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.
Long after research contradicts common medical practices, patients continue to demand them and physicians continue to deliver. The result is an epidemic of unnecessary and unhelpful treatments.
First, listen to the story with the happy ending: At 61, the executive was in excellent health. His blood pressure was a bit high, but everything else looked good, and he exercised regularly. Then he had a scare. He went for a brisk post-lunch walk on a cool winter day, and his chest began to hurt. Back inside his office, he sat down, and the pain disappeared as quickly as it had come.
That night, he thought more about it: middle-aged man, high blood pressure, stressful job, chest discomfort. The next day, he went to a local emergency department. Doctors determined that the man had not suffered a heart attack and that the electrical activity of his heart was completely normal. All signs suggested that the executive had stable angina—chest pain that occurs when the heart muscle is getting less blood-borne oxygen than it needs, often because an artery is partially blocked.
Consolidated corporate power is keeping many products’ prices high and quality low. Why aren’t more politicians opposing it?
There are many competing interpretations for why Hillary Clinton lost last fall’s election, but most observers do agree that economics played a big role. Clinton simply didn’t articulate a vision compelling enough to compete with Donald Trump’s rousing, if dubious, message that bad trade deals and illegal immigration explain the downward mobility of so many Americans.
As it happens, Clinton did have the germ of exactly such an idea—if one knew where to look. In an October 2015 op-ed, she wrote that “large corporations are concentrating control over markets” and “using their power to raise prices, limit choices for consumers, lower wages for workers, and hold back competition from startups and small businesses. It’s no wonder Americans feel the deck is stacked for those at the top.” In a speech in Toledo last fall, Clinton assailed “old-fashioned monopolies” and vowed to appoint “tough” enforcers “so the big don’t keep getting bigger and bigger.”
In late 2015, in the Chilean desert, astronomers pointed a telescope at a faint, nearby star known as ared dwarf. Amid the star’s dim infrared glow, they spotted periodic dips, a telltale sign that something was passing in front of it, blocking its light every so often. Last summer, the astronomers concluded the mysterious dimming came from three Earth-sized planets—and that they were orbiting in the star’s temperate zone, where temperatures are not too hot, and not too cold, but just right for liquid water, and maybe even life.
This was an important find. Scientists for years had focused on stars like our sun in their search for potentially habitable planets outside our solar system. Red dwarfs, smaller and cooler than the sun, were thought to create inhospitable conditions. They’re also harder to see, detectable by infrared rather than visible light. But the astronomers aimed hundreds of hours worth of observations at this dwarf, known as TRAPPIST-1 anyway, using ground-based telescopes around the world and NASA’s Spitzer Space Telescope.
A $100 million gangster epic starring Robert De Niro, Al Pacino, and Joe Pesci has become too risky a proposition for major studios.
Martin Scorsese’s next project, The Irishman, is as close as you can get to a box-office guarantee for the famed director. It’s a gangster film based on a best-selling book about a mob hitman who claimed to have a part in the legendary disappearance of the union boss Jimmy Hoffa. Robert De Niro is attached to play the hitman, Al Pacino will star as Hoffa, and Scorsese favorites Joe Pesci and Harvey Keitel are also on board. After Scorsese branched into more esoteric territory this year with Silence, a meditative exploration of faith and Catholicism, The Irishman sounds like a highly bankable project—the kind studios love. And yet, the film is going to Netflix, which will bankroll its $100 million budget and distribute it around the world on the company’s streaming service.
Rod Dreher makes a powerful argument for communal religious life in his book, The Benedict Option. But he has not wrestled with how to live side by side with people unlike him.
Donald Trump was elected president with the help of 81 percent of white evangelical voters. Mike Pence, the champion of Indiana’s controversial 2015 religious-freedom law, is his deputy. Neil Gorsuch, a judge deeply sympathetic to religious litigants, will likely be appointed to the Supreme Court. And Republicans hold both chambers of Congress and statehouses across the country. Right now, conservative Christians enjoy more influence on American politics than they have in decades.
And yet, Rod Dreher is terrified.
“Don’t be fooled,” he tells fellow Christians in his new book, The Benedict Option. “The upset presidential victory of Donald Trump has at best given us a bit more time to prepare for the inevitable.”
Plagues, revolutions, massive wars, collapsed states—these are what reliably reduce economic disparities.
Calls to make America great again hark back to a time when income inequality receded even as the economy boomed and the middle class expanded. Yet it is all too easy to forget just how deeply this newfound equality was rooted in the cataclysm of the world wars.
The pressures of total war became a uniquely powerful catalyst of equalizing reform, spurring unionization, extensions of voting rights, and the creation of the welfare state. During and after wartime, aggressive government intervention in the private sector and disruptions to capital holdings wiped out upper-class wealth and funneled resources to workers; even in countries that escaped physical devastation and crippling inflation, marginal tax rates surged upward. Concentrated for the most part between 1914 and 1945, this “Great Compression” (as economists call it) of inequality took several more decades to fully run its course across the developed world until the 1970s and 1980s, when it stalled and began to go into reverse.
Neither truck drivers nor bankers would put up with a system like the one that influences medical residents’ schedules.
The path to becoming a doctor is notoriously difficult. Following pre-med studies and four years of medical school, freshly minted M.D.s must spend anywhere from three to seven years (depending on their chosen specialty) training as “residents” at an established teaching hospital. Medical residencies are institutional apprenticeships—and are therefore structured to serve the dual, often dueling, aims of training the profession’s next generation and minding the hospital’s labor needs.
How to manage this tension between “education and service” is a perennial question of residency training, according to Janis Orlowski, the chief health-care officer of the Association of American Medical Colleges (AAMC). Orlowski says that the amount of menial labor residents are required to perform, known in the profession as “scut work,” has decreased "tremendously" since she was a resident in the 1980s. But she acknowledges that even "institutions that are committed to education … constantly struggle with this,” trying to stay on the right side of the boundary between training and taking advantage of residents.
The preconditions are present in the U.S. today. Here’s the playbook Donald Trump could use to set the country down a path toward illiberalism.
It’s 2021, and President Donald Trump will shortly be sworn in for his second term. The 45th president has visibly aged over the past four years. He rests heavily on his daughter Ivanka’s arm during his infrequent public appearances.
Fortunately for him, he did not need to campaign hard for reelection. His has been a popular presidency: Big tax cuts, big spending, and big deficits have worked their familiar expansive magic. Wages have grown strongly in the Trump years, especially for men without a college degree, even if rising inflation is beginning to bite into the gains. The president’s supporters credit his restrictive immigration policies and his TrumpWorks infrastructure program.
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A conversation with Jeffrey D. Sachs, the renowned professor and author, about the future of prosperity and the end of us-versus-them politics
The 2016 election might seem like a death knell for liberals who dream that the United States might eventually come to resemble one of Europe’s social democracies. The Republican Party now controls the White House, both houses of Congress, and the majority of governorships and state legislatures.
But America’s youngest cohort of voters remains an underrated force for leftist economics. Burdened by student debt and the rising cost of housing and health care, this younger generation embraces a larger role for government. If, in a decade or two, today’s young liberal revolutionaries become the mainstream force in U.S. politics, Trump will have been a nativist paroxysm that merely delayed the inevitable evolution toward American social democracy.
You can tell a lot about a person from how they react to something.
That’s why Facebook’s various “Like” buttons are so powerful. Clicking a reaction icon isn’t just a way to register an emotional response, it’s also a way for Facebook to refine its sense of who you are. So when you “Love” a photo of a friend’s baby, and click “Angry” on an article about the New England Patriots winning the Super Bowl, you’re training Facebook to see you a certain way: You are a person who seems to love babies and hate Tom Brady.
The more you click, the more sophisticated Facebook’s idea of who you are becomes. (Remember: Although the reaction choices seem limited now—Like, Love, Haha, Wow, Sad, or Angry—up until around this time last year, there was only a “Like” button.)