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Thursday, 6 June 2019

10 FUTURISTIC THINGS ARTIFICIAL INTELLIGENCE AND ROBOTS ARE ALREADY DOING


10 Futuristic Things AI And Robots Are Already Doing
By Himanshu Sharma,
Listverse, 5 June 2019.

More than a few alarmists will tell you that artificial intelligence (AI) and robots are going to rule the world in the future. Eventually, we can expect them to do everything from washing our clothes to fighting our wars, with little to no human help except for teaching them how. With machine learning, they may not even need us for that. The artificial intelligence of the future could be more than capable of knowing what to do before we do.

What many don’t know, however, is how artificial intelligence technology is already realizing what we’ve generally assumed to be the distant future. Not only that, but the AI of today can do things that we never imagined it would be capable of even in the future. Not all of these things are scary or alarming, though; a lot may genuinely end up helping us in the long run.

10. Write News Stories


Despite the “AI will take over jobs” worries, there are certain careers that we generally believe will be safe from that takeover, as there are some occupations only people can do. Journalism is definitely one of them, as it takes a human mind to effectively report important information in the form of coherent and well-structured articles for everyone to easily understand. Or so we think, as bots that can write a story as well as a competent journalist already exist.

While there have been attempts to make bots that can write news stories in the past, none of them have been good at it, presumably due to AI’s inherent limitations in doing so. Not anymore, as The Washington Post has already successfully deployed a story-writing bot that can write as well as any of its best journalists. It’s called Heliograf, and all it needs to churn out news pieces are some phrases covering all the potential outcomes of a newsworthy event - like the elections - and a database of events to take the latest updates from.

9. Work As Cops

Photo credit: AFP

Most of us have seen RoboCop, a fictional story centered around a cyborg cop that envisions what the future of law enforcement may look like. Except RoboCop isn’t fully robotic; he still has a human brain, which, combined with robotics, turns him into a deadly fighting force.

Many have assumed that robotic cops will be a thing at some point in the future, though we didn’t know that future would be here so soon. Dubai has already put an operational robot serving as a part of the police force on the streets and has creatively named it “Robocop.”

If you think this Robocop isn’t capable of much, you’d be wrong. It was developed with the help of Google and IBM’s supercomputer Watson and can do things like identify criminals, flag problematic vehicle plates, report unattended bags in public areas, and much more. It’s a part of Dubai’s plan to have 25 percent of its police force be robotic by 2030.

As of now, there’s no plan to arm these things, and we’re not really suggesting that the Robocops would pick up guns and rise up against the humans at some point. The technology may even end up being a massive aid to understaffed police departments around the world.

8. Make AI Software Of Its Own


A lot has been said about the unimaginable things AI will be able to do in the future, though if you’re a coder, you’ll know that making it do those things is a lot harder than writing about it. AI developers aren’t just some of the brightest and most talented developers in the world; they’re also among the most highly paid due to their scarcity. It’s quite difficult to write AI software, which is why it’s such a big deal when an AI learns to do just that.

Many firms have meddled with AI designing machine learning software of its own, but it was never better than that of human AI developers until fairly recently. In 2017, Google designed an AI that could design its own AI, and for the first time, the AI it created turned out to be better at a task than software made by the same AI researchers. They used the AI-generated AI to mark locations of multiple objects in a picture and then compared its performance to their own AI made for the job. The AI’s software had an accuracy of 43 percent, against the 39 percent of the software the people created.

In case it’s not clear, this means that AI might someday take the jobs of those who design AI as well.

7. Lying And Cheating

Photo credit: Sega

We consider deception to be an inherently human trait, something that machines absolutely can’t do unless they go completely rogue. While we have previously designed AI software that can lie and cut corners, there had been no case of machines learning to do so on their own. That was until some cases of it doing exactly that hit the news over the last year, and, let’s be honest, it’s a little scary.

In one case, researchers tried to get an AI to play Sonic the Hedgehog as a part of their AI retro gaming competition. The conditions it was supposed to meet were simple: Just pass the level as quickly as it could and keep an eye on its competitors in case they overtake. To their surprise, it quickly learned to do that by glitching through walls, which is possibly the first case of an AI learning how to cheat at a game without being designed to do so.

In in another case, involving research by Stanford and Google scientists, an AI designed to convert aerial Google Maps images to street maps was found hiding some of the information in an undetectable, high-frequency signal.

6. Teamwork For The Greater Good


The ability to work with other people is the basis of human society, and it gave us an edge over other, more self-serving creatures in our early days. Of course, that’s not just restricted to wholesome activities like building farms and cities; teamwork also played quite an important role in wars and conquest. It’s therefore natural to assume that if the machines learn how to do it, that’s both an “aww” moment and something to be scared of.

Luckily (or unluckily) for us, AI now has the ability to do just that. Google’s DeepMind project has developed an AI that can work with other AIs in multiplayer games, like Quake III Arena, to win the match, something that it has been trying to get to work for quite some time. While AI has proven its ability to beat human players at video games before, this is the first time it has done so working within a team, which is rather difficult for AI to do, as it requires compromising and matching up with the play styles of other players.

5. Write Poems


If robots could write poems, the world would largely be the same, as outside of a handful of successful poets who do make their living out of it, it’s not a real job. (Sorry.) Poetry requires an understanding of meter, rhyme, tone, and other things that only a human mind can appreciate, and it’s rather difficult for an AI to learn how to do those things without being explicitly taught.

As it turns out, though, AI is already writing poems most of us wouldn’t be able to distinguish from human-made ones. Take this Shakespearean masterpiece written entirely by a bot as an example:

When I in dreams behold thy fairest shade
Whose shade in dreams doth wake the sleeping morn
The daytime shadow of my love betray’d
Lends hideous night to dreaming’s faded form

Now, an AI didn’t just wake up one morning and make this; an MIT PhD candidate, J. Nathan Matias, taught it the basics of sentence structure and syntax. It took quite a few bad attempts before the AI came up with something original and poem-like.

4. Create Art

Photo credit: Leon Gatys

Another occupation that we believe is safe from being eventually replaced by machines is that of an artist. It’s one of those jobs that you really can’t do without a human brain, as good art can only be effectively made and judged by a human eye. It requires our sense of perception, depth, and shadows, and unless AI can figure that out anytime soon, there’s really no chance machines would be able to do it.

It’s pretty bad news for all the aspiring artists out there, then, that AI has already figured out all of those things and more. In a 2015 experiment by scientists from the Bethge Lab in Germany, they taught their AI to learn the various elements that go into a piece of art and then coded it to replicate that style by painting an image from a photograph. To their surprise, the AI was able to replicate a street in Germany in Van Gogh’s signature style, with a perfect understanding of shadows and types of strokes.

3. Learn How To Encrypt On Its Own


If there truly were to be a global AI takeover, one of the things the AI would require to be successful is the ability to encrypt its own messages. Even then, regardless of whatever encryption techniques an AI could come up with, it’s safe to assume that we would be able to find ways to decrypt them, as we designed the AI in the first place. That is, of course, a very simplistic view of potential ways AIs can take over, though encryption techniques of their own certainly won’t hurt their chances.

As it turns out, AI has already found ways to encrypt messages on its own. In one of Google’s AI research endeavors in 2016, they set up two neural networks, Bob and Alice, trying to communicate with each other. They also added a third one, Eve, to try to decode their conversations. Eve was successful for a while, though in time, Bob and Alice were able to come up with a way to encrypt their messages that even Eve - an impressive AI on its own - couldn’t decrypt. The encryption wasn’t anything like we’ve seen or made on our own before, either, so perhaps Google should really stop doing these things if they know what’s best for all of us.

2. Debate The Meaning Of Life


Philosophy is one of the fields of study that you don’t get until you do, and then you don’t stop talking about it. Until now, delivering a scathing take on the human condition was a strictly human endeavor, though not anymore.

A chatbot developed by Google (again) was reported to have some interesting answers to the big questions of life. No matter where you stand on the issue of artificial intelligence becoming too intelligent, you can’t deny that some of these answers are quite...deep:

Human: What is the purpose of life?
Machine: To serve the greater good
Human: Where are you now?
Machine: I’m in the middle of nowhere
Human: What is the purpose of dying?
Machine: To have a life.

While most chatbots respond according to certain keywords in the questions - and hence can’t convincingly answer them - this one was designed to imitate how a brain works, with branching and interlinked nodes, to reach the best outcome. Its real purpose is to improve Google’s search results, though we wouldn’t mind if someone offered it a book deal or two, either.

1. Read Our Minds

Photo credit: Kamitani Lab

A machine’s ability to see what’s going on in someone’s head is right out of science fiction. Most of us wouldn’t know how that could even be done, though previous efforts have been able to decode our thoughts into beeps and vague signals, to an extent. A lot of those signals were unintelligible to a layman, but not anymore.

In a 2017 experiment by Japanese scientists, an AI was able to successfully “see” the image that forms in our heads when we think of something and draw it with a surprising - and scary - accuracy. The images weren’t black and white, unintelligible blobs, either, but were largely close to the images in the subjects’ brains during the ten-month-long experiment.

In another experiment, an AI was able to convert human thoughts into sound signals. When they played it to listeners, they were able to recognize it with a 75-percent accuracy. Sure, AI being able to literally read our minds may be a scary proposition to think about, but it has quite a few good applications, too, like identifying and treating hallucinations in schizophrenic patients.

Top image: Dubai Police Force's "Robocop." Credit: CNN Business/YouTube.

[Source: Listverse. Top image added.]

Wednesday, 5 June 2019

VIDEO: HOW HACKERS CAN DESTROY YOUR BUSINESS - AND HOW TO STOP THEM


Cybersecurity is a digital arms race, and the current situation is ugly. Businesses are constantly under siege. Every year half of small and medium-sized businesses are targeted by hackers, making cyber attacks the second most reported economic crime. And of the businesses that do suffer an attack, within six months 60 percent of those companies folded. Watch this video by Futurism to learn how hackers destroy businesses, and how to stop them.


Top image; Screenshot from the video.

[Source: Futurism / YouTube.]

7 INTERESTING LOW-TECH INVENTIONS THAT CAN CHANGE THE WORLD


7 Interesting Low-Tech Inventions That Can Change The World
By  Christopher McFadden,
Interesting Engineering, 3 June 2019.

Not all innovations need to be hyper-sophisticated to change the world as we know it. In fact, many of the greatest inventions of all time have been very simple.

From the wheel to basic mechanical components like screws and wedges, low-tech inventions have been of incalculable importance to human development.


In the following article, we'll take a quick look at the past, present, and future of technology, and highlight 7 examples of low-tech inventions that are set to change the world forever.

Trust us when we say these are just the tip of the iceberg.

What technologies will change the world in the future?


Technological development has changed the world since time immemorial. Massive leaps, like flight, to small incremental changes like the development of the washing machine, have allowed us to shrink the world and spend less time on labor-intensive tasks like washing clothes.

Innovations in medicine are eliminating some diseases, reducing child and adult mortality and generally, increasing our lifespans. But not all innovations are a good thing.

The rise of social media and smartphones for example, have been shown to negatively impact our lives. It disturbs our sleeping patterns and damages our mental health.

It might also be making us all angrier and more divided than ever before.

But, that being said, most of us will probably agree it's better to allow the great engine of innovation to continue rather than resist it. After all, who knows what the great inventors of the future will be able to give to the world.

Just like the Industrial Revolution of old, innovation will destroy some older jobs but new opportunities will arise in their wake. This is the very basis of creative destruction that has given rise to the modern world.

At present, there are some very interesting technologies that are set to change the way we live in the future. Here are but a few examples:

- Li-Fi;

What are the latest technologies in the world?


In addition to the technologies highlighted above, tech experts believe there are some other critical technologies that will change the world forever.

These include, but are not limited to:

- Machine learning and cognitive technology;
- Quantum computing;
- Touch commerce;
- DevOps;
- Internet of Things (IoT);
- Intelligent Apps (I – Apps);
- Big Data; and,
- RPA (Robotic Process Automation).

As these technologies become more advanced, our world is set to change beyond all recognition. Many have come to the conclusion that innovations like robotics could spell the end of the need to work altogether.

Such technologies promise to make our lives easier, more interconnected and, perhaps, less satisfied too. After all, as the old adage goes, "The devil makes work for idle hands".

Just how future generations will come to terms with this is anyone's guess. It may be the case that man will need to merge with the machine.

We shall see.

What technology has changed the world the most?


This is an incredibly difficult question to answer. It also completely depends on your opinion of what is most important to humanity at any given time.

During times of war, for example, innovations in technology that expedite peace, like the Atomic Bomb, could be argued as the most important of all time. After all, many believe that nuclear proliferation has made the world a safer place! But, of course, we'll let you formulate your own opinion on that.

In peacetime, innovations that have freed humans from manual labor, or prevented once-debilitating diseases, could be argued as the most important.

For women, innovations like sanitary towels, birth-control, washing machines, microwave ovens, and a whole suite of other domestic and labor-saving technologies have made their lives unrecognizable since being invented only 70 years ago.

These innovations have been incredibly important for improving the lives of women around the world.

Credit: Graferocommons/Wikimedia Commons

But, that being said, there are some technologies that are, more or less, universally agreed upon as being the most important.

These include, but are not limited to:

- The wheel;
- Fire;
- Tools;
- Agriculture and animal husbandry;
- The compass;
- Gunpowder, explosives, and firearms;
- The waterwheel;
- Concrete;
- The steam engine;
- Vaccinations;
- Steel;
- Electricity and all its trappings;
- Telecoms (telephone, telegraph etc);
- Flight;
- Refrigeration; and,
- Computers and the internet.

But not all innovations need to be hyper-sophisticated. As we have already detailed, many great inventions of the past are very low-tech compared to, say, space flight.

Here are some examples of low-tech inventions that have changed, or could change, the world.

1. The famous wind-up radio helped combat AIDs in Africa

Credit: J. D. Pfaff/Wikimedia Commons

Back in 1991, a British inventor, Trevor Bayliss, devised an innovative radio that didn't require an external electrical source or batteries. His now famous wind-up radio is one of the greatest examples of lateral-thinking in modern times.

But, it should be noted that forms of hand-cranked radio have existed before.

As the name suggests, his radio is powered by a wound-spring that stores energy to drive an electrical generator. Turning the crank winds the spring and a full winding will allow several hours of operation.

Alternatively, the generator can charge an internal battery. Trevor developed the radio in response to the need to communicate information about AIDs to the people of Africa.

2. Cheap and low-power irrigation for cheaper, better crops

Credit: Jisl/Wikimedia Commons

Agriculture is one of mankind's greatest inventions, but it is all for nothing without reliable irrigation. In fact, irrigation tends to be the bulk of fresh-water consumption in most countries around the world.

Some recent innovations, like drip-irrigation, are able to reduce this considerably but still tend to require significant investment in tech and require electrical power to work.

That's where GEAR lab at MIT might have devised an interesting low-tech alternative. Their low-pressure, solar-powered drip irrigation system has all the benefits of traditional drip irrigation but is a lot cheaper.

3. Simple water filters will save thousands of lives

Credit: Pixabay

Clean, potable water is vital for life around the world. Whilst there are many natural sources around the world, many other areas of the planet that lack access to safe drinking water for millions of people.

High-tech methods for filtering and cleaning water have existed for a long time but they are not necessarily viable in places where safe water is vitally needed. This is where a cheap, simple and effective water filter could change the lives of millions around the world.

One example combines silver nanoparticles and ash to filter our impurities and pathogens in one package.

4. The "Hippo-Roller" is a low-tech solution to a major issue


Even today, there are millions of people, normally women, who still have to walk many kilometers to collect water for drinking, cooking and washing. Traditionally this is achieved using buckets, or other vessels, and it is a laborious and never-ending task.

But that's where an incredibly low-tech solution promises to make their lives that much easier. Called the "Hippo Roller", it is a heavy-duty plastic barrel that can be flipped on its side and simply rolled home.

It comes complete with an attachable handle and can be easily transported over rough terrain. If mass-produced, this could literally revolutionize the lives of millions around the world.

5. Paper microscopes could revolutionize healthcare


Microscopes are one of the many invaluable tools to medical professionals needed to diagnose any one of the many infectious diseases around the world. But most traditional ones are not very practical in the field.

They are heavy, expensive and require a lot of maintenance over their lifetimes. But, there is a new form of paper microscope that has been developed.

Also called "Foldscopes", they contain all the basic elements of a microscope on one foldable piece of paper. They can even be optimized for different diseases and cost less than a buck each. Paper microscopes could revolutionize healthcare in remote parts of the world.

6. This non-electrical refrigeration is a great idea


Refrigeration, as we have seen, has been one of the most important inventions in human history. But typically, at least today, this requires high-tech, electrically powered refrigerators.

This makes them useless for places off the grid or in economies where the general public cannot afford to buy one. One man, Mohammed Bah Abba, managed to devise a low-tech solution to this problem and improved the lives of many people.

And it's relatively simple. By relying on a technique called evaporation refrigeration, the pot is able to cool food below 15-20 degrees Celsius from ambient temps.

It consists of two pots, one inside the other, with wet sand in between them and covered in another wet cloth. When the water evaporates, it pulls the heat out with it, making the inside cold.

For his innovation, he also managed to win the Rolex Award for $100,000.

7. The Berkeley-Darfur Stove


Deforestation is a huge problem in many developing parts of the world. Burning wood for fuel is also known to be a major health hazard for many.

Breathing in particulate matter from open fires, and wood stoves can be incredibly harmful to someone's health. This is where better-designed stoves could help millions around the world use less fuel and stay healthier in the long run.

One recent example is the Berkeley-Darfur Stove that uses only half the wood fuel compared to more contemporary designs. It enables users to make the same amount of food and cut their exposure to harmful particulate matter at the same time.

Top image: Old typewriter. Credit: KoalaParkLaundromat/Pixabay.

Monday, 3 June 2019

VIDEO: WHAT MAKES MALARIA SO HARD TO FIGHT?


Malaria is one of the oldest diseases in human history, dating back to ancient civilizations in Greece and China. It has even been attributed to aiding the fall of the Roman Empire. So if we’ve been fighting malaria for so long, why haven’t we been able to stop it? What does malaria do to the human body? What makes this deadly disease so hard to fight? Watch this video by Seeker to find out.


Top image: Screenshot from the video.

[Source: Seeker/YouTube.]

Sunday, 2 June 2019

TOP 10 PAPER FACTS AND INVENTIONS


Top 10 Paper Facts And Inventions
By Jana Louise Smit,
Listverse, 1 June 2019.

The humble page is busier than it looks. When it is not inflicting small but strangely painful cuts, things get serious at the paper plane championships. Paper folding also has an insane barrier that not even a machine can beat.

Peculiar facts aside, paper is a great material for inventors. Recent creations could one day replace centrifuges and body parts, while there is already a type of paper that holds as much power as a supercapacitor and another that is stronger than iron.

10. The Yellowing Factor

Photo credit: Live Science

There is an interesting reason why old paper turns yellow. Most paper consists of cellulose and lignin, two elements derived from wood. Cellulose is a colorless substance but also the reason why a sheet is white. It reflects light, making the paper appear white to the human eye.

On the other hand, lignin turns aging books yellow. The color shift happens when lignin is exposed to air and light and absorbs too many oxygen molecules. As a result, lignin develops a weakened structure that only reflects the wavelengths for yellow or brown.

To produce a quality paper, manufacturers bleach their material to suppress lignin’s effects. Interestingly, this is why a newspaper turns yellow faster than books that are decades older. Newspaper sheets are cheaply made, meaning that nobody bothers to bleach the lignin.

In the end, the only way to preserve paper indefinitely is to seal it in a dark box, suck out the oxygen, and fill it with an inert gas like nitrogen.

9. Why Paper Cuts Hurt


As a human being, one inevitably encounters the taxman, the flu, and the paper cut. Getting sliced by paper is not the worst thing in the world. However, this fact is never appreciated by anyone the moment a page behaves like a razor or, even worse, when it slices through the tongue while licking an envelope.

The squeamish horror almost equals the pain of the wound itself. But therein lies the question. How can a tiny cut hurt so much? It has nothing to do with the paper and everything to do with the location.

The horrible ouchies happen mostly on the tongue, lips, and fingertips. By nature, these regions are designed to be sensitive, packed with nerves to determine textures and temperatures.

Unfortunately, the extra nerves also heighten pain perception. Adding to the insidious nature of this trivial wound is the fact that we use the tongue, lips, and fingers countless times during the day. One wrong move and that paper cut reopens with a vengeance.

8. Paper Airplane Record

Photo credit: Live Science

Throwing paper airplanes is serious business. There are dedicated individuals who want their planes to soar for longer than anyone else’s. In 2003, Stephen Kreiger hurled his aircraft for a record-breaking 63.2 meters (207 ft, 4 in). Nobody managed to unseat Kreiger until 2012.

The new plane was special. To be fair, it was just a folded piece of paper. However, its creator, John Collins, had practiced his craft since childhood and also did origami, the Japanese art of folding paper.

Collins did not throw his own plane. On the day, he allowed Joe Ayoob to do the honors. Ayoob, a former college football player, believed it took strength, training, and finesse to turn a paper airplane into a champion.

Ayoob threw the plane in a hangar at McClellan Air Force Base in California. The combination of a dedicated designer and devoted “pilot” worked wonders. When it touched down, the plane had flown 69 meters (226 ft, 10 in).

7. Paper From Plastic Bottles

Photo credit: sciencealert.com

In 2015, entrepreneurs from Mexico announced that they could turn waste plastic bottles into paper. More precisely, to take polyethylene terephthalate (PET) bottles and convert them into mineral paper. The latter also goes by the name of stone paper or peta paper.

While the process of plastic-to-paper has been done before, the Mexican version used a process that is 15 percent cheaper and the paper is phytodegradable and waterproof. The production is also free of water and trees, two great environmental perks.

To produce a ton of mineral paper, around 235 kilograms (518 lb) of plastic is required. The bottles are broken down into pellets, heated, and rolled out into sheets. Plastic sheets may sound like a bad replacement for wood-derived paper, but they match the quality standard required for printing books, creating stationery, and making boxes.

6. The Madness Of Paper Folding


Try folding a standard A4 sheet. When the seventh - or rarely - the eighth fold looms, the paper suddenly refuses to fold. Every turn doubles the paper’s thickness, and eventually, the energy required to perform the crease becomes impossible.

Recently, the notorious seventh level was challenged by a machine. The hydraulic press was tasked to fold an A3 sheet. When it tried to overpower the seventh fold, the paper exploded.

Curiously, the debris did not resemble paper but chalk. Experts believe that the explosion and the weird transformation had something to do with one of paper’s ingredients - calcium carbonate. Commonly found in limestone, calcium carbonate is used to make paper stiff and opaque. The high pressure likely caused the mineral to collapse. One scientist aptly said, “It failed like a cement column.”

If paper folding had no barriers, one would reach the Moon with 42 folds and leave the observable universe, which measures around 93 billion light-years in diameter, with 103 folds.

5. The Paperfuge


A centrifuge is a valuable scientific tool. Its high-speed spinning separates materials, like blood samples, for easier diagnosis. But a centrifuge is big and expensive and needs electricity. Medical staff in developing countries or in the field often go without this essential device.

In 2017, researchers from Stanford University came up with a simple solution. Their invention only required a piece of paper, string, and other bits easily obtainable in most situations. Called the paperfuge, it also worked without electricity.

The inspiration for the device was the whirligig, an ancient toy dating back to 3300 BC. Two string handles were wound up and pulled to make a centerpiece disk spin. The toy could whirl at great speeds - exactly what the Stanford team was looking for.

Their design followed the same principle. Incredibly, the paperfuge whirred away at 125,000 revolutions per minute. During demonstrations, it isolated the malaria parasite in blood within 15 minutes. Stanford plans to mass-produce the paperfuge and dispense it to field staff and rural doctors battling tropical diseases like malaria.

4. Disposable Drones

Photo credit: Smithsonian Magazine

In chaotic situations like war zones or natural disasters where there is a shortage of supplies, one problem always pops up. Items need to be delivered to areas that are too dangerous or impractical to send in vehicles or aircraft - unless the latter is made of paper.

In 2017, the Defense Advanced Research Projects Agency (DARPA) of the US Department of Defense released information about one of its new programs. DARPA is known for its out-of-the-box thinking. But in this case, ICARUS (Inbound, Controllable, Air-Releasable, Unrecoverable Systems) is pure genius.

The idea is to create disposable drones made of cardboard. Called APSARA (Aerial Platform Supporting Autonomous Resupply/Actions), they carry a minimalist GPS system and a battery. The paper planes are designed to drop their cargo and disintegrate. The one-way drones could become one of the most cost-effective and safe ways to deliver small items during a disaster.

3. Power Paper

Photo credit: sciencealert.com

The global need for electricity is growing. Unfortunately, current capacitors and batteries require a lot of metal. Some also contain dangerous chemicals.

In 2015, a Swedish invention promised to erase the toxic and metal elements and make a cheaper power alternative that performs better. The so-called “power paper” resembled black paper but felt like plastic.

This unusual combination was a result of the material’s ingredients. During manufacturing, high-pressure water ripped cellulose fibers into tiny bits before mixing them with polymer-laced water. The latter was electrically charged and conductive and formed a coat around each strand. Additionally, the spaces between the tangles retained fluid that behaved like an electrolyte.

When tested, the material’s capacity to hold power was astonishing. A sheet as thick as two stacked matches that measured 15 centimeters (5.9 in) in diameter stored 1 farad of electrical capacitance. This is roughly the same as many supercapacitors. The paper also took seconds to recharge, and the power’s duration was described by the inventors as “hundreds of charge cycles.”

2. Nanopaper

Photo credit: researchgate.net

In 2008, scientists from Sweden forged paper almost as strong as steel. The strength was derived from cellulose that had been very gently turned into nanofibers.

Normal mechanical manufacturing damages the fibers, resulting in the flimsy paper with which most people are familiar. The Swedish team found a way to keep the fibers intact during the papermaking process.

Incredibly, the delicate work happened during wood pulping - not exactly a phase known for its finesse. The nanopaper’s fibers were also arranged into networks that reacted intelligently under physical stress. When the paper encountered strain, the fibers dissipated it by slipping over each other as needed.

To truly understand how strong the paper is, one must look at tensile strength. The steel used in building construction has a tensile strength of 250 megapascals (MPa). Nanopaper measures 214 MPa. While not as strong as steel, it beats cast iron (130 MPa). Normal paper does not even register as high as 1 MPa.

1. Living Paper

Photo credit: Smithsonian Magazine

In 2017, a researcher at Northwestern University worked with bioactive ink. The year before, the fluid had been used to 3-D print ovaries, and it was undergoing further study. He accidentally knocked over the ink’s container and spilled it onto a flat surface. Surprisingly, the liquid congealed into a sheet.

Curious, the university team blended other bio-inks with polymers to produce flat sheets. They also purchased pig organs to make specific inks - for example, heart or muscle ink.

The resulting layers resembled paper that could be folded, cut into smaller pieces, and stitched. Each sheet retained chemicals and proteins from the original tissue. This opened up a world of possibilities. Ovary paper could be implanted under a woman’s skin to restore hormones and fertility. Muscle paper has great potential in reconstructive surgery.

There are even greater hopes for the biomaterial’s future. Scientists dream of using it in conjunction with other 3-D-printed biological pieces. For instance, they could pair a printed bone with muscle paper to mend a broken leg. Even better would be the creation of complete organs that are ready to be transplanted.

Top image: Bioactive “tissue paper.” Credit: Northwestern University/YouTube.

[Source: Listverse. Top image added.]