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A team at the University of Groningen has demonstrated a way to switch off antibiotic agents after just a few hours using warmth or sunlight.
or exposed to sunlight, they reverted to the Z-form, which is all but useless as an antibiotic.
when powered only by the Sun . If you would like to comment on this slideshow or anything else you have seen on Future,
Flower power, a device due to be launched towards the end of this year by Paris-based wireless tech company Parrot, measures sunlight, soil moisture, temperature and nutrient levels in plants,
and whether they should be moved to change sunlight levels. Flower power and related technologies could be vital in developing countries with dry climates.
In the past decade alone, astronomers have been discovering planets outside our solar system or exoplanets, with astonishing speed.
Since these planets are expected to be small and faint compared to their sun, spotting them is tricky with existing ground-based optical telescopes."
the VLT has discovered several worlds outside the Solar system, with the help of an instrument called NACO.
which is just 1/23rd of the distance from the Sun to Mercury.""By far the most powerful combination right now is the combination of transit detections and Doppler spectroscopy,
#But to really find a habitable Earth-twin orbiting a star just like our Sun,
That's one possibility if Harvard professor Daniel Nocera's idea for a device that can harness and store energy from the Sun comes to fruition.
which focuses the sun rays to create obsidian. Other transformative processes include Ginger Krieg Dosier printed sandstone bricks of bio-manufactured masonry grown using bacteria.
And until the sun comes up really that you know authorities can't get in and really begin to assess
and IFC is instrumental in bringing the project in Chile to life. he Atacama desert receives some of the planet steadiest concentrations of direct sunlight according to First Solar.
the Solartab lets its users charge any mobile device using green, sun-fueled energy. And even more impressively, ipad enthusiasts can charge their beloved touch-screen gadget even
as long as the sun is out, the Solartab will always charge at maximum efficiency. To keep this promise,
After adjusting the angle to the sun current position, all that left to do is plug in any smartphone
and shaded sunlight conditions; conventional systems suffer large efficiency losses, if able to work at all, under such conditions.
Unlike traditional building-applied photovoltaic (PV) systems, restricted to use in direct sunlight on very limited skyscraper rooftop space,
Solarwindow#is designed to operate in sunlight and shaded conditions on the many thousands of square feet of glass surfaces common to today#s high-rise towers#a game-changing advantage.
*Capable of producing power in direct sunlight and shaded or low natural light conditions;**Able to generate significant electricity from both natural and artificial light;*
#MIT Turns Up The Heat On Solar PV You might think that fewer steps in the process of turning sunlight into electricity would be the most efficient way to go.
in order to make use of a wider range of the sun energy. The work here is in the solar realm known as thermophotovoltaics,
T) he team inserted a two-layer absorber-emitter device made of novel materials including carbon nanotubes and photonic crystals between the sunlight and the PV cell.
This intermediate material collects energy from a broad spectrum of sunlight, heating up in the process.
facing the sunlight, is an array of multiwalled carbon nanotubes, which very efficiently absorbs the light energy and turns it to heat.
could provide efficiency because of their broadband absorption of sunlight; scalability and compactness, because they are based on existing chip-manufacturing technology;
#Smart sensors that harvest power from sun heat or vibrations European researchers have developed advanced energy harvesting technology that allows wireless sensor networks to power themselves from the sun, heat or vibrations.
But what if sensors could harness energy directly from their environment from the sun, from ambient heat, from radio waves or vibrations?
"Harvesting the sun, vibrations and radio waves The SWAP team are studying, testing and deploying novel technologies that enable sensors to use solar
where the sun emits more than 40%of its radiation. By improving the reflectance of the materials,
as darker shades take in far more solar radiation. How not to soak up the rays With COOL-Coverings
adds to the difficulty of cooling down sun-kissed cities. To meet their objectives, the partners incorporated nanoparticles and micro-or nano-sized pigments into coatings and surface layers. e implemented this technology for three types of material:
It demands a lot of sun, good soil, water and cold temperatures. But how do you install an environmentally friendly and sustainable cooling system in a country so warm?
"We all get heat from sun. We feel it on our bodies when it's warm,
but who ever heard of getting cold from sun? That's what MEDISCO is about.
The process involves single axis tracking concentrating collectors that essentially orient panels towards the sunlight.
#From sunlight to jet fuel: EU project makes first'solar'kerosene An EU-funded research project called SOLAR-JET has produced the world's first'solar'jet fuel from water and carbon dioxide (CO2), a promising technology for a better
using simulated sunlight. However, the results give hope that in future any liquid hydrocarbon fuels could be produced from sunlight
CO2 and water. The process In a first step concentrated light-simulating sunlight-was used to convert carbon dioxide
and water to synthesis gas (syngas) in a high-temperature solar reactor containing metal-oxide based materials developed at ETH Zürich.
Although producing syngas through concentrated solar radiation is still at an early stage of development, the processing of syngas to kerosene is already being deployed by companies,
not only but also that real skin regeneration is occurring##says Zhaoli Sun director of transplant biology research at Johns Hopkins School of medicine.##
#Computer recreates powerful solar flares ETH Zurich rightoriginal Studyposted by Barbara Vonarburg-ETH Zurich on September 26 2014physicists have used computers to model solar explosions
Hans Jurgen Herrmann a professor at the Institute for Building materials says solar flares were not the original focus of the work.
Similar patterns to those in solar flares can also be found in earthquakes avalanches or the stock market. olar explosions do not of course have any connection with stock exchange ratessays Hermann
In the case of solar flares the build up of magnetic energy is emitted in sudden bursts. The sun consists of hot plasma made of electrons and ions.
Magnetic field lines extend from the solar surface all the way into the corona. Moving and twisting bundles of field lines form magnetic flux tubes.
The affected solar area lights up as a solar flare. The radiation extends across the entire electromagnetic spectrum from radio waves and visible light to X-rays and gamma rays.
Observations suggest that the solar flares size distributions show a certain degree of regularity statistically speaking. vents can be arbitrarily large
However calculations based solely on plasma turbulence were also unable to reproduce the occurrence of solar flares in full.
and reached a breakthrough. e have been able to reproduce the overall picture of how solar flares occurthe researcher says.
which control the occurrence of solar flares. Demonstrating such temporal-energetic correspondences is the first step towards a prediction model.
The researchers say this technology would be useful in places where sun and radio waves can t always penetrate such as inside walls
which degrade under exposure to sunlight and can also be difficult to align with imaging sensors. oday s color filtering mechanisms often involve materials that are not CMOS-compatible
and his team to absorb specific nonvisible wavelengths of sunlight. e can tune these materials to pick up just the ultraviolet
Through photosynthesis, plants and some bacteria turn sunlight, water, and carbon dioxide into food for themselves and into oxygen for animals to breathe.
Solar panels can only generate power when the sun shining, and wind turbines can only generate power when the wind blows.
#Solar cell spikes let in 99%of sunlight The more light absorbed by a solar panel active elements,
A new one-step process to etch nanoscale spikes into silicon lets the maximum amount of sunlight reach a solar cell,
Collecting sunlight using these tiny colloidal quantum dots depends on two types of semiconductors: n-type which are rich in electrons and p-type
Because no such planets exist in our solar system the physical nature of super-Earths is largely unknown.
NASA ESA and G. Bacon (STSCL) via U. Chicago) The researchers describe their work as an important milestone on the road to identifying potentially habitable Earthlike planets beyond our Solar system.
Because of its proximity to our solar system and the small size of its host star GJ 1214b is the most easily observed super-Earth.
craters in the solar system may offer clues as to how the moon formed. A massive impact on the moon about 4 billion years ago left the 2500-mile crater.
At 2500 kilometers across the SPA is the largest impact basin on the Moon and perhaps the largest in the solar system.
For nearby observers it briefly appeared brighter than the sun and caused some severe sunburns.
and that it last went through a significant shock event about 115 million years after the formation of the solar system 4567 million years ago.
and more efficient at harvesting energy from the sun. For solar panels wringing every drop of energy from as many photons as possible is imperative.
and most of the energy from the sun is in the visible and infrared spectrum. â#Finding a material that exhibits the bulk photovoltaic effect for visible light would greatly simplify solar cell construction.
Moreover it would be a way around an inefficiency intrinsic to interfacial solar cells known as the Shockley-Queisser limit where some of the energy from photons is lost as electrons wait to make the jump from one material to the other. hink of photons coming from the sun
The component converts heat from the sun into infrared light which can be absorbed by solar cells to make electricity a technology known as thermophotovoltaics.
A typical solar cell has a silicon semiconductor that absorbs sunlight directly and converts it into electrical energy.
Instead of sending sunlight directly to the solar cell thermophotovoltaic systems have an intermediate component that consists of two parts:
an absorber that heats up when exposed to sunlight and an emitter that converts the heat to infrared light
our solar system orbiting a white dwarf star 170 light years away. Using observations obtained with the Hubble Space Telescopeâ
Evidence for water outside our solar system has previously been found in the atmosphere of gas giants
It is likely that the object was as large as Vesta the largest minor planet in the solar system.
In its former life GD 61 was a star somewhat bigger than our Sun and host to a planetary system.
and waterâ##are key in the hunt for habitable planets outside our solar system so itâ#very exciting to find them together for the first time outside our solar system.?
The finding of water in a large asteroid means the building blocks of habitable planets existedâ ##and maybe still existâ##in the GD 61 system and likely also around substantial number of similar parent starssays lead author Jay Farihi from the Institute of Astronomy at the University of Cambridge. hese water-rich building blocks
Imagine the distance between the sun and the star nearest to itâ##a star called Alpha centauri.
Now imagine as many as 10000 of our suns crammed into that relatively small space. his galaxy is more massive than any ultra-compact drawfs of comparable sizesays Jay Strader assistant professor of physics
One explanation for this is a giant black hole weighing in at some 10 million times the mass of our sun. Astronomers are trying to determine
The possible massive black hole combined with the high galaxy mass and sun-like levels of elements found in the stars favor the latter idea.
That is roughly the same efficiency at which the best commercially available solar cells convert sunlight into electricity.
##Solar steam kills germs while off the grid RICE (US) A new sterilization system uses nanomaterials to convert 80 percent of the energy in sunlight into heat,
director of the Laboratory for Nanophotonics (LANP) at Rice university. olar steam efficiency at converting sunlight directly into steam opens up new possibilities for off-grid sterilization that simply aren available today In a previous study last year,
Halas and colleagues showed that olar steamwas so effective at direct conversion of solar energy into heat that it could even produce steam from ice water. t makes steam directly from sunlight,
and exposed to sunlight, the particles heat up so quickly they instantly vaporize water and create steam.
##Dynamo accounts for Sun s weather cycle University of Chicago University of Leeds rightoriginal Studyposted by Richard Mellor-Leeds on May 23 2013u.
what drives the generation of astrophysical magnetic fields like the Sun s. Scientists have known since the 18th century that the Sun regularly oscillates between periods of high and low solar activity in an 11-year cycle
but have been unable to fully explain how this cycle is generated. It has become increasingly important to be able to understand the Sun#s magnetic activity as it is the changes in its magnetic field that are responsible for#space weather#phenomena including solar flares and coronal mass ejections.
When this weather heads in the direction of Earth it can damage satellites endanger astronauts on the International space station and cause power grid outages on the ground.
which makes up the Sun. More importantly it does so in the extreme parameter regime that is relevant to astrophysical bodies.#
#Previously dynamos for large highly conducting bodies such as the Sun would be overwhelmed by small-scale fluctuations in the magnetic field.
The presence of spots on the Sun has been known since antiquity and further analyzed after the invention of the telescope by Galileo in the 16th century.
At the start of the 20th century it was recognized then that these sunspots were the result of the Sun#s magnetic field.
and the filters gradually degrade under exposure to sunlight. The Rice researchers stumbled upon the new technique while studying the hypothesis that cephalopods such as octopus and squid
#New Spanish streetlight powered by the sun and the wind The light is being developed through a collaboration between the Universitat Politècnica de Catalunya and Spanish startup Eolgreen.
Spain University of Seville is also working on a solar wind-powered streetlight, while New york-based Urban Green energy already manufacturers one r
Professor Sun Xiaowei and colleagues at NTU have developed a self-powered smart window that is bi-functional.
"says Sun. The scientists also used a small section of their device to power a red LED,
Sun and team are now focusing on further improving the performance of their device and are looking into commercializing the technology,
and can be used easily outdoors, even in full sunlight. As a result, the new technology lends itself to applications such as 3d electronic billboards that could display different ads at the same time, dependent upon the angle of the viewer."
#Panasonic#s new technology purifies water with sunlight and photocatalysts Drinking clean water is something that many people in the world can't take for granted as they rely on polluted sources
In response to that problem Panasonic is developing a new technology that looks to the sun to clean water extracted from the ground.
The company recently presented a system that uses sunlight and photocatalysts to purify polluted water at a high reaction rate to improve access to clean water where it's needed.
organic photovoltaics) harvesting energy from interior lighting or sunlight for various small devices and sensors that gather information from the environment.
said the soft-spoken inventor. emperature from the sun does not go beyond this level in terms of heating
what every other state is going to have to look at as they start reaching higher and higher levels of solar activity,
He wanted to find a project in which the sun did more than just power a device.
With enough sun, a large lens and an ample supply of sand, he figured he might be able to produce glassware.
He knew the sun would move and the focal point would shift during the process, so he ordered a single 4. 5-foot-wide lens
and solar panels at the other, can pivot from straight overhead down to a 45-degree angle to chase the sun. directed by a CAD design from a connected laptop,
the printer uses the concentrated beam of sunlight to slowly trace an object into the sandbox layer by layer.
The sun melts the sand, which cools into glass. When the electronics began overheating, Kayser cut open a soup can,
The sun melted only the sand, and, after more than four hours, he printed a glass bowl,
Kayser digs the object out of the sandbox TRACKING Kayser attached a cylindrical sun tracker to the frame perpendicular to the lens.
When the sun is directly in line with the lens, it shines straight through an opening in the top of the cylinder.
As the sun shifts, the light comes in at an angle, creating shadows within the cylinder.
they also benefit from the sun tracking, which ensures that they always get direct light.
and the primarily provider would be your solar system and your storage device.####For now, though, it s only a minor threat to utilities that levy high demand charges,
I think you ll see up to 50 percent of solar systems will have energy storage, ##says Rive.####The economics and scale that Tesla has achieved in the automotive market now make stationary energy storage more cost effective and reliable than it has ever been in the past,##JB Straubel,
such as this#solar-powered one that flew cross-country using the power of the sun. But,
##But the maximum radio frequency intensity of the transmission##is only one-fourth that of sunlight,##according to former NASA wireless power transmission engineer Richard Dickinson.
while in sun-blasted Arizona the state s big utility tried to short-circuit a solar boom.
when the sun isn t shining. In Arizona, that credit is calculated at retail rates and APS argued that penalized homeowners who don t go solar as the utility will be forced to raise their rates to pay for the transmission system
and we can build every product under the sun for those people. And we re going to try and do it.##
So she opts for a small home solar system to cover basic needs like mobile charging.
Due to a combination of new found purchasing power, declining solar system costs, increasing kerosene costs, and advances in solar services business models,
Using solar wind, and other forms of passive energy, our future water networks will be operate with far more efficiency and convenience than anything imaginable today.
It will generate between 1-3 Gallons Water/day depending on the humidity conditions and sun conditions.
#New LED light technology sheds light on the future of food LED growing lights, delivering sunlight whatever the weather.
Powering the Entire Solar system At first blush, most will imagine a space-based solar array powering our energy hungry businesses on earth,
the amount of sunlight that hits it varies greatly as the geosynchronous satellite and Earth spin.
which is capable of concentrating the sun rays into a stream 2000x more powerful. The process of trapping sunlight also produces water that can be used to produce potable water and other modern day amenities such as air conditioning.
Scientists are predicting that the HCPVT could provide sustainable energy and fresh water to communities all around the world.
which is attached to a tracking system that determines the best angle based on the position of the sun. Such system can be applied profitably in sunny regions where sustainable energy,
With the high concentration of the sun rays and a low cost design the team believe they charge $250 per square meter which is three times lower than normal systems.
At night you are not collecting energy from the sun and it takes a lot of power to broadcast internet signals.
the turbine helium-inflated housing is durable enough for deployment in either the blazing sun or freezing snow.
even if your previous system involved a sun dial and carrier pigeons. The things even have a cool name:
when the wind stops blowing and the sun goes down. The end goal for Tesla is that cheap batteries could help Tesla deliver its $35, 000 third generation electric car.
As the only organisms capable of converting sunlight into food, plants are the powerhouses that produce all of the sustenance On earth.
Like the leaves of a plant, the material requires only exposure to sunlight and a small amount of water to produce oxygen."
non-ionizing solar radiation. They convert it by luminescence and operate on the principle of collecting radiation over a large area.
small organic molecules to absorb specific nonvisible wavelengths of sunlight.""We can tune these materials to pick up just the ultraviolet and the near infrared wavelengths that then'glow'at another wavelength in the infrared,
or brightening, how this affects the amount of sunlight reaching the planet's surface and what that means for climate change.
2. The likely effect of all that extra solar radiation reaching the Earth's surface would be faster global warming.
which help to reflect the Sun's rays back into space and so cool the planet.
tends to absorb sunlight rather than scattering it back into space. This means that it warms the troposphere in much the same way as carbon dioxide and other greenhouse gases.
which measured incoming solar radiation rather than visibility, concluded that the skies have brightened over most land areas,
#Solar magnetism twists braids of superheated gas Geoff Brumfiel hears from researcher Jonathan Cirtain why the Sun s atmosphere is hotter than its surface.
The Sun's atmosphere is just jam-packed full of magnetic field, says Cirtain. As the lines of those fields cross and twirl, the theory went,
a camera capable of taking pictures of the Sun's corona in fine detail. The imager was placed on board a research rocket at the White sands Missile Range in New mexico
which time it took a series of pictures of the Sun (see video). A team member started analysing the data on the drive back from the missile range,
The group now hopes to put the Hi-C on a next-generation spacecraft that will monitor the Sun for longer periods of time e
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).
At the same time the novel cells could be built into so-called multijunction solar cells#compound devices that incorporate several different types of semiconductor material in layers like a sandwich to absorb as much of the energy in sunlight as possible.
Such multijunction cells have converted more than 43 percent of the energy in sunlight into electricity#currently
but they can be made cheaper by combining them with low-cost lenses to concentrate the sunlight onto smaller versions of the cells.
#Nearby star is almost as old as the Universe Astronomers have discovered a Methuselah of stars#a denizen of the Solar system's neighbourhood that is at least 13.2 billion years old and formed shortly after the Big bang."
lies at a comparatively short distance of 190 light years from the Solar system and has been studied by astronomers for more than a century.
and more accurate determination of the star s distance from the Solar system, using 11 sets of observations recorded between 2003 and 2011 using the Hubble space telescope s Fine Guidance Sensors,
however, and Baker and his team now attributes its creation to an interplanetary shock wave#a travelling outburst of solar-wind particles from the Sun#that has been detected by other craft.
#Moon-size exoplanet circling sun-like star smallest yet A newfound world called Kepler 37 b could easily blend in to the long and growing list of known extrasolar planets,
But the new addition to the catalogue of 800-plus exoplanets stands out in at least one major respect#it is far smaller than any planet yet discovered outside of our solar system.
"What makes this very interesting is this is a planet smaller than anything we see in our own inner solar system,
The researchers used NASA s Kepler space telescope to identify the three planets orbiting Kepler 37, a star some 200 light-years away that is somewhat smaller than the sun. The spacecraft monitors more than 150,000 stars in the Milky way
Orbiting its star at one tenth the distance between Earth and the sun, tiny Kepler 37 b must be extremely hot."
All three planets keep closer to the star Kepler 37 than any planet orbits the sun."It just shows that Kepler has just an extraordinary ability to see a wide diversity of planetary architectures,
"Our solar system just contains nothing whatsoever inside Mercury s orbit. But it turns out that the average planetary system has a lot going on in the inner region.
which uses sunlight for the same purpose. Chemosynthesis also fuels life at other deep-sea locations such as hydrothermal vents
the crust"would be the first major ecosystem On earth to run on chemical energy rather than sunlight,
But the software will be of even more benefit on future missions to the outer solar system and eventually planetary systems outside our solar system.
That means renewable energy sources like wind or sunlight which are often patchy are not reliable enough.
which make fuel from sunlight just like plants says Lee Cronin at the University of Glasgow UK.
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