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.
The neurologist leaves behind a body of work that reveals a lifetime of asking difficult questions with empathy.
Oliver Sacks always seemed propelled by joyful curiosity. The neurologist’s writing is infused with this quality—equal parts buoyancy and diligence, the exuberant asking of difficult questions.
More specifically, Sacks had a fascination with ways of seeing and hearing and thinking. Which is another way of exploring experiences of living. He focused on modes of perception that are delightful not only because they are subjective, but precisely because they are very often faulty.
To say Sacks had a gift for this method of exploration is an understatement. He was a master at connecting curiosity to observation, and observation to emotion. Sacks died on Sunday after receiving a terminal cancer diagnosis earlier this year. He was 82.
Thicker ink, fewer smudges, and more strained hands: an Object Lesson
Recently, Bic launched acampaign to “save handwriting.” Named “Fight for Your Write,” it includes a pledge to “encourage the act of handwriting” in the pledge-taker’s home and community, and emphasizes putting more of the company’s ballpoints into classrooms.
As a teacher, I couldn’t help but wonder how anyone could think there’s a shortage. I find ballpoint pens all over the place: on classroom floors, behind desks. Dozens of castaways collect in cups on every teacher’s desk. They’re so ubiquitous that the word “ballpoint” is rarely used; they’re just “pens.” But despite its popularity, the ballpoint pen is relatively new in the history of handwriting, and its influence on popular handwriting is more complicated than the Bic campaign would imply.
In the name of emotional well-being, college students are increasingly demanding protection from words and ideas they don’t like. Here’s why that’s disastrous for education—and mental health.
Something strange is happening at America’s colleges and universities. A movement is arising, undirected and driven largely by students, to scrub campuses clean of words, ideas, and subjects that might cause discomfort or give offense. Last December, Jeannie Suk wrote in an online article for The New Yorker about law students asking her fellow professors at Harvard not to teach rape law—or, in one case, even use the word violate (as in “that violates the law”) lest it cause students distress. In February, Laura Kipnis, a professor at Northwestern University, wrote an essay in The Chronicle of Higher Education describing a new campus politics of sexual paranoia—and was then subjected to a long investigation after students who were offended by the article and by a tweet she’d sent filed Title IX complaints against her. In June, a professor protecting himself with a pseudonym wrote an essay for Vox describing how gingerly he now has to teach. “I’m a Liberal Professor, and My Liberal Students Terrify Me,” the headline said. A number of popular comedians, including Chris Rock, have stopped performing on college campuses (see Caitlin Flanagan’s article in this month’s issue). Jerry Seinfeld and Bill Maher have publicly condemned the oversensitivity of college students, saying too many of them can’t take a joke.
The Islamic State is no mere collection of psychopaths. It is a religious group with carefully considered beliefs, among them that it is a key agent of the coming apocalypse. Here’s what that means for its strategy—and for how to stop it.
What is the Islamic State?
Where did it come from, and what are its intentions? The simplicity of these questions can be deceiving, and few Western leaders seem to know the answers. In December, The New York Times published confidential comments by Major General Michael K. Nagata, the Special Operations commander for the United States in the Middle East, admitting that he had hardly begun figuring out the Islamic State’s appeal. “We have not defeated the idea,” he said. “We do not even understand the idea.” In the past year, President Obama has referred to the Islamic State, variously, as “not Islamic” and as al-Qaeda’s “jayvee team,” statements that reflected confusion about the group, and may have contributed to significant strategic errors.
On the desperation behind the migrant tragedy in Austria
On Thursday, as Krishnadev Calamur has been tracking in The Atlantic’s new Notes section, Austrian authorities made a ghastly discovery: a truck abandoned in the emergency lane of a highway near the Hungarian border, packed with the decomposing bodies of 59 men, eight women, and four children. They are thoughtto be the corpses of migrants who suffocated to death, perhaps two days earlier, in the bowels of a vehicle whose back door was locked shut and refrigeration and ventilation systems weren’t functional. Stray identity documents suggest that at least some of the victims were Syrian—refugees from that country’s brutal civil war. The truck featured an image of a chicken and a slogan from the Slovakian poultry company that the lorry once belonged to: “I taste so good because they feed me so well.”
Protofeather fossils discovered entombed in amber from the Late Cretaceous era support theories of dinosaur and avian evolution
Protofeather fossils discovered entombed in amber from the Late Cretaceous era support theories of dinosaur and avian evolution -- and make for one beautiful gallery
Dinosaur and bird feathers preserved in amber from a Late Cretaceous site in Canada reveal new insights into the structure, function, and color of animals that date back to about 78 million years ago.
Researchers led by University of Alberta paleontologist Ryan McKellar say these specimens represent distinct stages of feather evolution, from early-stage, single filament protofeathers to much more complex structures associated with modern diving birds. After analyzing the preserved pigment cells, the authors add that these feathered creatures may have also had a range of transparent, mottled, and diffused colors, similar to birds today. They can't determine which feathers belonged to birds or dinosaurs yet, but they did observe filament structures that are similar to those seen in other non-avian dinosaur fossils. Their findings appear in the current issue of the journal Science.
A new study pinpoints the Facebook status updates that irk us to the point of no return.
In the 1997 movie Romy and Michele’s High School Reunion, the two title characters, worried that they haven’t done anything noteworthy to share at said reunion, decide instead to lie and claim they invented Post-it notes.
Their story quickly unravels, of course, but had the movie been made a decade later, even the very concept of the ruse would have been impossible. Everyone would have known about Romy’s daily slog at the Jaguar dealership through Facebook.
Or would they?
The ebb and flow of Facebook friendships has become fruitful territory for social scientists in recent years. At least 63 percent of people report having unfriended someone on Facebook, but what prompts these digital rejections can tell us a lot about both the nature of real-life friendship and about how we manage our online personalities.
This is a low-stress way to ease back into the ancient art of blogging. Our leaders, from J.J. Gould to Chris Bodenner, have explained the logic behind this new feature on The Atlantic’s site here. My colleagues, including Ta-Nehisi Coates and Jeffrey Goldberg, have gotten into the swing of things as you will read.
What it's like to look for romance when "a big smile can be frightening"
The way to Paulette's heart is through her Outlook calendar. “Honestly, if you want to be romantic with me, send an email through Outlook and give me all the possible dates, locations, and times, so that I can prepare,” she said.
The former Miss America system contestant and University of Cincinnati College-Conservatory of Music-trained opera singer knew she had a different conception of romance than her previous boyfriends had and, for that matter, everyone else.
“People tend to think of romance as spur of the moment and exciting,” she told me. “I think of romance as things that make sense and are logical.” However, she didn't know why until this year when, at the age of 31, when she was diagnosed with autism.
Grasses—green, neatly trimmed, symbols of civic virtue—shaped the national landscape. They have now outlived their purpose.
The hashtag #droughtshaming—which primarily exists, as its name suggests, to publicly decry people who have failed to do their part to conserve water during California’s latest drought—has claimed many victims. Anonymous lawn-waterers. Anonymous sidewalk-washers. The city of Beverly Hills. The tag’s most high-profile shamee thus far, however, has been the actor Tom Selleck. Who was sued earlier this summer by Ventura County’s Calleguas Municipal Water District for the alleged theft of hydrant water, supposedly used to nourish his 60-acre ranch. Which includes, this being California, an avocado farm, and also an expansive lawn.
The case was settled out of court on terms that remain undisclosed, and everyone has since moved on with their lives. What’s remarkable about the whole thing, though—well, besides the fact that Magnum P.I. has apparently become, in his semi-retirement, a gentleman farmer—is how much of a shift all the Selleck-shaming represents, as a civic impulse. For much of American history, the healthy lawn—green, lush, neatly shorn—has been a symbol not just of prosperity, individual and communal, but of something deeper: shared ideals, collective responsibility, the assorted conveniences of conformity. Lawns, originally designed to connect homes even as they enforced the distance between them, are shared domestic spaces. They are also socially regulated spaces. “When smiling lawns and tasteful cottages begin to embellish a country,” Andrew Jackson Downing, one of the nation’s first landscaper-philosophers, put it, “we know that order and culture are established.”