allowing, for instance, a consumer to control his TV, house lights, and AC unit from a smartphone#or augmented reality devices like Glass##isn t actually all that far off.
##Clocking in at a tiny eight-inches long and 2. 1 ounces light, the PD-100 Black Hornet, was previously a mere#prototype back in 2009,
expect it to use its core data-handling skills to shed new light on familiar age-related maladies.
The algorithm alters the light from each individual pixel so that, when fed through a tiny hole in the plastic filter,
rays of light reach the retina in a way that re-creates a sharp image. Researchers say the idea is to anticipate how your eyes will naturally distort whatever's on screen something glasses
which causes different parts of the lens to refract light differently. While similar methods have been tried before,
#New LED light technology sheds light on the future of food LED growing lights, delivering sunlight whatever the weather.
We need to make better use of land, light and logistics for an increasingly urban population.
and environmental controls that regulate temperature, humidity and light to produce vegetables, fruits and other crops year-round.
and can produce light of varying intensity. Because it produces less heat, the light can be moved closer to the plants.
This increases efficiency, not just in terms of energy use but by allowing layers of growing plants to be packed more densely, making more efficient use of space.
they can be combined to create perfect lighting that provide light on the ideal spectrum for a plant s growth.
Evidence is emerging that specific wavelengths of light have distinct effects on crop yield, quality, and even pest and disease resistance.
There is potential for these multifunctional techno-greenhouses built around LED grow lights to increase the quality of the food we eat
"So Vessyl understands that you drank 20 ounces of Red Bull or half a can of Miller Light,
your light adjusts to the level that you want it. All of that can start to happen
but many involve large machines employing a system of mirrors to direct light with limited viewing angles.
Itl include optimized lights set to a wavelength to grow perfect plants and specialized air-conditioning that keeps temperature and humidity set to a constant level.
and the neon lights of Shibuya shining bright. No, you won be able to see the most impressive part,
The mirrors will be positioned so they can direct light onto two photovoltaic panels 24 hours a day.
fluorescent overhead lights. The new Cree T8 bulb looks very much like the traditional T-8 fluorescent tube wee been using since the 1970s.
then collects and analyzes the light reflected back. The Kickstarter launched Tuesday morning with several funding levels:
In 2005, Stanford scientist Karl Deisseroth discovered how to switch individual brain cells on and off by using light in a technique that he dubbed ptogenetics,
And like that, the bulb lights up. Wireless homes Don worry about getting zapped: Hall assures that the magnetic fields used to transfer energy are erfectly safein fact,
In order to the lamp beginning to radiate light, it is necessary in motion this is specially equipped with a mechanism like a pendulum.
showing it was able to adapt to changing patterns of light in its surroundings within 1 to 2 seconds,
Postdoctoral fellow Javier Fernandez and Wyss Institute director Donald Ingber created an artificial version of chitin that is light clear strong as aluminum
and graduate student Ganghun Kim, the microscope technique works when an LED light is illuminated and guided through a fiberoptic needle or cannula.
For instance, amber hallway lights are bright enough for occupants to navigate the corridor, but not disruptive of the human eye production of rhodopsin (which helps us see in darkness,
#Quantum'entangled'light sharpens microscopes'images The first microscope that uses the eerie trick of quantum entanglement to increase its sensitivity has been developed by Japanese researchers.
or particles of light, the microscope reveals things that are completely transparent, visualizing them in a much better quality than could be done with ordinary light.
Physics guru Albert Einstein once famously called it"spooky action at a distance.""This unique property is already being looked at as a potential mechanism for quantum information technologies, such as quantum cryptography and quantum computation.
or closer together than the wavelength of light used in the microscope to illuminate them.
and measuring the difference in the phase of the light between the two photon states
and biofluorescence in the mesopelagic zone found at 656 to 3281 feet (200 to 1000 m) below the ocean's surface where light is dim
Bioluminescence is created the light by living organisms through a chemical reaction in the creatures'bodies. Biofluorescence on the other hand occurs
when organisms absorb high-energy short wavelength light (such as ultraviolet light) then re-emit that light at a longer wavelength.
This process makes the organisms appear to glow with an eerie colored light (often green or red.
"In this paper the researchers dig down deep into the fundamental interaction between light and the moving electron,"said Claire Gmachl, professor of electrical engineering at Princeton."
"You can't persuade shareholders that they should invest money indefinitely in the absence of any light at the end of the tunnel,
Any federal reliance on cloud computing, for example, will have to be evaluated in the light of security requirements.
In that device, light is run through a system of micromirrors before reaching the sensor2. But longer, microwave wavelengths#for applications such as airport scanners#require a different approach,
For the latest study, the researchers turned to metamaterials#artificial structures patterned to interact with light in exotic ways.
Exposed to the sun, a solar cell employing such nanowires can turn nearly 14 percent of the incoming light into electricity#a new record that opens up more possibilities for cheap and effective solar power.
and phosphorus that absorbs much of the light from the sun (a property known as its band gap).
Now we absorb 71 percent of the light above the band gap and we can certainly increase that,
in which a mix of quantum dots tuned to absorb different wavelengths of light could capture more of the energy in the solar spectrum.
But the light#emitted after a beam of electrons kicks a material s own electrons into a higher energy state#is faint and diffuse,
giving materials scientists a new tool for investigating the behaviour of light in the interiors of the complex nanostructures used in lasers, light-based circuits and solar cells."
and energy of the light (see Metamaterial TV). The device is sensitive enough to pick up a signal even from materials that are barely luminescent, such as metals.
The team has mapped also the distribution of light in the silicon nanodiscs that are used as a coating on solar cells to improve efficiency,
Lukas Novotny, an optical physicist at The swiss Federal Institute of technology in Zurich, says that cathodoluminescence could be a useful tool for improving the performance of light-emitting devices and solar cells,
as indicated by a light. An implant recorded neural activity in the rat's motor cortex (the area that controls its movements), compared it to earlier recordings,
the rod and cone cells that convert light into electrical signals transmitted via the optic nerve to the brain s visual cortex for processing.
scientists say that the images shed fresh light on the first instants of the Universe s birth and peg the age of the Universe at 13.82 billion years#slightly older than previously estimated."
Light from light-emitting diodes is sent then sideways through the slab, and some of it is scattered out of the slab in a direction determined by the spacing and orientation of the grooves.
of which sends a light ray out of the slab in a particular direction. Albert Jeansthe array of gratings and the directions of the corresponding light beams are fixed.
But he points out that light designed to bleed between each of the 64 different views#to prevent jarring jumps#is 10 times as bright as typically used.
Shining a light on the cells triggers a cascade of biochemical reactions that transfer electrons along a chain of molecules#and switches the transistor on.
A microscope sends sheets of light rather than a conventional beam through the fish's brain,
The new knowledge the project has generated can shed more light on diseases that affect the myelin
which means that it can be used to visualize objects much smaller than the wavelength of the light being used.
#Printing Color Images Without Ink A new technology creates colorful images by manipulating light rather than applying ink.
and corresponded to the desired absorption of light at various wavelengths. When light was shined onto the structure
the holes allowed certain wavelengths through at specific locations, producing the colorful logo. nlike the printing process of an inkjet or laserjet printer,
#Floating, Touchable'Fairy Lights'Unveiled A team of researchers from Japan has found a way to use a high-speed laser to create a touchable plasma display in mid-air.
as if the light has physical substance, the researchers say. DNEWS: Laser Technique Etches Water Repellence Into Metalthe team of researchers from the University of Tsukuba, Utsunomiya University,
which they've dubbed"Fairy Lights, "has advantages over other 3-D displays. For starters, it doesn require physical matter arranged
when the light is on. Bring The nternet Of Thingsinto Your Homeesearchers have called it i-Fi?
the concept could provide a big boost to connectivity speeds with the potential to use every light in a building as an Internet transmitter. via Phys. or a
#'Dog Nose'Light Sniffs Out Disease Here a riddle: What kind of light can smell? Answer:
An optical dog nose. Researcher James Anstie at the University of Adelaide and his team are developing an instrument theye dubbed an optical dog nose that uses a specialized laser known as an optical frequency comb to provide a quick and noninvasive way to analyze a person
Using light to smell might be a little counterintuitive, but stick with us for a moment. Anstie and his team shine the laser onto a sample of gas.
the laser system uses light to ensethe range of molecules that are present in the sample,
which the driver is going, the coupe lights up accordingly. When hit with an electric charge, this special RF-C glows because of an electroluminescent paint.
the quicker the lights will glow. Although Lexus doesn't plan to add this feature to any current cars,
the SCIO (pronounced ki-oh uses a source light and an optical sensor to identify the molecular structure of any given material.
and those vibrations interact with the light to create an optical signature. By analyzing the light spectrum of each specific signature,
By positioning mirrors along the channel that reflect light into a microscope the researchers could observe the levitating cells in real time.
a material that can be stimulated in some way to produce light and a"resonant cavity"that will ring with light waves of particular wavelengths
Light resonating in the cavity stimulates the material to emit even more light, greatly amplifying the light to create a laser.
Researchers had used previously living cells to fashion lasers by loading the cells with fluorescent proteins
so that a zap with one color of light makes them radiate at another color. The light then resonates in the sphere,
triggering laser action and amplifying itself. Crucially, each laser shines at a couple of distinctive wavelengths depending on the precise size of the sphere,
#Desktop sonic black hole emits Hawking radiation A model black hole that traps sound instead of light has been caught emitting quantum particles thought to be the analogue of the theoretical Hawking radiation.
Their gravity is so strong that nothing not even light can escape from their edge a boundary called the event horizon.
A galaxy should emit about 10 per cent of its light in the mid-infrared range says team leader Jason Wright at Pennsylvania State university.
Microlensing detects planets by watching how their gravity affects the light of a distant background star.
As one star passes in front of another as seen from Earth light from the background star is bent gravitationally
The planet isn't blocking the background star's light. It's just that the mathematics of focusing is disrupted by the planet's gravity he says.
and coloured lights Spacex CEO Elon musk gave the world its first glimpse of the upgraded Dragon spacecraft.
whether and by how much the light from the supernova is being messed with by other things like nearby galaxies or the expansion of the universe.
For example the gravity from a massive object like a galaxy can magnify light from another object like a supernova bending its light waves
its light is being lensed by a galaxy in front of it. The supernova PS1-10afx was discovered in 2010 using the Pan starrs telescope in Hawaii.
Since we know what the light from PS1-10afx should look like without gravitational lensing a standard candle any differences can be attributed to the mass of the galactic lens
#Star dust casts doubt on recent big bang wave result An imprint left on ancient cosmic light that was attributed to ripples in spacetime
Because emissions from dust vary with wavelength this should allow researchers to better separate out the contributions to polarised light from dust.
Laser signals carry more data but the light is almost undetectable by the time it reaches Earth. Now a nanoscale light detector could make such deep-space missives easier to read.
The net is fitted with sensors that look for light reflecting from small pieces of debris and automatically aligns itself
To maximise the chance of cloudless skies LLCD will be able to beam its light to any of three detectors in New mexico California or Spain.
Extreme UV is a range of light suitable for observing planetary atmospheres says Shujiro Sawai of the Japan aerospace exploration agency (JAXA.
When a planet transits a star the amount of light it blocks is used to calculate its size.
because it requires teasing out subtle periodic variations in a star's light. Fabienne Bastien of Vanderbilt University in Tennessee and colleagues used Kepler data to watch instead for flickers in starlight due to short-lived convection cells or granules on the star's surface.
So Cahoy and colleagues are working on using light to transfer data instead. Easier to focus
then come together in space to form a light, powerful satellite. A network of such orbiters should be able to provide coverage that is similar to the signals terrestrial cellular towers already pump out."
because of this process, much light is lost, and displays only reach about 70 to 80 percent of the National Television Standard Committee color gamut.
With more light shining through the pixels, LCD TVS equipped with Color IQ produce 100 percent of the color gamut,
However this DNA is produced only when activated by the presence of a predetermined molecule or another type of input such as light.
Furthermore the researchers found that they could reverse the emotional association of specific memories by manipulating brain cells with optogenetics a technique that uses light to control neuron activity.
Then for mice that had received the fear conditioning the researchers stimulated the labeled cells in the dentate gyrus with light
For male mice that had received originally the fear conditioning they activated the memory cells involved in the fear memory with light for 12 minutes while the mice spent time with female mice.
but also light much as window blinds tilt to filter the sun. Researchers say the work could lead to waterproofing and anti-glare applications such as smart windows for buildings and cars.
and found she could control how much light passed through based on the angle at which the pillars bent.
While the material is sensitive to a broad range of frequencies the actual percentage of light absorbed is small.
The angle at which light should seem to arrive from the simulated image is sharper than the angle at
which light would arrive from the same image displayed on the screen. So the physical pixels projecting light to the right side of the pupil have to be offset to the left
That requires that a transparency patterned with an array of pinholes be laid over the screen blocking more than half the light it emits.
while letting much more light pass through. Wetzstein envisions that commercial versions of a vision-correcting screen would use the same technique.
In image-processing schemes with incoherent light normal light that we have around us nonlaser light you're always dealing with intensities.
The light from the diode lasers passes through a transform lens onto the carefully positioned diffraction grating a plate of glass scratched with parallel lines.
However instead of dispersing light at different angles which it s designed to do the grating forces the beams into the same direction superimposing them on one another.
The brighter the light, the more steam is generated. The new material is able to convert 85 percent of incoming solar energy into steam a significant improvement over recent approaches to solar-powered steam generation.
these molecules, found in the bacteria Haloarcula marismortui and Haloarcula vallismortis, did not induce a strong enough photocurrent an electric current in response to light to be useful in controlling neuron activity.
The result of this screen, Jaws, retained its red-light sensitivity but had a much stronger photocurrent enough to shut down neural activity. his exemplifies how the genomic diversity of the natural world can yield powerful reagents that can be of use in biology and neuroscience,
and was just as effective as that of existing silencers that rely on other colors of light delivered via conventional invasive illumination.
With this kind of microscope, the light emitted by the sample being imaged is sent through an array of lenses that refracts the light in different directions.
Each point of the sample generates about 400 different points of light, which can then be recombined using a computer algorithm to recreate the 3-D structure. f you have one light-emitting molecule in your sample,
rather than just refocusing it into a single point on the camera the way regular microscopes do,
these tiny lenses will project its light onto many points. From that you can infer the three-dimensional position of where the molecule was,
Patterns of light and dark on the first modulator effectively turn it into a bank of slightly angled light emitters that is,
With the technology that has historically been used to produce glasses-free 3-D images known as a parallax barrier simultaneously projecting eight different viewing angles would mean allotting each angle one-eighth of the light emitted by the projector
Bridge technology Passing light through two modulators can also heighten the contrast of ordinary 2-D video.
One of the problems with LCD screens is that they don enable rue black A little light always leaks through even the darkest regions of the display. ormally you have contrast of,
so that it (a) doesn block as much light and (b) gets better resolution. The second, he says,
and the solid angle of light coming out from that plane, that is fixed, Cossairt says. hat that means is that
In a digital camera the lens focuses the incoming light so that light reflected by a small patch of the visual scene strikes a correspondingly small patch of the sensor array.
In lower-frequency imaging systems by contrast an incoming wave whether electromagnetic or in the case of sonar acoustic strikes all of the sensors in the array.
But these photoswitches can be triggered to return to the other configuration by applying a small jolt of heat, light,
#A new angle on controlling light Light waves can be defined by three fundamental characteristics: their color (or wavelength), polarization, and direction.
But now, for the first time, MIT researchers have produced a system that allows light of any color to pass through
While the amount of light reflected at each of these interfaces is small, by combining many layers with the same properties,
most of the light can be reflected away except for that coming in at precisely the right angle and polarization.
Previous work had demonstrated ways of selectively reflecting light except for one precise angle, but those approaches were limited to a narrow range of colors of light.
and light lost to reflections, and re-emission, so the ability to selectively control those reflections could improve efficiency.
roughly 90 percent of the light coming in within that angle was allowed to pass through. While these experiments were done using layers of glass and tantalum oxide,
calls this an ngenious application. n a macroscopic scale this is equivalent to observing the world through a set of louvers that allow light to enter from one direction only,
Each type is specialized to respond to a particular variety of visual input for example, light or darkness, the edges of an object,
Other known ganglion types respond only when light is turned on or off, and still others monitor the overall level of light
which add functions such as conducting electricity or emitting light. The new materials represent a simple demonstration of the power of this approach
and run the sample through a machine that detects any light emitted. Results can be plugged into the company software,
because light and oxygen damage the photosynthetic proteins. Usually plants can completely repair this kind of damage,
and other highly reactive molecules produced by light and oxygen, protecting the chloroplasts from damage.
but carbon nanotubes could act as artificial antennae that allow chloroplasts to capture wavelengths of light not in their normal range, such as ultraviolet, green,
tumors failed to spread. his elegant study sheds new light into the extracellular matrix proteins involved in various steps of the metastatic cascade,
that sheds empirical light on the inner workings of health care in the U s. The study takes advantage of Oregon recent use of a lottery to assign access to Medicaid, the government-backed health-care plan for low-income
the new system just deploys that hardware in a manner more in tune with the physics of low light-level imaging and natural scenes.
The MIT researchers system by contrast fires repeated bursts of light from each position in the grid only until it detects a single reflected photon;
and too much light could damage it. Our eyes are a very good example of this but other biological systems are the same.
"Kadambi says. hat is because the light that bounces off the transparent object and the background smear into one pixel on the camera.
In 2011 Raskar group unveiled a trillion-frame-per-second camera capable of capturing a single pulse of light as it travelled through a scene.
Conventional cameras see an average of the light arriving at the sensor, much like the human eye, says James Davis, an associate professor of computer science at the University of California at Santa cruz. In contrast,
what happens when they take a camera fast enough to see that some light makes it from the lashback to the camera sooner,
#Persuading light to mix it up with matter Researchers at MIT have succeeded in producing and measuring a coupling of photons
the light does not even get absorbed. g
#Anklebot helps determine ankle stiffness For most healthy bipeds, the act of walking is given seldom a second thought:
or lights, or battery packs, or other equipment, which the mobile cubes could transport. n the vast majority of other modular systems,
For this study, the researchers found that light with a wavelength of 980 nanometers worked best.
if the wavelength of light is increased into the infrared range. The researchers are also working on modifying the system
optical waveguides to carry light, hollow tubes to carry drugs, and conductive electrodes to carry electrical signals.
For example, light could be transmitted through the optical channels to enable optogenetic neural stimulation, the effects
Although the two materials are structurally similar both composed of hexagonal arrays of atoms that form two-dimensional sheets they each interact with light quite differently.
The hybrid material blocks light when a particular voltage is applied to the graphene, while allowing a special kind of emission and propagation,
One of the consequences of this unusual behavior is that an extremely thin sheet of material can interact strongly with light,
while light interacting with hbn produces phonons. Fang and his colleagues found that when the materials are combined in a certain way,
The properties of the graphene allow precise control over light, while hbn provides very strong confinement and guidance of the light.
Combining the two makes it possible to create new etamaterialsthat marry the advantages of both,
says, his work represents significant progress on understanding tunable interactions of light in graphene-hbn.
the group used light to ionize, or charge, neutral ytterbium atoms emerging from a small heated oven,
if light is polarized so that it runs parallel to the long axis of organic solar cell molecules it will be absorbed;
This design allowed the researchers to make the organized areas of the cell effectively invisible by controlling the polarity of light aimed at the active layer.
Conventional pigments produce colors by selectively absorbing light of different wavelengths#for example red ink appears red
A similar effect can be realized at a much smaller scale by using arrays of metallic nanostructures since light of certain wavelengths excites collective oscillations of free electrons known as plasmon resonances in such structures.
This enhanced resolution at the diffraction limit of light is critical for data storage digital imaging and security applications.
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