That's the argument made by computer scientists M.P.Sivaram Kumar and S. Rajasekaran in a recent article in the Journal of Computing entitled "Path Planning Algorithm for Extinguishing
Forest Fires." Their thesis is simple: the vast majority of forests are destroyed by wild forest fires, and current methods of sylvan vigilance -- mainly those involved individual personnel on foot patrol -- are grossly inefficient in identifying emerging threats. Their pre-defined route may be damaged or obscured, inclement weather affects visibility, and life on patrol is boring and "miserable," leading to a lack of attention.
Kumar and Rajasekaran argue that deploying robotic systems throughout wooded areas will increase firefighters' ability not just to identify emerging threats, but also to more effectively plot the path of a wildfire, and then deploy the appropriate resources to the right places. The two imagine a grid-based system of automated drones, designed to detect abnormal changes in temperature and relay data back to a command center:
The automatic forest fire detection and extinguishing system consists of
nodes deployed deterministically in a forest area and all
the nodes know their location based on coordinate values
of a matrix. Each node is equipped with a temperature
sensor and an Omni directional antenna. Nodes continuously monitor the environment to check if there is fire or
not in the particular cell. When change in temperature i.e.
temperature raises above a certain threshold, is detected
by a particular node they send message packets which
contain location measurements. These packets are received by one of the corner node. The corner node then
sends the packet to the Actor which in turn will process
the packet which can be used in reaching the target area
to extinguish fire.
On-the-ground nodes, they argue, are significantly better than the preexisting satellite detection systems that, due to a long scan period and low resolution of images, end up detecting fires relatively late. Relying on satellites often means that firefighting personnel deploy more resources in their firefighting than would otherwise be necessary.
There are obvious environmental concerns to stringing a sprawling forest with robotic nodes. Introducing any man-made object, even stationary a drone, can have unintended consequences on a complex arboreal ecosystem. Unexpected costs -- a tree falling in the woods, surprise visits from assorted large mammals -- could make deploying and maintaining a robotic grids prohibitively expensive.
But among the significant additional benefits: potentially saving lives. Wireless Emergency Alerts (WEA), a system developed by FEMA, the FCC, and wireless carriers, will soon be deployed in emergency situations like severe weather to notify citizens of imminent threats to their safety. Within the next few weeks, nearly everyone in the country with a mobile phone could start receiving text messages from the National Weather Service, local law enforcement, or perhaps even the President. Here's how it works:
In the event of an emergency, an authorized alerting agency can select a cell tower (or towers) to broadcast a WEA. In order to receive the message, a person must be within range of the cell-tower broadcast, and must have a phone capable of "hearing" the the broadcast. Most cellular devices manufactured after mid-2011 already have this capability.
It is through the use of CB technology that CMAS is able to provide some geographic targeting without the need for opting-in. However, it is important to note that because WEAs are "broadcast" from towers, the geo-targeting feature is not as precise as GPS. GPS is a two-way street of communication between a GPS-equipped device and various positioning satellites. WEAs are not two-way...it is simply a modern day "shout" to give a heads-up that something requires your attention.
According to the National Fire Protection Association, only 11 people were killed in wildfire-related incidents in 2011. But application of the sensor technology to, say, rivers with a high likelihood of flooding, earthquake-prone regions, and other unstable natural centers could give first responders a useful heads-up. When tied in with FEMA's new WEA system, average citizens could have enough advance warning of danger to protect themselves in the event of a natural disaster. And in the event of a fast-moving fire or flood, a few extra minutes could mean the difference between life and death.
On Monday, Trump set out to emphasize honor and integrity—and then he made a series of unsubstantiated claims.
The week of October 15 was supposed to be set aside to reflect on character.
“We celebrate National Character Counts Week because few things are more important than cultivating strong character in all our citizens, especially our young people,” President Trump said in declaring it. “The grit and integrity of our people, visible throughout our history, defines the soul of our Nation. This week, we reflect on the character of determination, resolve, and honor that makes us proud to be American.”
There hasn’t been much time to talk about character. Instead, politics this week has been dominated by a peculiar scandal, beginning with one off-base remark from the president on Monday, that has managed to somehow leave everyone it touches worse off than they were at the start of the week—including the president, his chief of staff and spokeswoman, a member of Congress, and the family of a Special Forces soldier killed in Niger earlier this month.
Emma Perrier was deceived by an older man on the internet—a hoax that turned into an unbelievable love story.
Emma Perrier spent the summer of 2015 mending a broken heart, after a recent breakup. By September, the restaurant manager had grown tired of watching The Notebook alone in her apartment in Twickenham, a leafy suburb southwest of London, and decided it was time to get back out there. Despite the horror stories she’d heard about online dating, Emma, 33, downloaded a matchmaking app called Zoosk. The second “o” in the Zoosk logo looks like a diamond engagement ring, which suggested that its 38 million members were seeking more than the one-night stands offered by apps like Tinder.
She snapped the three selfies the app required to “verify her identity.” Emma, who is from a volcanic city near the French Alps, not far from the source of Perrier mineral water, is petite, and brunette. She found it difficult to meet men, especially as she avoided pubs and nightclubs, and worked such long hours at a coffee shop in the city’s financial district that she met only stockbrokers, who were mostly looking for cappuccinos, not love.
Rumors are swirling over what took place in the final hours before four U.S. servicemen died—but a clear picture of what actually took place is only beginning to emerge.
On October 4, a small group of U.S. troops were preparing to leave a meeting with community leaders near the small town of Tongo Tongo in Niger. They were close to the Malian border, traveling in unarmored pick-up trucks with limited weaponry and a few dozen of their Nigerien counterparts. Then they were ambushed.
By the time the more than 30-minute assault was over, three U.S. troops were confirmed dead and two more were gravely injured. Another, Sergeant La David Johnson, was missing and his body would not be recovered for another two days. French aircraft, called in for back-up, circled overhead as fire was exchanged below. They later helped to evacuate survivors.
This is the official account of what happened, as CNN, the Washington Post, and others have reported it. Yet there are deep questions as to what exactly what went wrong, including why U.S. troops were traveling in unarmored vehicles and how Johnson was separated from the group, how he died, and why it took so long to find him. As public scrutiny of the incident intensifies, so too do the many stories about what may have taken place. On social platforms like Twitter, people are sharing graphic details about the troops’ final, brutal hours.But there’s little clarity, and certainly sparse information from public officials about what actually happened.
DeepMind’s new self-taught Go-playing program is making moves that other players describe as “alien” and “from an alternate dimension.”
It was a tense summer day in 1835 Japan. The country’s reigning Go player, Honinbo Jowa, took his seat across a board from a 25-year-old prodigy by the name of Akaboshi Intetsu. Both men had spent their lives mastering the two-player strategy game that’s long been popular in East Asia. Their face-off, that day, was high-stakes: Honinbo and Akaboshi represented two Go houses fighting for power, and the rivalry between the two camps had lately exploded into accusations of foul play.
Little did they know that the match—now remembered by Go historians as the “blood-vomiting game”—would last for several grueling days. Or that it would lead to a grisly end.
Early on, the young Akaboshi took a lead. But then, according to lore, “ghosts” appeared and showed Honinbo three crucial moves. His comeback was so overwhelming that, as the story goes, his junior opponent keeled over and began coughing up blood. Weeks later, Akaboshi was found dead. Historians have speculated that he might have had an undiagnosed respiratory disease.
More comfortable online than out partying, post-Millennials are safer, physically, than adolescents have ever been. But they’re on the brink of a mental-health crisis.
One day last summer, around noon, I called Athena, a 13-year-old who lives in Houston, Texas. She answered her phone—she’s had an iPhone since she was 11—sounding as if she’d just woken up. We chatted about her favorite songs and TV shows, and I asked her what she likes to do with her friends. “We go to the mall,” she said. “Do your parents drop you off?,” I asked, recalling my own middle-school days, in the 1980s, when I’d enjoy a few parent-free hours shopping with my friends. “No—I go with my family,” she replied. “We’ll go with my mom and brothers and walk a little behind them. I just have to tell my mom where we’re going. I have to check in every hour or every 30 minutes.”
Those mall trips are infrequent—about once a month. More often, Athena and her friends spend time together on their phones, unchaperoned. Unlike the teens of my generation, who might have spent an evening tying up the family landline with gossip, they talk on Snapchat, the smartphone app that allows users to send pictures and videos that quickly disappear. They make sure to keep up their Snapstreaks, which show how many days in a row they have Snapchatted with each other. Sometimes they save screenshots of particularly ridiculous pictures of friends. “It’s good blackmail,” Athena said. (Because she’s a minor, I’m not using her real name.) She told me she’d spent most of the summer hanging out alone in her room with her phone. That’s just the way her generation is, she said. “We didn’t have a choice to know any life without iPads or iPhones. I think we like our phones more than we like actual people.”
The president relishes bellicose language and performative violence, but seldom acknowledges its human toll.
When White House Chief of Staff—and Gold Star parent—John Kelly, on Thursday defended Donald Trump’s call to the newly widowed Myeshia Johnson, he was somber and sincere, which is refreshing. But he was wrong.
Context matters. From another person, at another time, observing that Sergeant La David Johnson “knew what he signed up for” by joining the Army wouldn’t have sparked outrage. But consider what else Representative Frederica Wilson—with the backing of Johnson’s mother—has alleged: that Trump didn’t know Johnson’s name; he repeatedly called him “your guy.” And that Trump’s tone was oddly jovial: “He was almost, like, joking.”
Above all, consider what we know about the way Trump discusses pain and death. This is the man who congratulated Puerto Ricans—whose island had been utterly devastated—for losing only “16” and not “thousands of people.” The man who told a crowd in Corpus Christi on August 29, while 30,000 Texans were displaced, “It’s going well.” And who said after touring the convention center where thousands of Houstonians were taking refuge that, “We saw a lot of happiness.”
The foundation of Donald Trump’s presidency is the negation of Barack Obama’s legacy.
It is insufficient to statethe obvious of Donald Trump: that he is a white man who would not be president were it not for this fact. With one immediate exception, Trump’s predecessors made their way to high office through the passive power of whiteness—that bloody heirloom which cannot ensure mastery of all events but can conjure a tailwind for most of them. Land theft and human plunder cleared the grounds for Trump’s forefathers and barred others from it. Once upon the field, these men became soldiers, statesmen, and scholars; held court in Paris; presided at Princeton; advanced into the Wilderness and then into the White House. Their individual triumphs made this exclusive party seem above America’s founding sins, and it was forgotten that the former was in fact bound to the latter, that all their victories had transpired on cleared grounds. No such elegant detachment can be attributed to Donald Trump—a president who, more than any other, has made the awful inheritance explicit.
A trove of recently released documents confirms that Washington’s role in the country’s 1965 massacre was part of a bigger Cold War strategy.
In Indonesia in October 1965, General Suharto responded to the kidnapping and murder of six high-ranking military officers by accusing the Indonesian Communist Party (PKI) of organizing a brutal coup attempt. Over the months that followed, he oversaw the systematic extermination of up to a million Indonesians for affiliation with the party, or simply for being accused of harboring leftist sympathies. He then took power and ruled as dictator, with U.S. support, until 1998.
This week, the non-profit National Security Archive, along with the National Declassification Center, published a batch of U.S. diplomatic cables covering that dark period. While the newly declassified documents further illustrated the horror of Indonesia’s 1965 mass murder, they also confirmed that U.S. authorities backed Suharto’s purge. Perhaps even more striking: As the documents show, U.S. officials knew most of his victims were entirely innocent. U.S. embassy officials even received updates on the executions and offered help to suppress media coverage. While crucial documents that could provide insight into U.S. and Indonesian activities at the time are still lacking, the broad outlines of the atrocity and America’s role are there for anyone who cares to look them up.
A new study shows that families act on insufficient information when it comes to figuring out where to enroll their children.
A person trying to choose their next set of wheels might see that car A made it farther than car B in a road test and assume it gets better gas mileage. But that’s only true if the two tanks are filled with the same substance. Putting high-octane gas in one and water in the other, for example, provides little useful information about which car makes the most of its fuel. A new working paper titled “Do Parents Value School Effectiveness?” suggests that parents similarly opt for schools with the most impressive graduates rather than figuring out which ones actually teach best. The study joins a body of research looking critically at what it means for a school to be successful.
Take the work of Erin Pahlke, for example. The assistant professor of psychology at Whitman College saw research showing that girls who attend school only with other girls tend to do better in math and science. The trick, she said, is that those studies didn’t analyze “differences in the students coming into the schools.” As it turns out, those who end up in same-sex schools tend to be wealthier, start out with more skills, and have parents who are more proactive than students who attend co-ed institutions. In a 2014 meta-analysis, Pahlke and her colleagues reviewed the studies and found when examining schools with the same type of students and same level of resources—rather than “comparing [those at] the public co-ed school to [their counterparts at] the fancy private school that’s single-sex down the road”—there isn’t any difference in how the students perform academically. Single-sex schooling also hasn’t been shown to offer a bump in girls’ attitudes toward math and science or change how they think about themselves. In other words, it often looks like single-sex schools are doing a better job educating kids, but they aren't. It's just that their graduates are people who were going to do well at any school. They’re running on high-octane gas.
Her bubbly new Reputation track confirms that she’s trying on an edgier persona with a familiar musical swerve.
The drum beat that opened Taylor Swift’s 1989 made a slow, simple, statement: “1 … 2 … 3 … and 4!” at a pace roughly appropriate for lurching along in a grocery line, with a regularity that even the most drunken campfire-side clapper couldn’t mess up. The song, “Welcome to New York,” kicked off her supposed first “official pop album” with a portrait of glorious naivety. Swift was the country girl just arrived in the big city, amazed by all she saw: the lights, the sounds, the homosexuals. Her gait was accordingly untroubled, steady, optimistic: “It’s a new soundtrack / I could dance to this beat forevermore.”
The album that followed largely stayed in that shiny, straightforward mode. She was open-hearted yet unflappable, whether brushing off criticism (“Shake It Off”), lightly dressing the wounds of breakups (“All You Had to Do Was Stay”), or memorializing the thrill of a new relationship (“Out of the Woods”). Slabs of synth and driving, steady beats cast a movie-trailer glow of enchantment. Reviewers noted that this mode actually broke from recent pop trends, spurning the influence of hip-hop and R&B, as well as some of the grim moodiness creeping onto the charts. The video for “Shake It Off” even poked fun at the idea that Swift might start imitating Nicki Minaj like some of her contemporaries.