Invisibility cloak has hidden Harry Potter and hobbits from view and now, this sci-fi staple may be moving closer to reality!
Scientists at Queen Mary University of London (QMUL) have made an object disappear by using a composite material with nano-size particles that can enhance specific properties on the object’s surface.
Researchers demonstrated for the first time a practical cloaking device that allows curved surfaces to appear flat to electromagnetic waves.
(Phys.org)—A team of researchers with the University of California, MIT, Lawrence Berkeley National Laboratory and the National Institute for Materials Science in Japan has created images of relativistic electrons trapped in graphene quantum dots. In their paper published in the journal Nature Physics the team describes how they achieved this feat and where they plan to take their work in the future.
As the many unique properties of graphene continue to unfold, scientists seek new ways to harness and eventually make use of them. One such use might be to control electrons to allow their use in nano-scaled devices, which could also inadvertently lead to a deeper understanding of Dirac fermions. In this new effort, the researchers have made progress in that area by devising a means for capturing and holding electrons and for creating images of the result.
Obtaining images of electron waveforms has thus far been particularly difficult—virtually all existing methods have resulted in too many defects. To get around such problems, the researchers took another approach to capturing the electrons. They first created circular p-n junctions by sending voltage through the tip of a scanning tunneling microscope down to a graphene sample below. At the same time, they also applied voltage to a slab of silicon underneath the piece of graphene, which was kept separated by a layer of silicon-oxide and a flake of boron nitride. Doing so caused defects in the boron nitride to ionize, resulting in charges migrating to the graphene.
Transhuman Terminology.
ADHOCRACY
AEONOMICS
A-LIFE
AGORIC SYSTEM
AI-COMPLETE ALEPH ALGERNON AMORTALIST ARACHNIOGRAPHY ARCH-ANARCHY ARCOLOGY ARROW IMPOSSIBILITY THEOREM ARTILECT ASEX ASIMORT ASIMOV ASSEMBLER ATHANASIA ATHANOPHY ATHEOSIS AUGMENT AUTOEVOLUTIONIST AUTOMATED ENGINEERING AUTOMORPHISM AUTOPOTENT AUTOSCIENT BABY UNIVERSE BASEMENT UNIVERSE BEAN DIP CATASTROPHE BEANSTALK BEKENSTEIN BOUND BERSERKER BETELGEUSE-BRAIN BIG CRUNCH BINERATOR BIOCHAUVINISM BIOLOGICAL FUNDAMENTALISM BIONICS BIONOMICS BIOPHILIAC BIOSTASIS B-LIFE BLIGHT BLIND UPLOADING BLUE GOO BOGOSITY FILTER BORGANISM BREAKEVEN POINT BROADCATCHING BRUTE FORCE UPLOADING BUSH ROBOT CALCUTTA SYNDROME CALM TECHNOLOGY CALORIE RESTRICTION CASIMIR EFFECT CEREBROSTHESIS CHINESE ROOM CHRONONAUTS CHURCH-TURING THESIS COBOTS COMPUFORM COMPUTRONIUM CONCENTRATED INTELLIGENCE CONSILIENCE CONNECTIONISM CONTELLIGENCE CONTINUITY IDENTITY THEORY COSMYTHOLOGY CRYOBIOLOGY CRYOCRASTINATE CRYOGENICS CRYONICS CRYONIC SUSPENSION CRYPTO ANARCHY CRYPTOCOSMOLOGY CYBERCIDE CYBERFICTION CYBERGNOSTICISM CYBERIAN CYBERNATE/CYBERNIZE CYBERSPACE/CYBERMATRIX CYBRARIAN CYPHERPUNK DEANIMALIZE DEATH FORWARD DEATHISM DEEP ANARCHY DEFLESH DIGITAL PSEUDONYM DIAMONDOID DISASSEMBLER DISASTERBATION DISTRIBUTED INTELLIGENCE DIVERGENT TRACK HYPOTHESIS DIVERSITY IQ DIVIDUALS DOOMSDAY ARGUMENT DOWNLOAD DRYWARE DUBIFIER DYSON SPHERE ECOCALYPSE ECTOGENESIS
EMBRYOMEME
EMULATION
ENHANCED REALITY
ENVIROCAPITALISM
EPHEMERALISTS
E-PRIME
ESCALATORLOGY
THE ETERNAL LIFE POSTULATE
EUPSYCHIA
EUTHENICS
EVOLUTIONARILY STABLE STRATEGY (ESS)
EVOLUTURE
EXCONOMICS
EXES
EXFORMATION
EXISTENTIAL TECHNOLOGY
EXOPHOBIA
EXOSELF
EXTROPIAN
EXTROPIATE
EXTROPIC
EXTROPOLIS
EXTROPY
FACULTATIVE ANAGOROBE
FAR EDGE PARTY
THE FERMI PARADOX
FEMTOTECHNOLOGY
FLATLANDER
FLUIDENTITY
FOGLET
FORK
FREDKIN’S PARADOX
FUNCTIONAL SOUP
FUTIQUE
FUTURE SHOCK
GALAXY BRAIN
GAUSSIAN
GENEGENEERING
GENETIC ALGORITHM
GENIE
GREEN GOO
GÖDEL’S THEOREM
GOLDEN GOO
GREAT FILTER, THE
GREY GOO
GUY FAWKES SCENARIO
HALLUCINOMEMIC
HIVE COMPUTING
HOMORPH
HPLD
HYPERTEXT
HYPONEIRIA
HYPOTECH
IDEAL IDENTITY
IMMORTALIST
IMMORTECHNICS
IMP
INACTIVATE
INFOGLUT
INFOMORPH
INFORMATION-THEORETICAL DEATH
INLINE UNIVERSITIES
INTERFACER
INTERNALNET
JUPITER-BRAIN
KHAKI GOO
KARDASCHEV TYPES
KNOWBOTS
KOLMOGOROV COMPELXITY
LEONARDO DA VINCI SYNDROME
LINDE SCENARIO
LIQUIDENTITY
LOFSTROM LOOP
LONGEVIST
MASPAR
MATAGLAP
MEGATECHNOLOGY (or MEGASCALE ENGINEERING)
MEMETICS
MEMIE
MEMIUS
MEMOTYPE
MEMOID (or MEMEOID)
MEHUM
MERCHANCY
MESOSCALE
MINDKIND
MOLMAC
MORPHOLOGICAL FREEDOM
MUTUAL REALITY
NANARCHIST
NANARCHY
NANITE
NANOCHONDRIA
NANOFACTURE
NANOMEDICINE
NANOSOME
NANOTECH
(MOLECULAR) NANOTECHNOLOGY
NEG
NEOMORPH
NEOLOGOMANIA
NEOPHILE
NEOPHILIA
NEOPHOBE
NEUROCOMPUTATION
NEURONAUT
NEURON STAR
NEUROPROSTHESIS
NEUROSUSPENSION
NOOTROPIC
NOW SHOCK
NUTRACEUTICAL
OFFLOADING
OMEGA POINT
OMEGON
OMNESCIENCE
O’NEILL COLONY
O’NEILL CYLINDERS
ONTOLOGICAL CONSERVATIVES
OPTIMAL PERSONA
PANCRITICAL RATIONALISM
ORBITAL TOWER
PARTIALATE
PATTERN IDENTITY THEORY
PERICOMPUTER
PERIMELASMA
PERSOGATE
PERVERSION ATTACK
PHARMING
PHYLE
PHYSICAL ESCHATOLOGY
PICO TECHNOLOGY
PIDGIN BRAIN
PINK GOO
PLEXURE
POME
POSTHUMAN
POSTJUDICE
POWERSHIFT
PRISONERS’ DILEMMA
PRIVACY MANAGEMENT
PROLONGEVITY
QUANTUM COMPUTING
QUANTUM CRYPTOGRAPHY
QUASISPECIES
RAPTURE OF THE FUTURE
RED GOO
RED QUEEN PRINCIPLE
RED QUEENED
REMEMBRANCE AGENT
REVERSIBLE
RIF
SANS CEILING HYPOTHESIS
SANTA MACHINE
SAPPER MEME
SCHEME
SENTIENCE QUOTIENT
SHIH
SINGULARITY
SINGULARITARIAN
SKY HOOK
SMART-FACED
SOCIOTYPE
SOLID STATE CIVILIZATION
SPIKE, THE
SPOCK MEME
SPONTANEOUS VOLUNTARISM
SPACE FOUNTAIN
STAR LIFTING
STELLAR HUSBANDRY
STEWARD
STRONG AI POSTULATE
STRONG CONVERGENCE HYPOTHESIS
SUSPENDED ANIMATION
SYNTHESPIAN
TAZ/Temporary Autonomous Zone.
TECHNOCYTE
TECHNOSPHERE
TECHNOCALYPS
TELEOLOGICAL THREAD
THEORETICAL APPLIED SCIENCE
TITHONUS SYNDROME
TIPLER CYLINDER
TIPLERITE
TRANSBIOMORPHOSIS (TRANSBIOLOGICAL METAMORPHOSIS)
TRANSCEND
TRANSCENSION
TRANSCIENT
TRANSCLUSION
TRANSHUMANISM
TRANSHUMANITIES
TRAPDOOR FUNCTION
TURING MACHINE
TURING TEST
ÜBERGOO
UBIQUITOUS COMPUTING
UPLIFT
UPLOADER
UNIVERSAL CONSTRUCTOR
UNIVERSAL IMMORTALISM
UNIVERSAL TURING MACHINE
UTILITY FOG
VACCIME
VASTEN
VENTURISM
VIEWQUAKE
VIRIAN
VIRION
VIRTUAL COMMUNITY
VIRTUAL RIGHTS
VITOLOGY
VIVISYSTEM
VON NEUMANN MACHINE
VON NEUMANN PROBE
WEBORIZE
WETWARE
WORMHOLE
XENOBIOLOGY
XENOEVOLUTURE
XEROPHILIA
XOXER
ZERO KNOWLEDGE PROOF
This may not be the best possible neologism for this sort of entity, but I think it’s a good idea on principle to generate neologisms. They are good for us and solidify our thinking. Bruce Sterling, Speech at Lifelike Computer Characters ‘95.
The researchers say that the monochrome painting — a dime’s width across — is a proof-of-concept that the extremely precise technique can be used to build nanoscale chip-based devices like computer circuits, conductive carbon nanotubes, and for extremely efficient targeted drug delivery.
In order to reproduce the painting, the researchers used a technique first described by Rothemund and colleagues at IBM in 2009. The first step of the process involves folding DNA strands to create the desired shape, with short “staple strands” being used to literally staple the molecules. Then this pattern, which, at this stage, is floating in a saline solution, is poured into patches on a chip whose shapes match the DNA origami’s.
The folded DNA now acts as scaffolding onto which researchers then install fluorescent molecules inside microscopic light sources called photonic crystal cavities (PCC) — much like putting light bulbs into lamps.
Why synthetic diamonds are critical to the QC story.
(Phys.org)—By carefully placing a tiny piece of diamond within a few nanometers of a carbon nanotube, and then sending an electric current through the nanotube, researchers have designed a device that could one day form the building blocks of quantum information processing systems. In their recent study, they have shown that the electrified nanotube’s mechanical vibrations couple to the magnetic (or spin) properties of defects in the diamond. This coupling allows for the quantum states of the nanotube and diamond to be transferred to each other as well as to a second diamond positioned several micrometers away.
The researchers, Peng-Bo Li et al., have published a paper on the new hybrid quantum device in a recent issue of Physical Review Letters.
Diamonds and carbon nanotubes, which are both carbon allotropes, each have their own unique properties that make building such a device possible. Diamond contains defects called nitrogen-vacancy centers that emit highly coherent bright red light. The defects’ optical properties can be well-controlled so that they occupy one of two distinct states, which enables the defects to act as qubits. Carbon nanotubes, for their part, are well-known for their highly advantageous mechanical and electrical properties.
Interesting.
WHAT: Scientists at the National Institutes of Health are reporting new, unexpected details about the fundamental structure of collagen, the most abundant protein in the human body. In lab experiments, they demonstrated that collagen, once viewed as inert, forms structures that regulate how certain enzymes break down and remodel body tissue. The finding of this regulatory system provides a molecular view of the potential role of physical forces at work in heart disease, cancer, arthritis, and other disease-related processes, they say. The study appears in the current online issue of the Proceedings of the National Academy of Sciences.
Scientists have known for years that collagen remodeling plays an important role in a wide variety of biological processes ranging from wound healing to cancer growth. In particular, researchers know that collagen is broken down by a certain class of enzymes called matrix metalloproteinases (MMPs), but exactly how they did this remained somewhat of a mystery, until now.
In the NIH study, the scientists isolated individual, nano-sized collagen fibrils from rat-tail tendons. They then exposed the collagen fibrils to fluorescently-labeled human MMP enzymes. Using video microscopy, the scientists tracked thousands of enzymes moving along a fibril. Unexpectedly, the scientists observed that the enzymes preferred to attach at certain sites along the fibril, and over time these attachment sites slowly moved, or disappeared and reappeared in other positions. These observations revealed collagen fibrils have defects that spontaneously form and heal. In the presence of tension, such as when tendons stretch, defects are likely eliminated, preventing enzymes from breaking down collagen that is loaded by physical force, the researchers suggest. In short, they identified a possible strain-sensitive mechanism for regulating tissue remodeling.
Posted in biotech/medical, life extension, nanotechnology, Ray Kurzweil, robotics/AI | Leave a Comment on Futurist Ray Kurzweil wants to use tiny robots in our bloodstream to fight disease and live forever
Graphene, a two-dimensional wonder-material composed of a single layer of carbon atoms linked in a hexagonal chicken-wire pattern, has attracted intense interest for its phenomenal ability to conduct electricity. Now University of Illinois at Chicago researchers have used rod-shaped bacteria — precisely aligned in an electric field, then vacuum-shrunk under a graphene sheet — to introduce nanoscale ripples in the material, causing it to conduct electrons differently in perpendicular directions.
The resulting material, sort of a graphene nano-corduroy, can be applied to a silicon chip and may add to graphene’s almost limitless potential in electronics and nanotechnology. The finding is reported in the journal ACS Nano.
“The current across the graphene wrinkles is less than the current along them,” says Vikas Berry, associate professor and interim head of chemical engineering at UIC, who led the research.
Posted in computing, mobile phones, nanotechnology, particle physics, quantum physics | Leave a Comment on Atomic bits despite zero-point energy? Jülich scientists explore novel ways of developing stable nanomagnets
Stable nanomagnets that ultimately improves data storage on the smallest of devices.
Abstract: So-called “zero-point energy” is a term familiar to some cinema lovers or series fans; in the fictional world of animated films such as “The Incredibles” or the TV series “Stargate Atlantis”, it denotes a powerful and virtually inexhaustible energy source. Whether it could ever be used as such is arguable. Scientists at Jülich have now found out that it plays an important role in the stability of nanomagnets. These are of great technical interest for the magnetic storage of data, but so far have never been sufficiently stable. Researchers are now pointing the way to making it possible to produce nanomagnets with low zero-point energy and thus a higher degree of stability (Nano Letters, DOI: 10.1021/acs.nanolett.6b01344).
Since the 1970s, the number of components in computer chips has doubled every one to two years, their size diminishing. This development has made the production of small, powerful computers such as smart phones possible for the first time. In the meantime, many components are only about as big as a virus and the miniaturization process has slowed down. This is because below approximately a nanometre, a billionth of a meter in size, quantum effects come into play. They make it harder, for example, to stabilise magnetic moments. Researchers worldwide are looking for suitable materials for magnetically stable nanomagnets so that data can be stored safely in the smallest of spaces.
In this context, stable means that the magnetic moments point consistently in one of two preassigned directions. The direction then codes the bit. However, the magnetic moments of atoms are always in motion. The trigger here is the so-called zero-point energy, the energy that a quantum mechanical system possesses in its ground state at absolute zero temperature. “It makes the magnetic moments of atoms fluctuate even at the lowest of temperatures and thus works against the stability of the magnetic moments”, explains Dr. Julen Ibañez-Azpiroz, from the Helmholtz Young Investigators Group “Functional Nanoscale Structure Probe and Simulation Laboratory” at the Peter Grünberg Institute and at the Institute for Advanced Simulation. When too much energy exists within the system, the magnetic moments turn over and the saved information is lost.
