the fitness trackers are good for measuring heart rate and counting steps, but they’re bad at measuring energy expenditure.

The volunteers, 29 men and 31 women, engaged in a variety of physical activities, including walking or running on a treadmill or riding a stationary bike. Their heart rates were measured using a medical-grade electrocardiograph. Energy expenditure was determined by measuring the levels of oxygen and carbon dioxide in the volunteers’ breath.

Six of the seven devices tested, which included the Apple Watch, Basis Peak, Fitbit Surge, Microsoft Band, Mio Alpha 2, PulseOn and the Samsung Gear S2, did a good job measuring heart rate, coming within 5 percent of the accuracy of the electrocardiograph.

However, when it came to measuring calories burned, they did not do a very good job, with the most accurate tracker off by 27 percent. One was off by 93 percent.

“People are basing life decisions on the data provided by these devices,” said Euan Ashley, a professor of cardiovascular medicine, of genetics and of biomedical data science at Stanford, who added that consumer devices aren’t held to the same standards as medical devices.

Ashley was surprised by the results.

“The heart rate measurements performed far better than we expected,” he said. “But the energy expenditure measures were way off the mark. The magnitude of just how bad they were surprised me.”

The findings were published May 24 in the Journal of Personalized Medicine.
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A computer beat China’s top player of go, one of the last games machines have yet to master, for a second time Thursday in a competition authorities limited the Chinese public’s ability to see.

Ke Jie lost despite playing what Google’s AlphaGo indicated was the best game any opponent has played against it, said Demis Hassabis, founder of the company that developed the program.

AlphaGo defeated Ke, a 19-year-old prodigy, in their first game Tuesday during a forum organized by Google on artificial intelligence in Wuzhen, a town west of Shanghai. They play a final game Saturday.

AlphaGo previously defeated European and South Korean champions, surprising players who had expected it to be at least a decade before computers could master the game.

Internet users outside China could watch this week’s games live but Chinese censors blocked most mainland web users from seeing the Google site carrying the feed. None of China’s dozens of video sites carried the live broadcasts but a recording of Tuesday’s game was available the following night on one popular site, Youku.com.

State media reports on the games have been brief, possibly reflecting Beijing’s antipathy toward Google, which closed its China-based search engine in 2010 following a dispute over censorship and computer hacking. Google says 60 million people in China watched online when AlphaGo played South Korea’s go champion in March 2016.

The official response to the match, a major event for the worlds of go and artificial intelligence, reflects the conflict between the ruling Communist Party’s technology ambitions and its insistence on controlling what its public can see, hear and read.

The government encourages internet use for business and education but tries to block access to material considered subversive.

The possible reason for suppressing coverage while allowing Google to organize the event was unclear. Censorship orders to Chinese media are officially secret and government officials refuse to confirm whether online material is blocked.

On Thursday, AlphaGo “thought that Ke Jie played perfectly” for the first 50 moves, Hassabis said at a news conference.

“For the first roughly 100 moves, it is the closest game we have ever seen anyone play against the master version of AlphaGo,” he said.

Ke said the computer made unexpected moves after playing more methodically on Tuesday.

“From the perspective of human beings, it stretched a little bit and I was surprised at some points,” he said.

“I also thought that I was very close to winning the match in the middle,” Ke said. “I could feel my heart thumping. But maybe because I was too excited, I did some wrong or stupid moves. I guess that’s the biggest weak point of human beings.”

Go players take turns putting white or black stones on a rectangular grid with 361 intersections, trying to capture territory and each other’s pieces by surrounding them. The game is considered more difficult than chess for machines to master because the near-infinite number of possible positions requires intuition and flexibility.

This week’s games are taking place in a hall where Chinese leaders hold the annual World Internet Conference, an event attended by global internet companies.

China has the world’s biggest population of internet users, with some 730 million people online at the end of last year, according to government data.

Censors block access to social media and video-sharing websites such as Facebook and YouTube. Internet companies are required to employ teams of censors to watch social media and remove banned material.

Web surfers can get around online filters using virtual private networks, but Beijing has cracked down on use of those.
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California-based company Rocket Lab said Thursday it had launched a test rocket into space from its New Zealand launch pad, although the rocket didn’t reach orbit as hoped. 

 

The company said its Electron rocket lifted off at 4:20 p.m. Thursday and reached space three minutes later. 

 

“It has been an incredible day and I’m immensely proud of our talented team,” company founder Peter Beck said in a statement. 

 

Beck, a New Zealander, said the early stages of the mission went well. 

 

“We didn’t quite reach orbit and we’ll be investigating why, however reaching space in our first test puts us in an incredibly strong position,” he said. 

More tests approved

Rocket Lab was given official approval last week to conduct three test launches from the remote Mahia Peninsula on the North Island. The company hopes to begin commercial launches later this year and eventually launch about one rocket every week. 

 

The company said it will target getting to orbit on the second test and will look to carry the maximum payload. 

 

New Zealand has never had a space program but officials hope regular launches could change perceptions of the South Pacific nation and generate hundreds of millions of dollars each year in revenue. 

 

Rocket Lab plans to keep costs low by using lightweight, disposable rockets with 3D-printed engines. It sees an emerging market in delivering lots of small devices into low Earth orbit. The satellites would be used for everything from monitoring crops to providing internet service. 

New space club member

 

Politicians are rushing through new space laws and the government has set up a boutique space agency, which employs 10 people. 

 

“So far, it’s only superpowers that have gone into space,” Simon Bridges, New Zealand’s economic development minister, told The Associated Press last week. “For us to do it, and be in the first couple of handfuls of countries in the world, is pretty impressive.” 

 

Rocket Lab’s Electron rocket is unusual in many respects. It carries only a small payload of about 150 kilograms (331 pounds). It’s made from carbon fiber and uses an electric engine. Rocket Lab says each launch will cost just $5 million, a tiny fraction of a typical rocket launch. 

 

It’s a different plan than some other space companies like Elon Musk’s SpaceX, which uses larger rockets to carry bigger payloads. 

 

Rocket Lab was founded by Beck and is privately held. The company has received about $150 million in venture capital funding. 
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In a San Francisco kitchen, chefs are re-creating everyday foods, such as eggs, mayonnaise, salad dressings and cookies from unconventional sources. 

“Playing with ingredients that are totally different in the food system is a lot like walking on the moon. We’re doing things no one has ever done before so it’s challenging,” said chef Chris Jones, who heads product development at the Hampton Creek technology company. 

While vegetarian foods have been around as long as there have been vegetarians, a new generation of companies, mostly from California, is using new technology to look for alternative protein sources that do not come from an animal. 

Hampton Creek 

Hampton Creek uses robotics to identify plants from around the world that can help re-create traditional foods substituting animal products with plant material. 

“We look into the different molecular characteristics and ultimately we’re able to identify relationships between what we see on a molecular level and whether it causes a cake to rise or what makes a mayo taste good or whether it binds a cookie together or makes a nice creamy butter,” said Hampton Creek founder Josh Tetrick. 

“It’s been really recent advances, both in screening methodologies as well as data science, that actually makes it possible,” said Jim Flatt, Hampton Creek’s chief of research and development.

Beyond burger 

In the lab of another company, Beyond Meat, scientists re-created a hamburger patty out of proteins from yellow peas, soy and beets for the look of blood. The scientists are breaking down the building blocks of meat and going into the plant kingdom to look for those same elements. They’re then rebuilding them into a new kind of food that uses plant-based protein to create a patty that looks just like a beef patty 

“What we’re doing is we’re taking plant matter. We’re running it through heating, cooling and pressure and that’s basically stitching together the proteins so they take on the fibrous texture of animal muscle,” said Beyond Meat founder Ethan Brown 

These companies say plants hold the key to solving global food problems. 

“Whether it’s Asia, Africa, India, you’re seeing a very strong trend toward increasing animal protein consumption. I don’t think as a globe we can afford that,” Brown said.   

“The planet actually cannot work with the way we are consuming meat because we don’t have enough arable land to create enough cereals for all the animals that we need if we are to feed the world through meat,” said Jeremy Coller of Coller Capital, an investor of alternative protein foods. 

“Food security is an increasingly big issue, particularly because of climate change and some other issues. I think if you expand the number of tools we can use to feed people really well, you help to mitigate against these risks,” said Tetrick, who envisions bringing healthier, new plant-based foods, that are culturally relevant to local cuisines, to regions in the world such as Africa, where hunger is no stranger. 

For now, Beyond Meat’s patties are sold in Hong Kong and the U.S.  Hampton Creek’s mayonnaise, salad dressings and cookies can be found in Mexico, Hong Kong and U.S. grocery stories.  Both companies are trying to improve and expand their range of products. 

“How do we figure out a way to make food healthier, that’s more sustainable, to actually taste good that’s actually affordable for everyone,” explained Tetrick of his mission. 

Because of this greater global goal, those who work in this industry say the subject of alternative sources of protein is not a fad, but a trend that is here to stay.
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According to the National Institutes of Health, 17 percent of people around the world will be 65 or older by 2050. Currently it is just more than 8 percent. That expected flood of elderly people is prompting authorities to think about new ways to care for them, and no surprise, the internet is involved. VOA’s Kevin Enochs reports.
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An increasing number of museums and exhibition halls around the world use virtual reality technology to transport visitors to different spaces and different time. London’s Somerset House recently opened a virtually recreated exhibition staged 178 years ago, showing some of the earliest photographs, transporting users to the birth of the information age. VOA’s George Putic reports.
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Whether it’s for religious, ethical or health reasons, people who don’t eat meat have had vegetarian options with the help of some creativity in the kitchen. Plants may also hold the key to solving global food problems. That’s the mission of a new generation of plant-based foods created with technology’s help. These mostly California-based companies are finding shelf space in U.S. grocery stores and beyond. VOA’s Elizabeth Lee visited a few of these test kitchens.
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Instagram and Snapchat are the worst social media platform for young people’s mental health, and YouTube is the most positive, a new study suggests.

The ranking comes in a report from the British Royal Society for Public Health, which ranked the sites’ impact on young people.

“Social media has been described as more addictive than cigarettes and alcohol, and is now so entrenched in the lives of young people that it is no longer possible to ignore it when talking about young people’s mental health issues,” said Shirley Cramer, the chief executive of the RSPH.

“It’s interesting to see Instagram and Snapchat ranking as the worst for mental health and well being, both platforms are very image-focused and it appears they may be driving feelings of inadequacy and anxiety in young people.”

For the study, researchers surveyed about 1,500 young people age 14 to 24 from Britain, asking them to score the impact social media sites had on 14 “health and well-being” issues. Those include anxiety, depression, quality of sleep, body image, loneliness and real-world friendships and connections.

According the RSPH, YouTube was the most positive, followed by Twitter, Facebook, Snapchat and Instagram.

“Social media has dramatically shifted how we socialize, communicate, and form relationships with each other,” said Laci Green, a professional health YouTuber with 1.5 million subscribers. “Its impact cannot be understated.”

She added that since Instagram and Facebook “present highly curated versions of the people we know and the world around us, it is easy for our perspective of reality to become distorted.”

To combat the negative influence of social media, the researchers recommend adding pop ups that warn users of heavy usage, which was supported by 71 percent of the people surveyed.

Another recommendation is for social media companies that can tell from a user’s post that they’re in distress could discretely point them toward help. That was supported by 80 percent of those surveyed. Finally, nearly 70 percent said social media sites should note when a photo has been manipulated.

“As the evidence grows that there may be potential harms from heavy use of social media, and as we upgrade the status of mental health within society, it is important that we have checks and balances in place to make social media less of a wild west when it comes to young people’s mental health and well being,” said Cramer. “We want to promote and encourage the many positive aspects of networking platforms and avoid a situation that leads to social media psychosis which may blight the lives of our young people.”
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According to a recent analysis, in about 15 years, depending on the country, up to 38 percent of jobs performed by humans may be turned over to robots. Experts who gathered last week at a robotic expo in Paris say we have to prepare for the new reality if we want to avoid disruptive social changes. VOA’s George Putic reports.
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There are an estimated 39 million blind people in the world. Another 200 million, people like Julissa Marquez, are visually impaired. A knife attack left her with a less than 10 percent chance of having useful vision. But some new technology has literally opened her eyes. VOA’s Kevin Enochs reports.
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Several hundred middle school and high school students from Senegal and surrounding countries spent last week in Dakar building robots. Organizers of the annual robotics competition say the goal is to encourage African governments and private donors to invest more in science and math education throughout the continent. Ricci Shryock reports for VOA from Senegal’s capital.
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A tattoo artist in California has created what many of us can’t imagine — a tattoo that also produces sound. Artist Nate Siggard inks audio soundwaves onto the skin that makes it possible to hear music or someone’s voice by using a smartphone app. VOA’s Deborah Block explains how he does it.
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Several hundred middle school and high school students from Senegal and surrounding countries spent last week in Dakar building robots. Organizers of the annual robotics competition say the goal is to encourage African governments and private donors to invest more in science and math education throughout the continent.

The hum of tiny machines fills a fenced-off obstacle course, as small robots compete to gather mock natural resources such as diamonds and gold.

The robots were built by teams of young people gathered in Dakar for the annual Pan-African Robotics Competition.

‘Made in Africa’

The event’s founder, Sidy Ndao, says this year’s theme is “Made in Africa,” and focuses on how robotics developed in Africa could help local economies.

“We have noticed that most countries that have developed in the likes of the United States have based their development on manufacturing and industrialization, and African countries on the other hand are left behind in this race,” Ndao said. “So we thought it would be a good idea to inspire the kids to tell them about the importance of manufacturing, the importance of industry, and the importance of creation and product development.”

During the week, the students were split into three groups.

The first group worked on robots that could automate warehouses. The second created machines that could mine natural resources, and the third group was tasked to come up with a new African product and describe how to build it.

Building a robot a team effort

Seventeen-year-old Rokyaha Cisse from Senegal helped her team develop a robot that sends sound waves into the ground to detect the presence of metals and then start digging.

Cisse says it is very interesting and fun, and they are learning new things, as well as having their first opportunity to handle robots.

As part of a younger team, Aboubacar Savage from Gambia said their robot communicates with computers.

“It is a robot that whatever you draw into the computer, it translates it and draws it in real life,” Savage said. “It is kind of hard. And there is so much competition, but we are trying. I have learned how to assemble a robot. I have learned how to program into a computer.”

The event’s founder, Ndao, is originally from Senegal, but is now a professor at the University of Nebraska’s Lincoln College of Engineering in the United States.

“I have realized how much the kids love robotics and how much they love science,” Ndao said “You can tell because when it is time for lunch, we have to convince them to actually leave, and then [when] it is time to go home, nobody wants to leave.”

Outsourced jobs cost Africa billions

A winning team was named in each category, but Ndao hopes the real winners will be science and technology in Africa.

The organizers of the Next Einstein Forum, which held its annual global gathering last year in Senegal, said Africa is currently missing out on $4 billion a year by having to outsource jobs in science, technology, engineering, and mathematics to expatriates.

Ndao said African governments and private investors need to urgently invest more on education in those fields, in particular at the university level.
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Several hundred middle school and high school students from Senegal and surrounding countries spent last week in Dakar building robots, and organizers hoped to encourage African governments and private donors to invest more in science and math education throughout the continent.
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Russian cybercriminals used malware planted on Android mobile devices to steal from domestic bank customers and were planning to target European lenders before their arrest, investigators and sources with knowledge of the case told Reuters.

Their campaign raised a relatively small sum by cybercrime standards — more than 50 million roubles ($892,000) — but they had also obtained more sophisticated malicious software for a modest monthly fee to go after the clients of banks in France and possibly a range of other western nations.

Russia’s relationship to cybercrime is under intense scrutiny after U.S. intelligence officials alleged that Russian hackers had tried to help Republican Donald Trump win the U.S. presidency by hacking Democratic Party servers.

The Kremlin has repeatedly denied the allegation.

The gang members tricked the Russian banks’ customers into downloading malware via fake mobile banking applications, as well as via pornography and e-commerce programs, according to a report compiled by cybersecurity firm Group-IB, which investigated the attack with the Russian Interior Ministry.

The criminals — 16 suspects were arrested by Russian law enforcement authorities in November last year — infected more than a million smartphones in Russia, on average compromising 3,500 devices a day, Group-IB said.

The hackers targeted customers of state lender Sberbank, and also stole money from accounts at Alfa Bank and online payments company Qiwi, exploiting weaknesses in the companies’ SMS text message transfer services, said two people with direct knowledge of the case.

Although operating only in Russia before their arrest, they had developed plans to target large European banks including French lenders Credit Agricole, BNP Paribas and Societe General, Group-IB said.

A BNP Paribas spokeswoman said the bank could not confirm this information, but added that it “has a significant set of measures in place aimed at fighting cyberattacks on a daily basis.” Societe General and Credit Agricole declined comment.

The gang, which was called “Cron” after the malware it used, did not steal any funds from customers of the three French banks. However, it exploited the bank service in Russia that allows users to transfer small sums to other accounts by sending an SMS message.

Having infected the users’ phones, the gang sent SMS messages from those devices instructing the banks to transfer money to the hackers’ own accounts.

The findings illustrate the dangers of using SMS messages for mobile banking, a method favored in emerging countries with less advanced internet infrastructure, said Lukas Stefanko, a malware researcher at cybersecurity firm ESET in Slovakia.

“It’s becoming popular among developing nations or in the countryside where access to conventional banking is difficult for people,” he said. “For them it is quick, easy and they don’t need to visit a bank. … But security always has to outweigh consumer convenience.”

Cybercriminals

The Russian Interior Ministry said a number of people had been arrested, including what it described as the gang leader.

This was a 30-year-old man living in Ivanovo, an industrial city 300 km (185 miles) northeast of Moscow, from where he had commanded a team of 20 people across six different regions.

Four people remain in detention while the others are under house arrest, the ministry said in a statement.

“In the course of 20 searches across six regions, police seized computers, hundreds of bank cards and SIM cards registered under fake names,” it said.

Group-IB said the existence of the Cron malware was first detected in mid-2015, and by the time of the arrests the hackers had been using it for under a year.

The core members of the group were detained on November 22 last year in Ivanovo. Photographs of the operation released by Group-IB showed one suspect face down in the snow as police in ski masks handcuffed him.

The Cron hackers were arrested before they could mount attacks outside Russia, but plans to do that were at an advanced stage, said the investigators.

Group-IB said that in June 2016 they had rented a piece of malware designed to attack mobile banking systems, called Tiny.z for $2,000 a month. The creators of the Tiny.z malware had adapted it to attack banks in Britain, Germany, France, the United States and Turkey, among other countries.

The Cron gang developed software designed to attack lenders including the three French groups, it said, adding it had notified these and other European banks at risk.

A spokeswoman for Sberbank said she had no information about the group involved. However, she said: “Several groups of cybercriminals are working against Sberbank. The number of groups and the methods they use to attack us change constantly.”

“It isn’t clear which specific group is being referred to here because the fraudulent scheme involving Android OS [operating system] viruses is widespread in Russia and Sberbank has effectively combated it for an extensive period of time.”

Alfa Bank did not provide a comment. Qiwi did not respond to multiple requests for comment.

Google, the maker of Android, has taken steps in recent years to protect users from downloading malicious code and by blocking apps which are insecure, impersonate legitimate companies or engage in deceptive behaviors.

A Google spokesman said: “We’ve tracked this malware family for several years and will continue to take action on its variants to protect our users.”

Fake mobile apps

The Russian authorities, bombarded with allegations of state-sponsored hacking, are keen to show Russia too is a frequent victim of cybercrime and that they are working hard to combat it. The interior and emergencies ministries, as well as Sberbank, said they were targeted in a global cyberattack earlier this month.

Since the allegations about the U.S. election hacking, further evidence has emerged of what some Western officials say is a symbiotic relationship between cyber criminals and Russian authorities, with hackers allowed to attack foreign targets with impunity in return for cooperating with the security services while Moscow clamps down on those operating at home.

The success of the Cron gang was facilitated by the popularity of SMS-banking services in Russia, said Dmitry Volkov, head of investigations at Group-IB.

The gang got their malware on to victims’ devices by setting up applications designed to mimic banks’ genuine apps. When users searched online, the results would suggest the fake app, which they would then download. The hackers also inserted malware into fake mobile apps for well-known pornography sites.

After infecting a customer’s phone, the hackers were able to send a text message to the bank initiating a transfer of up to $120 to one of 6,000 bank accounts set up to receive the fraudulent payments.

The malware would then intercept a confirmation code sent by the bank and block the victim from receiving a message notifying them about the transaction.

“Cron’s success was due to two main factors,” Volkov said.

“First, the large-scale use of partner programs to distribute the malware in different ways. Second, the automation of many [mobile] functions which allowed them to carry out the thefts without direct involvement.”
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Leaked Facebook documents reveal the company walks a fine line between free speech and violent or hateful content.

The Guardian newspaper says it obtained the “more than 100 internal training manuals, spreadsheets and flowcharts” outlining how the social media giant decides what content can stay and what gets taken down.

According to the documents, Facebook does allows certain posts that contain violent language. For example, it’s OK to post “let’s beat up fat kids,” but prohibited to post “someone shoot Trump.”

“People commonly express disdain or disagreement by threatening or calling for violence in generally facetious and unserious ways,” reads one of the documents.

Images showing non-sexual physical abuse or bullying of children as long as there is not a “sadistic or celebratory element.” Live streams of people harming themselves is also allowed, the documents say because Facebook doesn’t want to “censor or punish people in distress.”

A Facebook representative said the company’s top priority is keeping users safe.

“We work hard to make Facebook as safe as possible while enabling free speech,” said Monica Bickert, Facebook’s head of global policy management. “This requires a lot of thought into detailed and often difficult questions, and getting it right is something we take very seriously.”

Facebook has been under increased pressure to prevent violent content from appearing, as a stream of violent videos have been allowed to stay on the site for hours before being deleted.

One particularly gruesome video showed the brutal murder of Cleveland grandfather Robert Godwin in a crime posted on Facebook Live.

The company recently hired 3,000 more humans to help curb objectionable material, and The Guardian documents reveal the moderators are overwhelmed with requests to review material.

“These reviewers will also help us get better at removing things we don’t allow on Facebook, like hate speech and child exploitation, “ Facebook founder Mark Zuckerberg wrote in a post about the hiring. “And we’ll keep working with local community groups and law enforcement who are in the best position to help someone if they need it – either because they’re about to harm themselves, or because they’re in danger from someone else.”

The company also employs algorithms to mark objectionable content.

Facebook also faces criticism when it does take down material deemed offensive.

Last fall, the company removed an iconic photo showing a naked Vietnamese girl running from a napalm attack during the Vietnam War. Facebook later allowed the image to be posted.
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China’s biggest online retailer, JD.com Inc., announced plans Monday to develop drone aircraft capable of carrying a ton or more for long-distance deliveries.

 

The company said it will test the drones on a network it is developing to cover the northern Chinese province of Shaanxi. It said they will carry consumer goods to remote areas and farm produce to cities.

 

JD.com, headquartered in Beijing, says it made its first deliveries to customers using smaller drones in November. Other e-commerce brands including Amazon.com Inc. also are experimenting with drones for delivery.

“We envision a network that will be able to efficiently transport goods between cities, and even between provinces, in the future,” the chief executive of JD’s logistics business group, Wang Zhenhui, said in a statement.

JD.com operates its own nationwide network of thousands of delivery stations manned by 65,000 employees. The company says it has 235 million regular customers.

 

Drones are part of the industry’s response to the challenge of expanding to rural areas where distances and delivery costs rise.

 

Drone delivery in China and other countries faces hurdles including airspace restrictions and the need to avoid collisions with birds and other obstacles. In the United States, regulators allow commercial drone flights only on an experimental basis.

 

A 1-ton payload is heavier than what most drones available now can carry, though some can carry hundreds of kilograms and major drone makers are working on devices able to carry more.

 

China is home to the world’s biggest manufacturer of civilian drones, DJI, in the southern city of Shenzhen.

 

JD.com said its planned drone delivery network in Shaanxi would cover a 300-kilometer (200-mile) radius and have drone air bases throughout the province.

 

The company said it will set up a research-and-development campus with the Xi’an National Civil Aerospace Industrial Base to develop and manufacture drones.

 

JD.com earlier reported first-quarter revenue rose 41.2 percent over a year ago to 76.2 billion yuan ($11.1 billion). It reported profit of 843.1 million yuan ($122.4 million) compared with a loss of 864.9 million yuan a year earlier.
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