Month: November 2013

Climate Crisis: “Carbon Buster” Bricks

carbon_busterReducing our “carbon footprint” as a society – i.e. finding ways to consume less energy and generate less pollution – is at an all time high in the industrialized world. But for researchers and scientists hoping to avert the worst effects of Climate Change, the real challenge is finding ways to meet human needs that will either be carbon-neutral, or that consume more than they create.

This is the logic behind process like Carbon Capture, the “Smog Vacuum” and now, carbon negative building materials such as the “Carbon Buster”. Basically, it’s a brick that’s partially composed  of wood from old doors and windows (35% to be exact). In addition, it contains nasty pollutants that used to go into the air. But most important of all, more CO2 is locked inside than was emitted during the brick’s production and transport.

carbon_buster1The block is manufactured by a company in the east of England known as Lignacite, a company that has been making products from wood for 65 years. Lignacite recently partnered with another company named Carbon 8, another Suffolk-based company that converts noxious fumes from waste incinerators and combined with CO2, cement and sand to create aggregate.

To create the bricks, this aggregate is mixed with wood shavings from Lignacite’s plant, and Carbon Busters are born. Each one is composed of 50% recycled material and locks in about 14 kg (31 pounds) of carbon dioxide, which includes the CO2 the original trees took in during photosynthesis, and the CO2 captured in the aggregate-making process.

Carbon_Negative_CementGranted, the bricks aren’t exactly aesthetically appealing. But they are relatively lightweight, suitable for even the biggest construction projects, and more fire-resistant than blocks made from stone, which crack and crumble at high temperatures. Since the wood inside these bricks is not exposed to oxygen, they will not burn, but simply calcify and blacken when exposed to fire.

Giles de Lotbiniere, Lignacite’s chairman, claims that so far, roughly 600 homes have been built in the Suffolk area near where the Lignacite plant is situated. He also indicated that they sell at a 5% premium compared to conventional bricks. And while there is currently resistance to using aggregate and wood-based materials on an international scale, de Lothbiniere believes the market will expand in coming years:

Over the years, we’ve wondered if we want to continue making blocks out of wood. Each time we’ve found another reason to do it. Now, with climate change, we’ve found another one.

carbon_buster2But of course, the market for carbon negative materials is already becoming an interesting and diversified place. Just two years ago, Material ConneXion unveiled its own carbon-negative product – a carbon-negative cement composed of magnesium silicate that not only requires less heating, but it is also able to absorb CO2 from the environment as it hardens.

And then there’s Hemcrete, a bio-composite, thermal walling material made from hemp, lime and water that represents an alternative to fiberglass as an insulating material. Much like these other carbon-negative materials, more CO2 is locked-up in the process of growing and harvesting the hemp than is released in the production, and the product is 100% recyclable.

Taken together, materials like these are likely to revolution the construction industry in the coming years, an industry which currently accounts for roughly 38% of the CO2 emissions in the industrialized world.

Sources: fastcoexist.com, inhabitat.com, (2), freshome.com

News From Space: More Happening on Mars!

marsIt seems like weeks since the Red Planet has been featured in the news. But that’s to be expected when the two biggest news makers – the Opportunity and Curiosity rovers – are either performing a long drive or climbing a tall mountain. Not much in the way of updates are expected, unless something goes wrong. Luckily, these rovers always find ways to surprise us.

After over a year on Mars, Curiosity has accomplished a long list of firsts. This latest occurred last week, when NASA announced that Curiosity picked up the pace of its long trek to Mount Sharp by completing its first two-day autonomous drive, in which the rover did one leg of an autonomous drive on Sunday, then completed it on Monday.

mars_scapePreviously, Curiosity’s autonomous drives were only executed after finishing a drive planned by mission control on Earth using images supplied by Curiosity. These images would then be uploaded its on board computer, and the rover would compare them with images taken by its navigation camera to plot a safe path. The drive completed Monday is the first where the rover ended an autonomous drive on one day, then continued it the next day by itself.

This is all thanks to the incorporation of the new autonomous navigation (or autonav) software, which NASA finished incorporating and debuted at the end of August. According to NASA, this new system not only allows the rover to drive itself for longer stretches of time, it also allows mission control to plan activities for several days, which could be implemented on Fridays and before holidays so the rover can continue to work while the staff are away.

curiosity_hirise_tracksAccording to NASA, on Sunday, the new software allowed Curiosity to drive about 55 m (180 ft) along a path planned by mission control, then switched to autonomous mode and traveled another 38m (125 ft) with the rover selecting waypoints and the safest path. It then stored navigation variables in its non-volatile memory, then reloaded them on Monday to drive another 32 m (105 ft).

In all, Curiosity covered about 125 meters (410 ft) in total. This brought it within about 80 m (262 ft) from “Cooperstown,” a rocky outcrop where the rover will be conducting another series of scientific examinations. These will be the first time that Curiosity has had the opportunity to use its arm-mounted instruments since September 22.

mountsharp_galecraterAccording to Kevin Lewis of Princeton University, who spoke about the upcoming studies in “Cooperstown”:

What interests us about this site is an intriguing outcrop of layered material visible in the orbital images. We want to see how the local layered outcrop at Cooperstown may help us relate the geology of Yellowknife Bay [on Mars] to the geology of Mount Sharp.

This stop will be only brief, as the rover team are anxious to get Curiosity back on its way to Mount Sharp. Once there, it will begin digging, drilling and generally seeking out the vast caches of minerals that the mountain is expected to have, ones which could potentially support a habitable environment. Exciting times ahead!

Sources: gizmag.com, jpl.nasa.gov

News from Space: First Earth-Sized Exoplanet Found!

kepler78bFor the past three and a half years, the Kepler space telescope has been hurtling through space and searching the Milky Way for signs of of other planets orbiting distant stars. In that time, Kepler has identified many Earth-like exoplanets, many of which reside within our own stellar neighborhood. However, it has found only one planet in recent months that is Earth-sized.

That planet is known as Kepler-78b, the existence of of which was recently verified by NASA scientists at Cape Canaveral. Of all the planets discovered beyond our Solar System, this one is both rocky in composition and weighs in at roughly 1.2 times Earth’s mass. Beyond that, however, the similarities between this planet and our own end.

kepler78b2In addition to having an orbital period of 8.5 hours, the planet also rotates around its parent star at a distance of about 1.5 million kilometers (approx. 93205 miles). Basically, this means that Kepler-78b is thirty to forty-five times closer to its Sun than Mercury is to ours, and experiences a full year in under nine days. This makes Kepler 78b an extremely hostile environment, unsuitable for life as we know it.

Andrew Howard, of the University of Hawaii at Manoa’s Institute for Astronomy and the lead author on one of two papers published in Nature magazine about the discovery of the new planet, said in recent webcast:

We’ve been hearing about the sungrazing Comet ISON that will go very close to the Sun next month. Comet ISON will approach the Sun about the same distance that Kepler-78b orbits its star, so this planet spends its entire life as a sungrazer.

Kepler78b1A handful of planets the size or mass of Earth have been discovered, but Kepler-78b is the first to have both a measured mass and size. At 1.2 times the size of Earth with a diameter of 14,800 km (9,200 miles), astronomers say it has a density similar to Earth’s, which suggests an Earth-like composition of iron and rock. Its star is slightly smaller and less massive than the sun and is located about 400 light-years from Earth in the constellation Cygnus.

Verification of the planet’s existence and characteristics was made by two independent research teams that used ground-based telescopes for follow-up observations. The team led by Howard used the W. M. Keck Observatory atop Mauna Kea in Hawaii. The other team led by Francesco Pepe from the University of Geneva, Switzerland, did their ground-based work at the Roque de los Muchachos Observatory on La Palma in the Canary Islands.

exoplanet_hotAnd while the discovery is exciting, the close proximity of Kepler-78b to its star poses a challenge to theorists. According to current theories of planet formation, it couldn’t have formed so close to its star, nor could it have moved there. Given that its star would have surely been larger when the system was in formation, Kepler-78b’s orbit would have put in inside the swollen star. Hence, the planet’s existence is an enigma.

To make matters worse, Kepler-78b is a doomed world. Gravitational tides will continue to pull Kepler-78b even closer to its star, and eventually it will move so close that the star’s gravity will rip the world apart. Theorists predict that the planet will vanish within three billion years. And while this may sounds like an eternity to us, in astronomical terms it represents a life cut short.

Source: universetoday.com, nature.com

Judgement Day Update: Deep Learning and AIs

brain_chip2Moore’s Law, a sort of general law of computing that was coined by Intel co-founder Gordon E. Moore, states that the number of transistors on integrated circuits doubles approximately every two years. In accordance with this observation, which was made back in 1965, computers have evolved to the point where they are over 650 times faster than they were in the early 1970’s.

Given this trend, scientists and futurists have long suspected that it is only a matter of time before computers surpass human beings in terms of raw intelligence. Already, supercomputers like IBM’s Watson, University of Illinois’ “Blue Waters”, and MIT’s ConceptNet 4 have demonstrated that they are superior in terms of raw knowledge and retention. But when it comes to actual thinking – i.e. independent reasoning and common sense – they are seriously lacking.

IBM_Blue_Gene_P_supercomputerYes, despite all the progress made in the field of computing in the past 40 years, bridging that gap between computational power and artificial intelligence has remained elusive. And at this point, no one is quite sure what it will take to make that leap happen. However, a number of developers and designers are coming up with breakthroughs that may constitute a small jump.

One such breakthrough comes from Standford University, where computer engineers have come up with a new algorithm that could give computers the power to more reliably interpret language. Called Neural Analysis of Sentiment – or NaSent for short – the algorithm seeks to improve on current methods of written language analysis by drawing inspiration from the human brain.

AI_picNaSent is part of a movement in computer science known as deep learning, a new field that seeks to build programs that can process data in much the same way the brain does. According to Richard Socher, the Stanford University grad student who helped develop NaSent:

In the past, sentiment analysis has largely focused on models that ignore word order or rely on human experts. While this works for really simple examples, it will never reach human-level understanding because word meaning changes in context and even experts cannot accurately define all the subtleties of how sentiment works. Our deep learning model solves both problems.

Socher was joined by artificial-intelligence researchers Chris Manning, a Professor of Computer Science and Linguistics at Standford, and Andrew Ng, one of the engineers behind Google’s deep learning project and who is working on creating the “Google Brain”.  Their aim is to develop algorithms that can operate without continued help from humans.

word_cloudWhat sets this algorithm apart is its ability to identify the meaning of words in the context of phrases and sentences. This is a big change from previous methods of sentiment analysis which have been limited to parsing through a collection of words and ranking them as either positive or negative without taking word order into account.

To create NaSent, Socher and his team used 12,000 sentences taken from the movie reviews website Rotten Tomatoes. They split these sentences into roughly 214,000 phrases that were labeled as very negative, negative, neutral, positive, or very positive, and then they fed this labeled data into the system, which NaSent then used to predict whether sentences were positive, neutral or negative on its own.

metadataAccording to the researchers, NaSent is about 85 percent accurate, a 5% improvement over previous models. However, Socher and his team are working on increasing that rate of success by feeding the system more data from Twitter and the Internet Movie Database, and have also set up a live demo where people can type in their own sentences.

And whereas the field of deep learning began in the academic world, it has since spread to web giants such as Google and Facebook. In both cases, the companies have taken to hiring people familiar with the field to help them sort through the growing mountains of data they are indexing to help them improve their products, particularly those that already rely on machine learning.

In Google’s case, these include voice recognition technology, as well as their ongoing work in neural networks. In the case of Facebook, they are looking to deep learning to help them improve Graph Search, a search engine that allows people to search activity on their network. This presents a challenge, mainly because machines have a hard time interpreting the nuances of human language. Just ask Watson, IBM’s own supercomputer!

Sources: wired, (2), (3), engineering.stanford.edu

Creating Dark Matter: The DarkLight Project

https://i0.wp.com/scienceblogs.com/startswithabang/files/2011/08/dark_matter_millenium_simulation.jpegFor several decades now, the widely accepted theory is that almost 27% of the universe is fashioned out of an invisible, mysterious mass known as “dark matter”. Originally theorized by Fritz Zwicky in 1933, the concept was meant to account for the “missing mass” apparent in galaxies in clusters. Since that time, many observations have suggested its existence, but definitive proof has remained elusive.

Despite our best efforts, no one has ever observed dark matter directly (nor dark energy, which is theorized to make up the remaining 68% of the universe). It’s acceptance as a theory has been mainly due to the fact that it makes the most sense, beating out theories like Modified Newtonian Dynamics (MOND), which seek to redefine the laws of gravity as to why the universe behaves the way it does.

https://i0.wp.com/www.extremetech.com/wp-content/uploads/2013/04/cdms.jpgLuckily, MIT recently green-lighted the DarkLight project – a program aimed at creating tiny tiny amounts of dark matter using a particle accelerator. In addition to proving that dark matter exists, the project team has a more ambitious goal of figuring out dark matter behaves – i.e. how it exerts gravitational attraction on the ordinary matter that makes up the visible universe.

The leading theory for dark matter used to be known as WIMPs (weakly interacting massive particles). This theory stated that dark matter only interacted with normal matter via gravity and the weak nuclear force, making them very hard to detect. However, a recent research initiative challenged this view and postulates that dark matter may actually consist of massive photons that couple to electrons and positrons.

https://i0.wp.com/www.extremetech.com/wp-content/uploads/2013/10/prototype-a-prime-dark-matter-detector.jpgTo do this, DarkLight will use the particle accelerator at the JeffersonJefferson Lab’s Labs Free-Electron Laser Free Electron Lase in Virginia to bombard an oxygen target with a stream of electrons with one megawatt of power. This will be able to test for these massive photons and, it is hoped, create this theorized form of dark matter particles. The dark matter, if it’s created, will then immediately decay into two other particles that can be (relatively) easily detected.

At this point, MIT estimates that it will take a couple of years to build and test the DarkLight experiment, followed by another two years of smashing electrons into the target and gathering data. By then, it should be clear whether dark matter consists of A prime particles, or whether scientists and astronomers have barking up the wrong tree these many years.

https://i0.wp.com/scienceblogs.com/startswithabang/files/2012/12/sim3dnew.pngBut if we can pinpoint the basis of dark matter, it would be a monumental finding that would greatly our enhance our understanding of the universe, and dwarf even the discovery of the Higgs Boson. After that, the only remaining challenge will be to find a way to observe and understand the other 68% of the universe!

Source: extremetech.com

The Future of Education: Facial Recognition in the Classroom

https://i0.wp.com/edudemic.com/wp-content/uploads/2012/07/intel-bridge-the-gap.pngFor some time now, classroom cameras have been used to see what teachers do in the course of their lessons, and evaluate their overall effectiveness as educators. But thanks to a recent advances in facial recognition software, a system has been devised that will assess teacher effectiveness by turning the cameras around and aiming at them at the class.

It’s what’s known as EngageSense, and was developed by SensorStar Labs in Queens, New York. It begins by filming student’s faces, then applying an algorithm to assess their level of interest. And while it might sound a bit Big Brother-y, the goal is actually quite progressive. Traditional logic has it that by filming the teacher, you will know what they are doing right and wrong.

https://i0.wp.com/f.fastcompany.net/multisite_files/fastcompany/imagecache/slideshow_large/slideshow/2013/10/3018861-slide-makerfaire1.jpgThis system reverses that thinking, measuring reactions to see how the students feel and react, measuring their level of interest over time to see what works for them and what doesn’t. As SensorStar Labs co-founder Sean Montgomery put it:

This idea of adding the cameras and being able to use that information to assist teachers to improve their lessons is already underway. Where this is trying to add a little value on top of that is to make it less work for the teachers.

Montgomery also emphasized that the technology is in the research and development research and development  phase. In its current form, it uses webcams to shoot students’ faces and computer vision algorithms to analyze their gaze – measuring eye movement, the direction they are facing, and facial expressions. That, coupled with audio, can be transformed into a rough, automated metric of student engagement throughout the day.

https://i0.wp.com/endthelie.com/wp-content/uploads/2012/08/facial-recognition-data-points.jpgAfter a lesson, a teacher could boot up EngageSense and see, with a glance at the dashboard, when students were paying rapt attention, and at what points they became confused or distracted. Beyond that, the concept is still being refined as SensorStar Labs looks both for funding and for schools to give EngageSense a real-world trial.

The ultimate goal here is to tailor lessons so that the learning styles of all students can be addressed. And given the importance of classroom accommodation and the amount of time dedicated to ensuring individual student success, a tool like this may prove very useful. Rather than relying on logs and spreadsheets, the EngageSense employs standard computer hardware that simplifies the evaluation process over the course of days, weeks, months, and even years.

https://i0.wp.com/image.slidesharecdn.com/technologyandeducation2-110922110134-phpapp01/95/slide-1-728.jpgAt the present time, the biggest obstacle would definitely be privacy concerns. While the software is designed for engaging student interest right now, it would not be difficult at all to imagine the same technology applied to police interrogations, security footage, or public surveillance.

One way to assuage these concerns in the classroomstudents, according to Montgomery, is to make the entire process voluntary. Much in the same way that smartphone apps ask permission to access your GPS or other personal data, parental consent would be needed before a child could be recorded or their data accessed and analyzed.

Sources: fastcoexist.com, labs.sensorstar.com

The Walking Dead: Season Four (Episodes 1-3)

Well, its been three weeks, and season four of one of TV’s top rated shows right now is back in full swing. And while I wanted to get on the episodes soon as they started coming out, circumstances kind of got in the way. First I was away for a week, then I took the time to write about other things, and then the episodes began piling up. That’s when the procrastination started settling in…

However, now that we are three full episodes into the season and I’ve finally managed to watch them, I feel I’ve gotten a pretty good take on what the story arc for season four is so far. And having recently read all issues to date of Robert Kirkman’s The Walking Dead, I was able to spot all the big differences, and you can bet I will be pointing them out! So without further delay or ado, I give you season four of AMC’s The Walking Dead!

https://i0.wp.com/i2.cdnds.net/13/14/618x374/ustv-the-walking-dead-s03-e16-3.jpgTo recap a little first, I would reiterate that last season’s finale was a big letdown to me. Myself and many fans lamented the fact that after many episodes of building up to a climactic clash between Woodbury and the prison camp, the final battle was quite the fizzle. Not only were the Governor’s people routed rather easily from the prison, but the Governor himself then went batsh*t crazy, shot everybody, and then ran off into the wilderness.

This, plus the fact that Rick and his people then traveled to Woodbury and brought the remaining townspeople back to the prison to live with them represented a major departure from the original comics. As a result, I really wasn’t sure what to expect from the new season. On the one hand, it held the promise of the unexpected; but on the other, it would certainly be more of a departure from the original material.

30 Days Without An Accident:
https://i0.wp.com/comicbook.com/wp-content/uploads/2013/09/the-walking-dead-season-4-rick-grimes-walkers.jpgThe season opens with a look at a seriously changed prison, which has been augmented with new buildings in the courtyard to accommodate the new people. The new arrivals appear to have been integrated, teams comb the fence to kill Walkers, and Daryl is getting ready to make another run to town for supplies. He is joined by Glenn, Tyreese, Sasha, a young man named Zack and a former army medic named Bob.

They set out for town to check a major department store called Big Spot, the parking of lot of which had been turned into an army checkpoint. The camp was since overrun by Walkers which they managed to lure away with loud music, and they go in to sweep the store. Unbeknownst to them, the roof is crawling with Walkers and was the site of a chopper crash.

https://i0.wp.com/wac.450f.edgecastcdn.net/80450F/screencrush.com/files/2013/10/Untitled.jpgAfter Bob causes some shelves to fall over and pin him down, Walkers hear them inside and begin converging on a weak spot in the roof. They then begin to fall through, and Daryl in the others are forced to fight them off while trying to free Bob from where he was pinned. Zack (Beth’s boyfriend) is bitten, but the rest manage to escape before the wreckage of the chopper falls through the roof and causes the building to collapse.

Meanwhile, Rick heads out to the forest to check their snares for dead animals. He is convinced by Hershel and the Council to take his gun for his own safety, and find a woman on the other side who appears to be uninfected. She tells him she and her husband have been on their own, and asks permission to join Rick’s camp. He tentatively agrees, but only after he meets her husband.

https://i0.wp.com/images.amcnetworks.com/amctv.com/wp-content/uploads/2013/05/twd-s4-first-look-590.jpgWhen they arrive at her camp, she tries to kill Rick but fails. He realizes her husband is now a Walker and she was simply luring him back so she could feed him something living. She then begs Rick not to kill once she’s turned, and stabs herself in the stomach. She dies saying that “you can’t come back from the things you’ve done”, and Rick leaves her and her Walker husband behind.

Back at camp, Carl is left with the other children, much to his chagrin. Car overhears Carol telling them a story before moving on to how to use a knife. When Carol sees Carl watching, she asks him not to tell Rick, and he leaves. The others return to camp, Glenn and Beth talk about having a baby, and Beth is told of Zack’s death. She goes to a chart she’s made that says “Days without an accident” and resets it to zero.

https://i0.wp.com/scifi.grande-caps.net/gallery/albums/userpics/10001/normal_twd401.pngRick returns and talks to Hershel about the woman he encountered, and how she reminded him of how far he came to losing it as she did. Hershel assures him that “you do get to come back”, and reminds him of how and Carl have. In the prison showers, one of the new arrivals – a boy named Patrick – succumbs to an illness that’s been effecting the livestock and comes back as a Walker.

Infected:
https://i0.wp.com/i2.cdnds.net/13/43/618x411/ustv-the-walking-dead-s04-e02-7.jpgThe episode opens with Karen (a new arrival) and Tyreese having a romantic evening, before she decides to head back to her room. Patrick, now a Walker, follows her from the shower room to D block. He hears a man coughing from another cell, enters his room and kills him in his sleep. The man then turns, and begins stalking the Block with Patrick and attacking others.

Rick and Carl are outside tending to the pigs and crops while Michonne is about to make another sweep for the Governor. Word then reaches them that Walkers are inside the perimeter and they run to D Block to kill those who are have turned while getting the others out. Maggie and Carl fight to get Michonne back inside after she hurts herself dealing with several Walkers.

http://i1.wp.com/nerdbastards.com/wp-content/uploads/2013/10/the-walking-dead-infected-2.jpg?w=450Afterward, they examine Patrick’s body with the help of Dr. Subramanian and notice that he died of an illness that causes bleeding from the eyes. Having seen this before, with Walkers along the fenceline as well as pigs and birds in and around the camp, they reason that it is a flu strain that it is transmitted from swine and birds, and that it’s loose in the prison.

As they bury the dead, the Council begins to discuss what to do since everyone in D Block has been exposed. Karen is one such person, and she and the others are quarantined in Death Row while Dr. Subramanian tends to them. One of the fathers who died left two daughters behind  – LIzzy and Mika – who Carol has promised to look after, and worries that they have been exposed to.

https://i0.wp.com/geeksmash.com/wp-content/uploads/2013/10/The-Walking-Dead-Infected-Wall.jpgMeanwhile, the commotion caused by the outbreak draws more Walkers to the wall and a section begins to give.  Sasha noticed that someone has been leaving bait in that section to lure the Walkers to it. The wall nearly collapses, and Rick and Daryl drive out and drop all the pigs in the field to lure the Walkers away. This gives them the time they need to reinforce the wall, and disposes of the pigs which may have brought the flu.

Afterward, Rick sets the pig pen on fire and Carl tells him that Carol has been teaching the kids to use weapons without their parents knowing. He also tells him that he agrees with it, and asks his father to let her continue, which he does. Rick gives Carl back his gun, which he had been keeping away from him since he shot the boy from Woodbury.

While clearing the fence, Inside, Tyreese goes to visit Karen and finds a blood trail that leads outside. He realizes that she already succumbed to the flu and was placed outside with one other person, where they were both doused in gasoline and burned.

Isolation:
https://i0.wp.com/s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_article_large/public/2013/10/25/walking-dead.jpgRick, Daryl and Carol join Tyreese in the courtyard where he found the charred remains of Karen and David. He demands the Rick find out who did it and then let him deal with them personally, and he and Rick get into a terrible fight. Afterward, Rick is tended to by Hershel who tells him that they’ve lost 12 people from the flu, plus the two who were burned, and an outbreak may be likely.

Sasha and Dr. Subramanian have also become infected, and the Council begins turning into Cell Block A into an isolation area. The administrative area is set aside for the most vulnerable, which includes the children and the elderly. Hershel tells them they need to go to the local veterinary college for antibiotics, and Daryl agrees to take a search party out to check on it.

https://i0.wp.com/i2.cdnds.net/13/44/618x399/ustv-the-walking-dead-s04-e03-infected-11.jpgRick apologizes to Tyreese after the latter if finished burying Karen and David, and they agree to bury the hatchet. Tyreese once again reiterates that Rick needs to find the guilty party, and decides to look on his own since Rick appears to be dragging his heels on it. Carl joins the other kids in the sequestered area, and Glenn realizes he’s been infected too.

Carol helps the infected move to the quarantine zone and begins to crack after she is forced to admit Lizzy. Hershel goes out into the woods with Carl and collects elderberries to make medicinal tea. Rick and Maggie try to prevent him from going into the quarantine zone, but he insists that he would rather risk his life and help people rather than sit idly by.

https://i0.wp.com/tibs.threeifbyspace.netdna-cdn.com/wp-content/uploads/2013/10/TWD403_ZombieCrowdWide.jpgRick begins investigating Karen and David’s deaths and determines they were still alive when they were burnt. Carol discovers that their water lines have become clogged and defies Rick to go out and clear them. In time, her activities draw the attention of Walkers and Rick runs out to help her. She narrowly makes it back and Rick asks her if she killed Karen and David, to which she says yes.

After visiting with Sasha, Tyreese decides to accompany Daryl, Michonne and Bob as they make their run. They take a car and drive to town, during which time they hear a voice broadcasting on the radio. Unfortunately, the distraction causes them to drive into a herd of Walkers and the car becomes surrounded. Tyreese is enveloped and fights it out with his hammer, giving the rest time to flee. They run into the forest, and are followed shortly behind by an exhausted Tyreese.

Summary:
Okay, so three episodes in, and I’m already beginning to notice a bit of a pattern. At the tail end of last season, the prison camp emerged victorious from the fight with the Governor and several dozen extras were added to the cast – which as I’ve said represented a major departure from the original comics. This season, the goal appears to be to find ways to kill the extras off and make the core cast leave the prison behind.

That much was already hinted at from the previews released over the summer. And it makes me wonder just why it was necessary to end season three the way the did. Why give the characters a big happy ending that’s way off script if at the beginning of next season, you’re just going to hit them with a thousand and one calamities and make their lives miserable again?

https://i0.wp.com/i.imm.io/XpTj.pngWhat’s more, there’s the issue of who they’ve chosen to kill off versus keep alive. I can understand the decision to pad the cast with extras so they can be killed off and the core characters kept alive, but that’s not even what’s happening  here. At this point in the comic’s story, Andrea and Dale were still alive, but in season two and three of the show, they were both killed off.

Tyreese, Hershel and Carol were dead at this point too, but the former had been around since very early in the story. Now, we are just getting to know the man, and he really doesn’t seem much like his comic book self. Sure, they decided to keep his dark side which comes through in occasional explosions of violence. But otherwise, he seems like a real soft touch, not wanting to kill Walkers and hoping to stay away from it.

https://i0.wp.com/wac.450f.edgecastcdn.net/80450F/screencrush.com/files/2013/10/0-Main.jpgSome things they did manage to get right about Tyreese though. The way he fought off an entire herd of Walkers using only his hammer is reminiscent of the scene from Volume Four: The Heart’s Desire where he cleared the entire prison gymnasium by himself. And the way he and Rick fought in the same episode echoes what happened later in that same volume.

However, Carol’s character arc is going weird places. After being relatively marginalized last season, she has now taken on a weird dimension, becoming obsessed with protecting the others to the point that she is willing to immolate two living people. While she does possess some of aspects of the woman from the comic, I feel like they are just trying to pad her character now.

https://i0.wp.com/www.hollywoodreporter.com/sites/default/files/imagecache/thumbnail_570x321/2013/09/twds4_key-art.jpgBut all in all, I think its pretty obvious where things are going this season. Soon enough, the entire Woodbury crew, minus a few people – like Bob, who they seem intent on developing – are going to die off, they will find a traitor in their midst (possibly the Governor himself sneaking in at night), the prison is going to start falling apart, and they are going to have to relocate.

And I think that’s kind of a waste. After saving the place and building it up, they are going to simply abandon it? After adding all those new people to their community, they’re going to just die off? Kind of seems contrived to me. But at the same time, its kind of necessary if they are going to bring the plot of the show and the comic into parity again.

They’re into Volume Nine: Here We Remain territory now, where the prison was no longer their home and they had to take their chances in the wild again. And with that, I remain interested to see what they’re going to do with the rest of this season…