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.
Demonizing processed food may be dooming many to obesity and disease. Could embracing the drive-thru make us all healthier?
Late last year, in a small health-food eatery called Cafe Sprouts in Oberlin, Ohio, I had what may well have been the most wholesome beverage of my life. The friendly server patiently guided me to an apple-blueberry-kale-carrot smoothie-juice combination, which she spent the next several minutes preparing, mostly by shepherding farm-fresh produce into machinery. The result was tasty, but at 300 calories (by my rough calculation) in a 16-ounce cup, it was more than my diet could regularly absorb without consequences, nor was I about to make a habit of $9 shakes, healthy or not.
Inspired by the experience nonetheless, I tried again two months later at L.A.’s Real Food Daily, a popular vegan restaurant near Hollywood. I was initially wary of a low-calorie juice made almost entirely from green vegetables, but the server assured me it was a popular treat. I like to brag that I can eat anything, and I scarf down all sorts of raw vegetables like candy, but I could stomach only about a third of this oddly foamy, bitter concoction. It smelled like lawn clippings and tasted like liquid celery. It goes for $7.95, and I waited 10 minutes for it.
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.
ISIS did not merely blast apart old stones—it attacked the very foundations of pluralistic society.
If the ruined ruins of Palmyra could speak, they would marvel at our shock. After all, they have been sacked before. In their mute and shattered eloquence, they spoke for centuries not only about the cultures that built them but also about the cultures that destroyed them—about the fragility of civilization itself, even when it is incarnated in stone. No designation of sanctity, by God or by UNESCO, suffices to protect the past. The past is helpless. Instead these ruins, all ruins, have had the effect of lifting the past out of history and into time. They carry the spectator away from facts and toward reveries.
In the 18th century, after the publication in London of The Ruins of Palmyra, a pioneering volume of etchings by Robert Wood, who had traveled to the Syrian desert with the rather colorful James Dawkins, a fellow antiquarian and politician, the desolation of Palmyra became a recurring symbol for ephemerality and the vanity of all human endeavors. “It is the natural and common fate of cities,” Wood drily remarked in one of the essays in his book, “to have their memory longer preserved than their ruins.” Wood’s beautiful and meticulous prints served as inspirations for paintings, and it was in response to one of those paintings that Diderot wrote some famous pages in his great Salons of 1767: “The ideas ruins evoke in me are grand. Everything comes to nothing, everything perishes, everything passes, only the world remains, only time endures. ... Wherever I cast my glance, the objects surrounding me announce death and compel my resignation to what awaits me. What is my ephemeral existence in comparison with that of a rock being worn down, of a valley being formed, of a forest that’s dying, of these deteriorating masses suspended above my head? I see the marble of tombs crumble into powder and I don’t want to die!”
In continuing to tinker with the universe she built eight years after it ended, J.K. Rowling might be falling into the same trap as Star Wars’s George Lucas.
September 1st, 2015 marked a curious footnote in Harry Potter marginalia: According to the series’s elaborate timeline, rarely referenced in the books themselves, it was the day James S. Potter, Harry’s eldest son, started school at Hogwarts. It’s not an event directly written about in the books, nor one of particular importance, but their creator, J.K. Rowling, dutifully took to Twitter to announce what amounts to footnote details: that James was sorted into House Gryffindor, just like his father, to the disappointment of Teddy Lupin, Harry’s godson, apparently a Hufflepuff.
It’s not earth-shattering information that Harry’s kid would end up in the same house his father was in, and the Harry Potter series’s insistence on sorting all of its characters into four broad personality quadrants largely based on their family names has always struggled to stand up to scrutiny. Still, Rowling’s tweet prompted much garment-rending among the books’ devoted fans. Can a tweet really amount to a piece of canonical information for a book? There isn’t much harm in Rowling providing these little embellishments years after her books were published, but even idle tinkering can be a dangerous path to take, with the obvious example being the insistent tweaks wrought by George Lucas on his Star Wars series.
Heather Armstrong’s Dooce once drew millions of readers. Her blog’s semi-retirement speaks to the challenges of earning money as an individual blogger today.
The success story of Dooce.com was once blogger lore, told and re-told in playgroups and Meetups—anywhere hyper-verbal people with Wordpress accounts gathered. “It happened for that Dooce lady,” they would say. “It could happen for your blog, too.”
Dooce has its origin in the late 1990s, when a young lapsed Mormon named Heather Armstrong taught herself HTML code and moved to Los Angeles. She got a job in web design and began blogging about her life on her personal site, Dooce.com.
The site’s name evolved out of her friends’ AOL Instant-Messenger slang for dude, or its more incredulous cousin, "doooood!” About a year later, Armstrong was fired for writing about her co-workers on the site—an experience that, for a good portion of the ‘aughts, came known as “getting dooced.” She eloped with her now ex-husband, Jon, moved to Salt Lake City, and eventually started blogging full time again.
Encouraging a focus on white identity is a dangerous approach for a country in which white supremacy has been a toxic force.
Donald Trump and the disaffected white people who make up his base of support have got me thinking about race in America. “Trump presents a choice for the Republican Party about which path to follow––” Ben Domenech writes in an insightful piece at The Federalist, “a path toward a coalition that is broad, classically liberal, and consistent with the party’s history, or a path toward a coalition that is reduced to the narrow interests of identity politics for white people.”
When I was growing up in Republican Orange County during the Reagan and Bush Administrations, lots of white parents sat their kids in front of The Cosby Show, explained that black people are just like white people, and inveighed against judging anyone by the color of their skin rather than the content of their character. The approach didn’t convey the full reality of race as minorities experience it. But it represented a significant generational improvement in race relations.
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.
When Kenneth Jarecke photographed an Iraqi man burned alive, he thought it would change the way Americans saw the Gulf War. But the media wouldn’t run the picture.
The Iraqi soldier died attempting to pull himself up over the dashboard of his truck. The flames engulfed his vehicle and incinerated his body, turning him to dusty ash and blackened bone. In a photograph taken soon afterward, the soldier’s hand reaches out of the shattered windshield, which frames his face and chest. The colors and textures of his hand and shoulders look like those of the scorched and rusted metal around him. Fire has destroyed most of his features, leaving behind a skeletal face, fixed in a final rictus. He stares without eyes.
On February 28, 1991, Kenneth Jarecke stood in front of the charred man, parked amid the carbonized bodies of his fellow soldiers, and photographed him. At one point, before he died this dramatic mid-retreat death, the soldier had had a name. He’d fought in Saddam Hussein’s army and had a rank and an assignment and a unit. He might have been devoted to the dictator who sent him to occupy Kuwait and fight the Americans. Or he might have been an unlucky young man with no prospects, recruited off the streets of Baghdad.
Some Republican candidates are promoting a policy change that would hurt workers by disguising it with a pleasant-sounding phrase.
Americans like their Social Security benefits quite a bit: They oppose cuts to them by a margin of two to one. Even Millennials, who won’t be seeing benefits anytime soon, feel protective of Social Security, according to a poll from the Pew Research Center.
One way to effectively cut Social Security benefits is to raise the age at which they kick in. And yet, when asked specifically about raising the retirement age, Americans are mixed.
Perhaps confusion arises because “raising the age of retirement” sounds like a nice jobs program for older Americans, or an end to forced retirement. I sympathize with that position: Anyone who wants to retire later and work into old age should have a job. But that’s not what raising the retirement age would entail—the fact is, raising the Social Security retirement age represents a reduction in benefits: Because the monthly payments a person receives grow bigger the later in life he or she retires, raising the age cutoff reduces the total amount of money paid out.