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Doubled Battery Life...



SiC-free graphene growth on Si NPs. (a) A low-magnification TEM image of Gr–Si NP. (b) A higher-magnification TEM image for the same Gr–Si NP from the white box in a. (Insets) The line profiles from the two red boxes indicate that the interlayer spacing between graphene layers is ~3.4 Å, in good agreement with that of typical graphene layers based on van der Waals interaction. (c) A high-magnification TEM image visualizing the origins (red arrows) from which individual graphene layers grow. (d) A schematic illustration showing the sliding process of the graphene coating layers that can buffer the volume expansion of Si. Credit: Nature Communications 6, Article number: 7393 doi:10.1038/ncomms8393

Topics: Batteries, Green Tech, Semiconductors, Materials Science, STEM


Currently, my laptop battery lasts about two hours straight out of the box. Over time and wear, that diminishes to having to use the power cord until a new one comes in; my Kindle and mobile phone has about six and eight hours charge respectively. I listed green tech. Longer battery life should translate to less finding their way to landfills.

(Phys.org)—A team of researches affiliated with Samsung's Advanced Institute of Technology, along with colleagues from other institutions in Korea has found a way to greatly extend lithium-ion battery life. In their paper published in the journal Nature Communications, the team describes their new technique and the results they achieved using it.

Consumers want their phone batteries to last longer—that is no secret, and battery life has been extended, but mostly due to improved efficiency of the electronics that depend on it. Researchers at phone companies and elsewhere have been working hard to find a way to get more power out of the same size battery but have to date, not made much progress. In this new effort, the researchers looked to silicon and graphene for a better battery.

Phys.org: Samsung develops lithium-ion battery with nearly double the life, Bob Yirka

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Albinism and fiction

Okay; this is a rant, and will probably be my only, or one of very few blogs. That's because I have other venues for writing.

Anyway: Here is something that has caused me consternation for a very long time. Albinos in the media have always been seen as other than human. We have been given red demonic eyes, stark white unruly hair and skin that resembles a corpse or a powdered doughnut.

In fact, we have been portrayed as vampires, aliens, an even underground cannibal brainless brutes. Although I do know some brainless brutes with albinism, this is by no means the norm for people like me.

Believe me; if I had the power to make my eyes glow and make people step out in front of trucks, I certainly would. But I can't do that so breathe easy.

If you have ever seen Village of the Damned, The Time Machine, The Omega Man, or read a Marvel comic you know what I mean. If you've seen End of Days (I know that guy) read The Famished Road or Sent For You Yesterday, you are all too familiar with the albino as some otherworldly freak. I'm not even going to talk about Powder. ugh.

There are people who actually think we are witches or magic.Sometimes this is rather funny. I met a man who thought I was a witch and offered to save my soul. But sometimes it can be downright dangerous. People in parts of Africa have been hacking up albino children collecting their body parts for sale. They have had to put children in safe camps for their protection.

But I digress.

There was a man who contacted me about an albino character he wanted to create for a game. I suggested he give the character long blond dreads. That was a long time ago and I haven't heard anything.

So what would happen if there were a character in a comic book that was just a person with albinism? No superhuman powers, not out to conquer the universe. It would be just like putting an evil dwarf in your story who wasn't evil. 

It's all about using disability and difference, as a metaphor for "the other".

I'm not going to offer any answers here since I don't have any myself. How do you portray a person with albinism in the comics? Why would you put them in the story? How would you draw them? I'll let you figure that out. I just thought I'd give you some food for thought.

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A new social network that uses a points-based system to encourage people to interact with content is closing in on 1 million registered users since it launched earlier this month, according to the company's CEO.

"We've been around for a week. We are already serving significant impressions," said Bill Ottman, the founder and CEO of Minds, in an interview last week. "We're not saying we're an ad network on the scale of Facebook or Google or television: It's the potential of what it might become."

Minds has existed as a blogging platform since 2012, reaching 30,000 users in its private alpha mode. But on June 19, the developers behind it launched a new social network and associated mobile applications for Apple and Android devices. And according to Ottman, it's already wildly popular, with almost 1 million accounts.

Click here for the full story

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Killing Schrödinger's Cat...



Topics: Einstein, Gravity, General Relativity, Modern Physics, Quantum Mechanics, Schrödinger's Cat


If the cat in Erwin Schrödinger's famous thought-experiment behaved according to quantum theory, it would be able to exist in multiple states at once: both dead and alive. Physicists' common explanation for why we don’t see such quantum superpositions—in cats or any other aspect of the everyday world—is interference from the environment. As soon as a quantum object interacts with a stray particle or a passing field, it picks just one state, collapsing into our classical, everyday view.

But even if physicists could completely isolate a large object in a quantum superposition, according to researchers at the University of Vienna, it would still collapse into one state—on Earth's surface, at least. “Somewhere in interstellar space it could be that the cat has a chance to preserve quantum coherence, but on Earth, or near any planet, there's little hope of that,” says Igor Pikovski. The reason, he asserts, is gravity.

Cinema-goers who saw the film Interstellar are already familiar with the basic principle behind the Vienna team’s work. Einstein’s theory of general relativity states that an extremely massive object causes clocks near it to run more slowly because its strong gravitational field stretches the fabric of space-time (which is why a character in the film aged only an hour near a black hole, while seven years passed on Earth). On a subtler scale, a molecule placed nearer the Earth’s surface experiences a slightly slower clock than one placed slightly further away.

Because of gravity’s effect on space-time, Pikovski’s team realised that variance in a molecule’s position will also influence its internal energy—the vibrations of particles within the molecule, which evolve over time. If a molecule were put in a quantum superposition of two places, the correlation between position and internal energy would soon cause the duality to 'decohere' to the molecule taking just one path, they suggest. “In most situations decoherence is due to something external; here it’s as though the internal jiggling is interacting with the motion of the molecule itself,” adds Pikovski.

Scientific American: Gravity Kills Schrödinger's Cat, Elizabeth Gibney and Nature magazine

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Hype Material...

Fig 1. Graphene and its descendants: top left: graphene; top right: graphite = stacked graphene; bottom left: nanotube=rolled graphene; bottom right: fullerene=wrapped graphene (adapted from ref.[1]).2
National University of Singapore


Topics: Graphene, Materials Science, Nanotechnology, Semiconductor Technology, STEM


Though the article tends to reset expectations, I think there is still a lot of good research to do with graphene in the foreseeable future. The statement of being "decades" out shouldn't discourage anyone. There's room for a few more scientists; a few more Nobel's that are either currently in grad school, in kindergarten or might not have even been born yet. We just have to have the foresight to build the education infrastructure to develop the young people that will do it in this country or elsewhere (likely Singapore). Somewhat irritatingly, the microwave and the Internet have given us a sense of instantaneous expectations in research and especially politics. May we never get to the point where we can walk up to a 3-D printer (the Heisenberg Uncertainty Principle pretty much kills all hope of a replicator) and say: Tea, Earl Grey: Hot. Instead of the Star Trek post-apocalyptic utopia, we may be insufferable to the point of obsessive compulsive, if - like our conundrums with our mobile devices and microwaves - such a device quits working...

The wonder material. It’s just one atom thick but 200 times stronger than steel; extremely conductive but see-through and flexible. Graphene has shot to fame since its discovery in 2004 by UK-based researchers Andre Geim and Konstantin Novoselov, for which the University of Manchester pair were awarded the 2010 Nobel prize in physics.

We’ve heard the facts. We’ve read about how graphene could push the boundaries of today’s technology in almost unlimited ways. We’ve even pictured an elephant balanced on a pencil. But looking past the headlines, it’s clear that a lot of the most exciting areas of graphene science are still in the early stages. It will be years, decades perhaps, before we see the first graphene-enhanced smartphones, aeroplanes or bulletproof vests. But beyond these pie-in-the-sky promises, the underlying research is gathering pace.

Scientific American: Graphene: Looking beyond the Hype, Emma Stoye and ChemistryWorld

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To Explain the World...




Topics: Nobel Laureate, Nobel Prize, NSBP, Steven Weinberg, Theoretical Physics, World Science Festival


The above is not the cover of "To Explain the World: The Discovery of Modern Science." I downloaded that to my Kindle. This is just an autographed copy of one of his earlier famous books I'm proud to own. I'm equally proud to have met him.

As I've said, I met Dr. Weinberg at an NSBP conference in Austin, Texas in 2011. I meant to attend the World Science Festival in New York and hear this lecture personally. I alas, had a mandatory training related to work (it was good, though I went kicking and because it was good, not quite screaming towards the end of it). So accept my own consolation prize with the embed below. Consolation prize #2: I joined the World Science Festival as my "Father's Day" present to myself. I'll hopefully attend - barring anything else put on my schedule - next year.

Amazon.com:
To Explain the World: The Discovery of Modern Science, Dr. Steven Weinberg

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Gooeyness and Robots...

To restore their ability to survive in the ocean, the amputated jellyfish larvae simply rearranged their remaining arms instead of growing new ones.

Courtesy of Michael Abrams/Ty Basinger


Topics: Biology, Humor, Jellyfish, Robotics, Self-Healing


Am I the only one who thinks this reminds me of the shape-shifting T-1000 in the old Terminator II: Judgment Day?

For many sea creatures, regrowing a lost limb is routine. But when a young jellyfish loses a tentacle or two to the jaws of a sea turtle, for example, it rearranges its remaining limbs to ensure it can still eat and swim properly, according to a new study published June 15 in Proceedings of the National Academy of Sciences. The discovery should excite marine enthusiasts and roboteers alike, the authors say, because the jellyfish’s strategy for self-repair may teach investigators how to build robots that can heal themselves. “It’s another example of nature having solved a problem that we engineers have been trying to figure out for a long time,” says John Dabiri, a biophysicist at Stanford University who had discussed the project with the study investigators but was not involved with the research.

Scientific American:
Jellyfish "Gooeyness" Could Be a Model for Self-Healing Robots, Sabrina Imbler

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The Ca$h Ninja Grant

Title: The Ca$h Ninja Grant

By: Grant Chambers

Image Credit: KDA

 

To: Descendants of Counter-Inversion Veterans

 

It is neither our intent, nor desire to cause controversy. However, history provides little insight into the early life of the war hero, Antoine Clark, aka ‘Tha Ca$h Ninja.’ Contemporaneous records re-inflated from submerged computronium memory cores indicate that he was, at best, a middling third age hip-hop troubadour. Like other members of the genera superset, Tha Ca$h Ninja existed in a fragmented entertainment space deeply riven by notions of sub-genera purity and domain exclusivity. Pre-Inversion Artists frequently eschewed popular appeal, and Tha Ca$h Ninja was no different. For most members of various crews, clans and assorted musical combines, the widespread acclaim reached by classical artists (e.g. B.I.G., The Notorious) was considered a betrayal of artistic integrity. Musical balkinization resulted in flourishing, if not necessarily lucrative, hyper-local music scenes.

History should not judge the Tha Ca$h Ninja harshly for his lack of commercial success, both for his later contributions to the Second Refactoring of the Western Convergence, and the fact that artists who did achieve some measure of cross-genre appeal usually did so through a combination of exploitative cultural appropriation and deployment of unregulated memetic-catalyzed Langfordian Syrens. Given the gross storage and algorithmic processing requirements necessary to deploy such vectors, Tha Ca$h Ninja, despite assurances regarding his personal net worth, would not have been financially able to support such domain violations.  

Instead, Tha Ca$h Ninja’s core support grew out of a loyal fanbase cultivated from the dense urban conglomerations doting Bayou Country.  He innovated a fork of ‘southern’ hip-hop that incorporated  الدحية  and full VR simulacrum of mundane events and various prior sexual conquests engaging in Dabke-style erotic dancing. To wit, his seminal hit “Ca$h Ninja is günna’ Ninja that A$$!” featured amelodic, and at times rambling, exposition on the nature of ontological empiricism paired with bass loops and FVR recordings of interactions with surgical and germ-line modified gender-fluid individuals and constructs.

As our hypothesis (attached) posits, etho-phrenol recognition shows that many of the exotic dancers were likely Greco-Syrians recruited from the large populations settled in and around Mobile after the Burning Sands War.  If conclusively proved, it lends an explanation as to why the later incarnations of the Tha Ca$h Ninja Mercenary organization contained analogous command structures with various Levent-originated ‘Free’ forces.   

By Tha Ca$h Ninja’s own statements, he was an avid and enthusiastic student of both Bushido and Wing-chun. While other historians take these statements as boastfulness in keeping with the hyper-masculinity of the genera, we aim to prove these claims. What is not in dispute is that Tha Ca$h Ninja did exhibit considerable proficiency in light energy weapons during the Reclamation of Texarkana from Class 2 autonomous, non-metabolizing carnivorous forms.

During the later stages of the Inversion, when the Silicon Lords retreated to western Rockies, Tha Ca$h Ninja Mercenary was one of the first outfits commissioned by the Distributed Republic to halt the advance of Semi-sentients across the Mississippi. Though apocryphal, it is said that Tha Ca$h Ninja, accompanied by his most loyal retainers "These Amazonian Bitches!", could be seen battling amphibious-mechs on the river bank, his white mink coat trailing behind him and his crisp athletic shoes caked with red mud.

We hereby submit this grant to the Descendants of Inversion Veterans and ask permission to excavate the sites indicated, and recompile any imprinted data structures such that a complete understanding of the Second Battle of Vicksburg can be had.

For more short fiction Friday please visit http://moorsgatemedia.blogspot.com/

 

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Entropy and Meaning...

Source: Facebook meme


Topics: Civil Rights, Human Rights, Philosophy, Thermodynamics


"Man - a being in search of meaning." Plato

Zeroth Law of Thermodynamics - The "zeroth law" states that if two systems are at the same time in thermal equilibrium with a third system, they are in thermal equilibrium with each other. [1]

First Law of Thermodynamics - Is the application of the conservation of energy principle to heat and thermodynamic processes: The change in internal energy of a system is equal to the heat added to the system minus the work done by the system. [1]

Second Law of Thermodynamics - In any cyclic process the entropy will either increase or remain the same. Since entropy gives information about the evolution of an isolated system with time, it is said to give us the direction of "time's arrow" . If snapshots of a system at two different times shows one state which is more disordered, then it could be implied that this state came later in time. For an isolated system, the natural course of events takes the system to a more disordered (higher entropy) state. [1]

Third Law of Thermodynamics - Is essentially a statement about the ability to create an absolute temperature scale, for which absolute zero is the point at which the internal energy of a solid is precisely 0.

Various sources show the following three potential formulations of the third law of thermodynamics:

1. It is impossible to reduce any system to absolute zero in a finite series of operations.

2. The entropy of a perfect crystal of an element in its most stable form tends to zero as the temperature approaches absolute zero.

3. As temperature approaches absolute zero, the entropy of a system approaches a constant. [2]

Sources:
1. http://hyperphysics.phy-astr.gsu.edu/hbase/heacon.html#heacon
2. http://physics.about.com/od/thermodynamics/a/lawthermo_5.htm


There are admittedly other parts of the 2nd Law I don't focus on purposely: heat transfer and refrigerators. It will become apparent [hopefully] in a moment.



Thermodynamics is the science of "energy and its transformations," usually applied to systems. As I've alluded to in previous posts, the system in question is modern civilization itself. It's just an observation, not a doomsday prophecy. I see common cause-kissing cousins in Al Qaeda, ISIL/ISIS and Dylann Roof, hence the meme from Facebook above.



We tend to fight Entropy in various ways personally: diet, exercise, vitamins. It doesn't keep us from dying, but theoretically it preserves us; prolongs our stay on the planet.



A society can fight Entropy through education, as in the case of what should be called forevermore the Roof massacre, the less-educated tend to be more prejudiced and have less of a nuanced view of the world. It's typically "us versus them," as he stated an hour after his clandestine attendance at a bible study and his rampage began. Would he have been so angry, would he have sought the web sites of racist lunatics had he finished high school? Perhaps learned a trade or finished at least a college degree? His focus on debunked mythologies about African Americans purposely causing - in his twisted logic - genetic annihilation through miscegenation could have been alleviated by education. That would have resulted in stable finances, self-esteem that usually leads to better wardrobe selection, cologne, charm and if fortunate: coitus. He could have relieved his problems; his libido and nine innocent souls would still be with us.



The violence we're seeing in the news is tribal and primitive, born of ignorance and a sense of entitlement that is pathological. Isla Vista in Santa Barbara last year; a torrent of violence on black bodies since Trayvon Martin - shot, choked and beaten; churches set aflame appear to have made a "comeback" - to now a pastor and state senator and his members gunned down in their own house of worship. As these primitive instincts express themselves so violently, we as a nation are approaching Entropy as regressive types struggle in an ever-changing world that frightens them and their perceived loss of meaning, purpose and "specialness" in it. Unfortunately, "times arrow" has no reset button, and nation states not careful nor renewing itself with education of its citizenry, can drift inexorably from order...to chaos. It is at this juncture of our current history, ignorance - in the spirit of Thomas Gray's "Ode on a Distant Prospect of Eton College" - is NOT nor ever has been: bliss.
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So I Did a Writing Prompt ...

So I did a writing prompt on i09.com today.  It's really kind of strange, since I don't usually do these exercises, as I am rarely without inspiration.  But this time, it hit me, and I had to start writing.  The prompt was just a simple picture:  

And the words just came out.  Below is what I wrote.  Let me know what you think!  Happy reading!  

The Wordless Call

by Brandon Hill

        Tescadji had given him the phylactery in confidence.  

        Orisar, however, had been too much of an aficionado of history to let this merely sit in the protected coffers of Nibra’s museum of history.  Alone in the cloister of his artifacts and curios, he felt the still-intact magic of the storerooms’ myriad devices of elf, dwarf, and dragon origin.  But this device ... this was human-made!  How could it even be?  He pondered this as he took measurements and gauged its magical output before sealing it away.  Tescadji had told him that it was perhaps a hundred thousand years old.  But which kingdom of that age had birthed this curiosity was a mystery that thus far evaded him.  

        But still, how had humans made this?  Humans were a race of low etheric affinity on the Ylrebmik scale; Orisar and his race could only use extant magic in an object.  Humans were supposed to be incapable of casting spells of their own.  

        The thought haunted him ... possessed his thoughts for a solid week as he worked distractedly in his cluttered office.  The magic of the artifacts in their neatly arranged drawers always thrummed in the back of his consciousness like so many faraway bees’ nests, but this was different.  It seemed to somehow call to him.  Though there were no words that he could discern in that distant tugging at his soul, he nevertheless felt it.  And day after day, it seemed to grow louder, more distracting ... more irresistible.  

        On the seventh day, he broke.  

        He hovered over the device, its depiction of a withered human hand clutching the phial of glowing bluish green fluid in the enchanted, unbreakable glass.  It gave off a dim, sinister light that pulsed in his Orisar’s soul like a heartbeat.  Licking his dry lips, he turned the device over in his hands, studying every etching.  A series of glyphs that he could not comprehend lined the sealed rim of the phial.  It was some dialect of dwarvish, similar to Republic common in many ways, but different enough to where the words made no sense in root or pronunciation.  Normally, they would activate on contact, but these were silent, perhaps even dead.  But no, something was active.  The glow of the fluid in the glass exuded powerful magic, and the seductive wordless voice hinted at mysteries unfathomable.   There had to be a way to activate it.

        Suddenly, a revelation hit him. He recognized a stark similarity on the phylactery to something he’d seen on Tescadji.  On his infrequent visits, the man almost always wore elegant leather gloves.  Only once, he had removed them to assist him in gauging the magic in an elvish device of dubious origin.  And there, he could see the myriad of tattoos he kept hidden.  They were runes of a sort, almost dwarvish, but not quite.  And here on the phylactery, were two runes of the very same kind that adorned the back of mysterious man’s left and right hands!  

        Orisar rushed to a nearby cabinet to remove a stylus and ink jar.  Normally, he used this to copy inscriptions or pictures on very old parchments.  But today, his skin was the canvas.  With slightly trembling hands, he etched perfect copies of the glyphs that matched those on the phylactery and Tescadji’s hands onto the backs of his own.  Once finished, he allowed the ink a moment to dry.  If there was indeed magic there, then he did not want to risk the power evaporating the still-drying medium.  Spells broken in the midst of activation had been known to kill, after all.  Finally, with skilled motions, he swept his fingers along the matching glyphs on the ancient device.  

        In less than an instant, as the memories and consciousness came to life and fired with shattering force through him, Orisar knew he’d made a terrible, deadly mistake.  His ambition and blind recklessness had awoken a living curse: a blight that had lain vanquished for countless ages, the magic that it created forbidden and forgotten.  And it was awakening in him, consuming his soul and ceding it to its own force.  

        He screamed, but in vain.  These rooms were sealed.  And no one would ever hear his last agonized cries as Orisar the librarian was erased from this universe, becoming the vessel of something else.  



***

        Tescadji knew what happened the moment he arrived at what was left of the library.  The reaction of magic coursed through his deftly hidden runes with a cold warning of the darkest evil.  There were, oddly enough, no bodies at the scene.  And though this would not have normally concerned him, the Android Task force had been called in, due to eyewitness accounts describing a horrifying sight of the bodies that would have remained, human, elf, and android, rising, and with shambling movements, following a figure into the unbreathable smoky ruin: a figure that looked vaguely like human skeletal remains with a glowing green device hanging from its neck, but wearing the robes of a doctor Orisar of Nibra.

        Even Tescadji, after nearly eighty years, did not understand the reactions of his runes.  But they had given him this premonition.  He knew that he had somehow wrought this.  

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Two women stand looking at a newly finished burial palace. One of the women is Cleopatra VII. It is to be her tomb for when she needs it many years in the future. 

It won’t be all that long. 

The woman next to her is her good friend Tomyris of Massagetae. She helped design the burial palace. Together they created a tomb of magnificence, simplicity and…mystery. There is more here than meets the eye. 

Three days after the death of her lover Marcus Antonius, Cleopatra is cruelly murdered by a trusted servant. With great ceremony they are laid to rest. They are never to be disturbed in their slumber until the burial palace itself crumbles to the dust from whence it came.

Fernando de Bolivar, as arrogant as he is wealthy, is an archeologist and explorer with a nose for new discoveries of ancient sites. His record of successes is long. There is one place though that has continually eluded him. Cleopatra’s tomb. His lifelong vow is to find it and take what he can. In other words, steal as much as he can get away with.

Standing in his way is beautiful Dr. Tomyris Currington who has vowed to protect the secret of the tomb for as long as she can.

Will she fail in all of her attempts to dissuade Fernando de Bolivar from continuing his search? Will she fall for his charms? His money? Or will he, and she, encounter something else entirely?

Continuing one of the most unusual series of books I've had the honor of working on, book three in the Scepter of the Nile series has a face. Introducing ... The Tomb, by Ross Homer.

I say it's unusual because the central character's life spans a longer-than-ordinary timeline. This means the primary cover art and look for the MC can, and does, vary a good deal from one book to the next. 


In book one, Scepter of the Nile, the setting and era were Ancient Egypt. In book two, The Ankh, the scene was present-day. And for book three, The Tomb, we return to Ancient Egypt, with a memory that takes place before the first book's scene. Ross knows how to keep things interesting, huh?

Of course, for any familiar with this series, it's easy to see a reoccurring theme ... the MC likes translucent clothing, lol. Or shall I blame Ross for that?  ;P

Be sure to check out the entire series and catch-up with Ross Homer online:

                                     http://theworldsofross.com                               Twitter



Onto wrapping up the next book :-D

Until next time ...


This post edited by Grammarly* ~ NOW FREE FOR CHROME USERS!


*Blurbs and quotes provided are not edited by WillowRaven but posted as provided by author/publisher. 


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Optical Tweezers and Nanojets...

Artistic rendering of a lithography by photonic nanojets from an optically trapped microsphere. Courtesy: A A R Neves


Topics: Biology, MEMS, Nanotechnology, Optical Tweezers


Traditional optical tweezers, which have been around for decades, are one of the most important modern-day tools in biology, physics and chemistry. They work by trapping micron-scale objects near the focus of a laser beam. The technique allows objects to be picked up and moved to another place using just light.

Being able to control the position of individual molecules in this way is critical in medical research, for example, when manipulating viruses or large proteins. And being able to accurately place tiny objects, such as carbon nanotubes or nanowires, for instance, in a given structure or array will be important for fabricating nanomachines such as molecular motors and other devices in the future.

Nanojets are relatively new structures and are typically formed under the “shadow” of an illuminated dielectric cylinder or microsphere. The microsphere acts as a focusing lens and the nanojets form thanks to the constructive interference between the incoming and scattered light fields.

The nanojets created by Antonio Alvaro Ranha Neves of the Centro de Ciências Naturais e Humanas at the UFABC are a little more complex since they rely on highly focused incident light beams (in contrast to the plane waves generally used to form such jets). Neves used two collinear and co-propagating beams to create his nanojets and positioned one trap in a particular direction with respect to the other. It is the precise positioning of these two beams in this way that allows the nanojets to be switched on and off at will, he explains When they are switched on, they exert a trapping force on the microsphere, holding it approximately midway between the focuses of both beams.

Nanotechweb: Optical tweezers produce “nanojets”, Belle Dumé

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80 Percent Improvement...

The MIT researchers' prototype for a chip measuring 3 millimeters by 3 millimeters. The magnified detail shows the chip's main control circuitry, including the startup electronics; the controller that determines whether to charge the battery, power a device, or both; and the array of switches that control current flow to an external inductor coil. This active area measures just 2.2 millimeters by 1.1 millimeters.


Topics: Computer Science, Electrical Engineering, Internet of Things, Semiconductor Technology


The latest buzz in the information technology industry regards "the Internet of things"—the idea that vehicles, appliances, civil-engineering structures, manufacturing equipment, and even livestock would have their own embedded sensors that report information directly to networked servers, aiding with maintenance and the coordination of tasks.

Realizing that vision, however, will require extremely low-power sensors that can run for months without battery changes—or, even better, that can extract energy from the environment to recharge.

Last week, at the Symposia on VLSI Technology and Circuits, MIT researchers presented a new power converter chip that can harvest more than 80 percent of the energy trickling into it, even at the extremely low power levels characteristic of tiny solar cells. Previous experimental ultralow-power converters had efficiencies of only 40 or 50 percent.

Moreover, the researchers' chip achieves those efficiency improvements while assuming additional responsibilities. Where its predecessors could use a solar cell to either charge a battery or directly power a device, this new chip can do both, and it can power the device directly from the battery.

Phys.org:
Ultralow-power circuit improves efficiency of energy harvesting to more than 80 percentLarry Hardesty

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Charleston...



Topics: #BlackLivesMatter, Civil Rights, Charleston, History, Human Rights


I was in Charleston, South Carolina for my oldest son's graduation from Army Basic Training. My wife and I took a horse and buggy tour of Charleston, past the historic Mother Emanuel African Methodist Episcopal Church, its history and high steeple. The memories of being burned down and the parishioners worshiping in secret; Dr. Martin Luther King and Corretta Scott King leading from its steps marches to facilitate the world we currently have - not perfect, but better supposedly than the one we had.

Dylann Storm Roof ended that blithe innocence with the blood of nine innocent members spilled on the floor during...bible study.

The coward did not pick a certified street gang - Bloods, Crips, Gangster Disciples, Latin Kings - and go out in a martyred blase of glory. Surely, he would have started the "race war" in his manifesto; surely he would have spurred others to his cause. They would make room on Mount Rushmore for his gaunt young face. He would be immortal...and dead.

More than one article appears on the subject with its own official hash tag: #TakeItDown. Standard bearers of the GOP like Mitt Romney and state representatives are now calling for its removal from the South Carolina capital, something along with an African American president, I thought I'd never see. Rev. Clementa Pinckney - the pastor and state senator of Mother Emanuel now lies in state...beneath that flag. Mr. Roof was enamored with that, along with the ensigns of Apartheid South Africa and equally repugnant Rhodesia.

The confederate flag has been first above the capital of South Carolina since 1961; made law in 1962, so as long as I've been on the planet. 1961 was the 100th anniversary of the Civil War's beginnings. It's first appearance was in 1954, which Lee Atwater succinctly described in the "Southern Strategy." This has been done with a wink-and-a-nod; covered with platitudes like "tradition"; "heritage"; "way of life"; "Christian values" ignoring the domestic terrorism and outright encouragement of genocide by fire, explosions, gunshot and lynchings...now gunfire in a church. Yet another moment of eulogy over shootings like Newtown that should not happen...that not just children's lives matter, but #BlackLivesMatter. They matter in Chicago and Newtown; they matter in country municipalities and cities...they matter in churches that traditionally, have bible study on Wednesday nights, and I assume synagogues and mosques have similar times of cultural unity either weekly or annually - Ramadan and Yom Kippur comes to mind.

Dylann published a manifesto on the Internet. He gunned down nine innocent American souls. Falsely, it was spread through social media early on Roof was treated to a Burger King meal after his arrest; Freddie Gray in Maryland [definitely] a broken back. Freddie (18) was made by the media to look like a "thug"; Dylann (21), predictably as a confused "kid."

I'll likely tune into or DVR what the president has to say yet again. He looks like he's getting tired of it; I'M getting tired of it. He is one year and four days older than I, yet the gray hair and cracked skin makes him look ninety. As a country, we're an international embarrassment and likely, our lower mortality with respect to the rest of the industrialized world is a self-inflicted wound made by constantly playing...Russian roulette. I am particularly tired of talking about this, yet again. Our "normal" is national psychosis; E pluribus unum to warring tribes.
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Dilation and Superposition...

Illustration of a molecule in the presence of gravitational time dilation. The molecule is in a quantum superposition of being in several places at the same time, but time dilation destroys this quantum phenomenon. (Courtesy: Igor Pikovski, Harvard-Smithsonian Center for Astrophysics)


Topics: Modern Physics, Quantum Mechanics, Schrödinger Wave Equation, Superposition


Why do we not see everyday objects in quantum superpositions? The answer to that long-standing question may partly lie with gravity. So says a group of physicists in Austria, which has shown theoretically that a feature of Einstein's general relativity, known as time dilation, can render quantum states classical. The researchers say that even the Earth's puny gravitational field may be strong enough for the effect to be measurable in a laboratory within a few years.

Our daily experience suggests that there exists a fundamental boundary between the quantum and classical worlds. One way that physicists explain the transition between the two, is to say that quantum superposition states simply break down when a system exceeds a certain size or level of complexity – its wavefunction is said to "collapse" and the system becomes "decoherent."

An alternative explanation, in which quantum mechanics holds sway at all scales, posits that interactions with the environment bring different elements of an object's wavefunction out of phase, such that they no longer interfere with one another. Larger objects are subject to this decoherence more quickly than smaller ones because they have more constituent particles and, therefore, more complex wavefunctions.

Physics World: Does time dilation destroy quantum superposition?
Edwin Cartlidge, science writer in Rome

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I have created a Sci-Fi Cartoon series called Chase Vapor. It is about a young black girl who has to go on a quest into deep space to retrieve the Earth's water supply after a hostile group of aliens steals it. The project is currently in the hands of Amazon Studios. The way they operate is: They put the pitches they receive on their website for the public to rate out of 5 stars. This helps them determine which shows to make. Chase Vapor is currently #1 in the Childrenand Tween category, and #6 over all. What the CEO of Amazon studios has said is he doesn't just want the shows with the most likes, he wants to see that there is a passionate fanbase out there for the show. So if everyone could to go to https://studios.amazon.com/projects/79693 take a look at our show, rate it and leave positive comments, it would help a lot in getting the show made.

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