#This Woman Sees 100 Times More Colors Than The Average Person When Concetta Antico looks at a leaf she sees much more than just green.
Around the edge I ll see orange or red or purple in the shadow; you might see dark green
In the Arctic for example there isn't enough sunlight to justify solar power for months at a time
-or no-carbon economic development projects such as expanding their energy generation capacity with renewables like sun and wind instead of fossil fuels.
#Earth's Water Is Older Than The Sun Since water is one of the vital ingredients for life On earth scientists want to know how it got here.
One theory is that the water in our solar system was created in the chemical afterbirth of the Sun
#But a new study published today in Science suggests that at least some of Earth s water actually existed before the Sun was born
#If water in the early Solar system was inherited primarily as ice from interstellar space then it is likely that similar ices
or whether it was cooked up in the birth of the Sun.#To find out researchers used mathematical models to#virtually recreate#the young solar system's protoplanetary disk--the cloud around the newborn#Sun. They found that based on the temperature
and radiation conditions that would have existed back then it wasn t possible for the young solar system to create the ratios of hydrogen
which the solar system was born. And since other solar systems would have formed in the same interstellar medium the findings suggest that the origins of water On earth were not unique
and that the thirst-quenching#life-supporting substance may be common on exoplanets throughout the galaxy x
When the sun isn't shining or the wind isn't blowing future versions of this battery could release energy captured during more productive times into nations'power grids.
It also might make sun-and wind-produced electricity cheaper; by storing extra energy that isn't being used less electricity is wasted in the long run.
Graphite absorbs the sun's rays and heats up. This creates a pressure differential that sucks water from the bottom into the top
This sponge converts 85 percent of the solar energy in sunlight it absorbs into heat, the authors wrote in the study,
or using a system of mirrors to concentrate sunlight, which are both more expensive and inefficient
#Antares orb-3 accident A very unfortunate incident for NASA and the commercial orbital transportation services program took place yesterday.
The Antares rocket that was about to send the Cygnus spacecraft on the ISS exploded a few seconds after its launch from NASA's Wallops flight facilities.
The Antares launcher and the Cygnus spacecraft it was carrying were developed both and operated by Orbital Sciences corporation one of the two private companies
Antares is a two-stage rocket and in its first stage it uses a pair of liquid propellant motors originally designed (and constructed!)
and their will to resume Antares/Cygnus missions after the accident investigation is resolved. The COTS program apart from its obvious mission of ISS resupply also aims to validate the privately developed Dragon and Cygnus spacecraft.
#Urban vegetable garden system with LED lighting Keystone Technology LED vegetable garden system is a cultivation system for indoor plant factories that uses LED lighting instead of sunlight.
and does not have the coarse quality of lettuce grown in sunlight. Because it is softer it is a vegetable that is easy to eat even for elderly people.
and polyphenols than with vegetables grown in sunlight. ith this system there will be differences in production capacity depending on the shape of the plant.
In that time, the process has achieved almost 100 percent efficiency in transporting the energy of sunlight from receptors to reaction centers where it can be harnessed a performance vastly better than even the best solar cells.
We can change the way light waves are being reflected at will and ultimately focus a large area of sunlight onto a solar power tower
whether the sun is shining or the wind is blowing. But if a producer could store energy from those sources
Other programmable materials could pay off in improved building environments. e want materials that transform themselves, depending on sunlight, moisture, humidity levels,
The central black hole is estimated to be 150 million times the mass of our sun, and the companion weighs in at 4 million solar masses.
ripples in the fabric of space-time. ee been thinking a lot about using these methods to detect gravitational waves from pulsarsncredibly dense stars that are the mass of our sun compressed into a 10 km radius and spin at 10 to 100 times a second,
whereas waves in natural sunlight vibrate in all directions. Manipulating the polarization of light is essential for the operation of advanced microscopes, cameras and displays;
#Bioadhesive Nanoparticles Help Protect Your Skin From the Sun Dermatologists from Yale university have developed a new sunscreen made with bioadhesive nanoparticles that doesn penetrate the skin,
The new design extends the cell effective life in air by more than 10 times, with only a marginal loss of efficiency converting sunlight to electricity.
which has remarkable efficiency converting sunlight to electricity. Despite this success the delicate nature of perovskite a very light, flexible, organic-inorganic hybrid material stalled further development toward its commercialized use.
with only a marginal loss of efficiency converting sunlight to electricity. The study was published online in the journal Nature Nanotechnology.
solar panels can be tilted to track the position of the sun over the course of a day.
The 20 per cent comes from sunlight, which is captured by a unique solar panel on top of the battery,
The 20 per cent comes from sunlight, which is captured by a unique solar panel on top of the battery,
#Artificial'plants'could fuel future cars Scientists have taken a big step towards creating artificial'plants'that can use only sunlight to make gasoline
a type of solar power based on the ability of plants to transform sunlight, carbon dioxide and water into sugars.
who coordinates the efforts to minimize the chances of life inadvertently crossing the solar system a
and our capacity to turn sunlight into electricity for Australian consumers and small businesses, "Mr Shorten said.
or biofuels when exposed to the sun. The underlying concept is that such functions will,
but, when the sun can provide electricity to the dwelling, the PUV, equipped with a natural gas-powered generator, generates that power.
hen the sun is out. Sun is available during the day, when wee at work. So, electricity storage is needed.
What wee doing is taking a different approach to battery storage where the batteries wee using for this project were once a part of a vehicle.
and setting of the sun, ensuring that we sleep at night. One of the reasons this is possible is
it may soon be feasible to harness the sun to split water. In the Labasianscientist (Oct 13, 2015)- Researchers at the University of Tokyo and Miyazaki University have produced hydrogen under natural sunlight at an energy conversion efficiency of 24.4 percent,
the highest ever achieved, using high efficiency solar cells to power water electrolysis. Their results, published in Applied Physics Express,
#Nanoscientists Convert Sunlight into Liquid fuel Using Nature and Technology Imagine creating artificial plants that make gasoline
and natural gas using only sunlight. And imagine using those fuels to heat our homes or run our cars without adding any greenhouse gases to the atmosphere.
a type of solar power based on the ability of plants to transform sunlight, carbon dioxide and water into sugars.
Further field tests are necessary to see how the nano-dispensers perform in sunlight varying temperatures and humidity levels.
"said Wujin Sun, lead author of the study and Ph d. student in Gu's lab. When the nanoclew comes into contact with a cell,
which protect the organisms from negative effects of sunlight, such as DNA damage. The research also shows that the exact manner in which the photoreceptors bind to the DNA is novel.
It tends to develop after years of sun exposure, and is most commonly found on areas such as the head, neck,
Media enquiries Mandi Barnard Marketing Coordinator+27 (0) 21 938 9505+27 (0) 82 573 4477 mandi@sun. ac. za
Marketing and Communication Office Faculty of medicine and Health Sciences Stellenbosch University Prof Andr van der Merwe Head of the Division of Urology arvdm@sun. ac. za Department
Based on artificial photosynthesis, the process uses sunlight and carbon dioxide to make the building blocks for renewable plastics as well as fuels, paints,
one recent development is proposed a new $75 million round of funding for an Energy department project for making fuel out of sunlight, carbon dioxide, and water.
The new process starts by harvesting sunlight with a nanostructure of wires made from silicon and titanium:
hen sunlight is absorbed, photo-excited electron#hole pairs are generated in the silicon and titanium oxide nanowires,
at least that's what I generally need money for after the sun goes down. Not that I don't think this idea has merits.
Homes with rooftop solar panels and batteries can actually use energy from their solar systems during power outages and
Last year, nearly 645,000 US homes and businesses were using power from the sun. That like saying every person in Nashville,
that at higher temperatures resultant from prolonged exposure to sunlight, solar cells become increasing inefficient at converting sunlight photons into electricity.
however, the material allows visible sunlight through to the cell, thereby preserving the energy that required to produce electricity.
the overlay may actually provide an enhancing effect on the cell capacity to absorb sunlight in addition to increasing cell efficiency through the cooling mechanism.
the technology works in the face of direct sunlight and was tested as such when it was installed on a Stanford rooftop.
During testing, an overlay was fitted to a solar absorber a device that provides an analogue to the properties of a solar cell and measures absorption of solar radiation,
where sunlight absorption is required either for functional (such as solar cells) or aesthetic reasons (such as maintaining the colors for cars, clothes etc
which artificially triggers the light sensors in a person's eyes to make their brain believe the sun is coming up.
#Solar activity is linked NOT to global warming: Sunspot theory of climate change is the result of an ancient error in the data The theory that solar activity is linked to rising global temperatures has been cast into doubt after scientists corrected an ancient error in the calculations.
Until now, the general consensus was that solar activity-in particular sunspots -and temperatures have been trending upwards since the harsh winters of the 17th century when the spots were thought to have been at a low.
But when the error was corrected, the records show there was no such culmination in solar activity in the late 20th century,
suggesting climate change cannot be plotted using this sunspots method. Scroll down for video In fact, solar activity appears to have remained relatively stable
since the 1700s while global temperatures have fluctuated. According to the previous calculations, harsh winters in the 17th and 18th centuries corresponded with low numbers of sunspots,
which suggested a link between climate and solar activity. This period is known as the Maunder Minimum,
and solar activity is said to have peaked in the late 20th century, sometimes called the Modern Grand Maximum, around the time of the Industrial revolution.
known as the Wolf Sunset Number and the Group Sunspot Number, showed different levels of solar activity before 1885,
The Group Sunspot Number had a major error that showed a gradual increase in solar activity for the past 300 years.
we then consider the implications on our knowledge of solar activity over the last 400 years.''
''The newly corrected series clearly indicates a progressive decline of solar activity before the onset of the Maunder Minimum,
solar activity had returned already to levels equivalent to those observed in recent solar cycles in the 20th century.'
'And the trends recorded are over much longer periods than the well known 11-year cycle of the sun,
Exospheres are the most common type of atmosphere in our solar system, so scientists are keen to learn more about them. t's critical to learn about the lunar exosphere before sustained human exploration substantially alters it,
Most of the moon's exosphere comes from the solar wind, which is a thin stream of electrically conducting gas blown from the surface of the sun into space at around a million miles per hour.
Most of the solar wind is hydrogen and helium but it contains many other elements in small quantities,
including neon. All these elements impact the moon, but only helium, neon, and argon are volatile enough to be returned back to space.
While most of the lunar exosphere comes from the solar wind, the readings showed that some gas comes from lunar rocks.
Tao likens the process to techniques used to discover exoplanets--new planets beyond our solar system.
too much sun can be worse than too little. The fact that chlorophyll absorption spectrum makes things surprisingly green reflects the compromises inherent in being able to capture every photon possible
That project takes 173,000 mirrors and focuses the sunlight to the plant solar receiver steam generator,
and upticks in renewable electricity generation there using solar wind and hydropower could have contributed to the reversal.
The photoanode uses sunlight to oxidize water molecules, generating protons and electrons as well as oxygen gas.
converts 10 percent of the energy in sunlight into stored energy in the chemical fuel,
and can operate for more than 40 hours continuously. ur work shows that it is indeed possible to produce fuels from sunlight safely and efficiently in an integrated system with inexpensive components,
ripples in the fabric of space-time. ee been thinking a lot about using these methods to detect gravitational waves from pulsarsncredibly dense stars that are the mass of our sun compressed into a 10 km radius and spin at 10 to 100 times a second,
theye not as flexible as their natural cousins. yanobacteria have adapted to live in ponds that are drenched by sun,
the inability to work in bright light, especially sunlight. The key is to gather only the bits of light the camera actually needs.
wee sending a lot more energy to that spot than the energy sent by the sun, he explains.
In polar regions of the moon, where the sun is always at a low angle, a vision system that is able to eliminate the glare is essential. ow-power sensing is very important,
Among other things, the sunlight that pours through them can raise the temperature in the office,
when exposed to strong sunlight and it's powered by that sunlight, too. The facade was developed via a collaboration between Fraunhofer and the Weissensee School of art in Berlin.
Based on a concept by design student Bára Finnsdottir, it's composed of an array of circular flower-like components.
that heat comes from direct sunlight. When that light heats the wires, they respond by reverting to a shape that draws the fabric discs closed,
Once the sun goes down or clouds roll in, however, the wires return to their previous shape
trackers can be used to allow the panels to follow the sun throughout daylight hours. The advantages of trackers are dramatic,
presenting a basic question--should the utility go with a fixed mounted PV system or a system that tracks the sun during the day?
which would diffuse the sunlight. That raises an issue with a fixed system versus one with trackers--in cloudy areas
the benefits of trackers can be diminished due to the sunlight being scattered from clouds. Source: PV Watts Trackers will typically add additional upfront costs of 2 percent to 10 percent on large utility-scale projects.
Solarcity is already selling Tesla behind-the-meter batteries with its solar systems, and has been testing their ability to work in concert as an aggregated grid resource.
or biofuels when exposed to the sun. Oxman said, uch functions will in the near future augment the wearer by scanning our skins,
#Concept the translucent battery, that charging from the sun A group of Japanese engineers at the University of Kogakuin developed translucent lithium-ion battery that can be recharged in the sun. Solar rays are converted into electricity, the fact
When the battery fall into the sun rays, it becomes slightly tinted: light transmission drops to 30%.
They will not only automatically obscure the sunlight, but also store energy for the consumer devices r
using just the power of the sun. Chemists at the University of Reading say a new catalyst,
which mimics the way plants absorb energy from the sun, could make the energy-sapping job of splitting water into hydrogen and oxygen relatively easy.
scientists use a photocatalyst-a material that absorbs light from the sun and uses it to excite electrons to higher energy levels.
which allow plants to convert sunlight into chemical energy, "said Grau-Crespo.""The challenge now is to incorporate these wonderful natural catalysts into materials capable of doing the specific chemical job we need.
sunlight and insects can ravage the texts, while storing them at temperatures that are too high
when there isn't enough sunlight. Additionally, when conditions in the container are just right, the device will automatically power down,
when he flew too close to the sun. The mythological character fell into the sea and drowned.
000 suns The latest in solar power comes to us from Swiss inventors working for Airlight Energy, Dsolar (a subsidiary of Airlight),
it tracks the sun and cools itself by pumping water through its veins like a plant.
this method entails using reflectors to concentrate the sun, as well as highly efficient photovoltaic cells (known as gallium arsenide photovoltaic cells) to convert that concentrated solar energy into electricity.
According to Gianluca Ambrosetti, Airlight's head of research, the Solar Sunflower's reflectors concentrate the sun"to about 5, 000 suns."
000 suns. To counteract this, the Sunflower makes use of a hot water cooling system invented by the project's IBM collaborators.
so this new discovery gives hope to the search for life in our solar system. Data from various probes and rovers like Curiosity and the Mars Reconnaissance Orbiter have provided researchers with evidence concluding that there is flowing water on present-day Mars. Scientists understand that Mars was once Earthlike with large
#Transparent Batteries That Charge In The Sun A group of Japanese researchers have managed to improve the design of a transparent lithium-ion battery
when exposed to sunlight without the need for a separate solar cell. The transparent battery was developed first by the researchers,
the Japanese researchers have found a way to make these transparent batteries now recharge themselves in the presence of sunlight,
but also store power as theye recharged by the sun. And as an extension of that idea,
harvesting sunlight to charge the device whenever youe outside t
#Light-Powered Contact lenses In a patent granted this month, Google shows off plans to build contact lenses that are powered by
If this voltage is generated by sunlight in a solar cell, then you could store solar energy by generating hydrogen gas.
Firstly, it produces under sun light illumination a photovoltage of almost 0. 5 volts and very high photocurrent densities of up to 38 ma/cm2;
almost all sun light reaches the photoactive chalcopyrite, leading to the observed high photocurrent density and photovoltage comparable with those of a conventional device-grade thin-film solar cell.
"More than 80%of the incident visible sunlight was converted photoelectrically by this composite system into electric current available for the hydrogen generation,
Since before Newton held a prism to a ray of sunlight and saw a spectrum of colour,
#Artificial leaf harnesses sunlight for efficient fuel production Generating and storing renewable energy, such as solar or wind power, is a key barrier to a clean energy economy.
a cost-effective method of producing fuels using only sunlight, water, and carbon dioxide, mimicking the natural process of photosynthesis in plants
The photoanode uses sunlight to oxidize water molecules, generating protons and electrons as well as oxygen gas.
converts 10 percent of the energy in sunlight into stored energy in the chemical fuel,
"Our work shows that it is indeed possible to produce fuels from sunlight safely and efficiently in an integrated system with inexpensive components,
HILLS AND POTHOLES Many of these types of flexible electronic devices will rely on thin films of organic materials that catch sunlight
the less efficiently they convert sunlight to electricity; The fix: A new transparent overlay allows light to hit the cells
Their invention shunts away the heat generated by a solar cell under sunlight and cools it in a way that allows it to convert more photons into electricity.
The material is transparent to the visible sunlight that powers solar cells, but captures and emits thermal radiation,
"Solar arrays must face the sun to function, even though that heat is detrimental to efficiency, "Fan said."
"Our thermal overlay allows sunlight to pass through, preserving or even enhancing sunlight absorption, but it also cools the cell by radiating the heat out
and improving the cell efficiency.""A cool way to improve solar efficiency In 2014, the same trio of inventors developed an ultrathin material that radiated infrared heat directly back toward space without warming the atmosphere.
when the sun is beating down. The Stanford team tested their technology on a custom-made solar absorber-a device that mimics the properties of a solar cell without producing electricity-covered with a micron-scale pattern designed to maximize the capability to dump heat
but requires the preservation of the visible spectrum of sunlight for either practical or aesthetic reasons."
The sun is an abundant and practically infinite source of energy, so researchers around the world are racing to create novel approaches to"harvest"clean energy from the sun or transfer that energy to other sources.
This week in the journal Applied Physics Letters("Metamaterial electromagnetic energy harvester with near unity efficiency"),researchers from the University of Waterloo in Canada report a novel design for electromagnetic energy harvesting based on
releasing as much energy in a few seconds as the Sun does over its 10 billion year lifetime.
& Astronomy at Stony Brook University, is one outside earths solar system at 100 light years away.
J. Rameau, Udem and C. Marois, NRC Herzberg) The finding could serve as a decoder ring for astronomers to understand how planets formed around our sun
because one of the best ways to learn how our solar system evolved is to look to younger star systems in the earlier phase of development.
which is dedicated to imaging and characterising exoplanets, planets discovered outside of earths solar system. The new planet is called 51 Eridani b. The GPI is a new astronomy instrument operated by an international collaboration headed by Bruce Macintosh, a Professor of Physics in the Kavli Institute at Stanford.
The key to the solar system? What makes 51 Eridani particularly interesting is that it also harbours dust
and the ice grains produced by collisions among asteroids and comets in the Solar system.""Metchev's team conducted a study with data from NASA's Wide-field Infrared Survey Explorer (WISE TO search for any thermal glow that such dust
"And more data from the European space agency's Herschel Space observatory reveal that 51 Eridani is surrounded also by a more distant and colder cometary belt, much like the Kuiper belt of comets beyond Neptune in the Solar system."
"The two belts the asteroid and the cometary belt around 51 Eridani fall on either side of the newly discovered planet 51 Eridani b."The overall structure bears striking resemblance to our own Solar system,
therefore seeing what the Solar system resembled at a very young age, around the time when the Earth was still forming."
a little more massive than our sun a perfect target,"says James Graham, a professor at UC Berkeley and Project Scientist for GPI.
and spotted 51 Eridani b orbiting a little farther away from its parent star than Saturn does from the sun
Previous Jupiter-like exoplanets have shown only faint traces of methane, far different from the heavy methane atmospheres of the gas giants in our solar system.
"In the atmospheres of the cold giant planets of our solar system carbon is found as methane,
"Since before Newton held a prism to a ray of sunlight and saw a spectrum of colour,
Unlike conventional solar cells that directly absorb sunlight and convert it into electricity, an LSC absorbs the light on a plate embedded with highly efficient light-emitters called lumophores that then re-emit the absorbed light at longer wavelengths, a process known as the Stokes shift.
#Highest efficiency hydrogen production under natural sunlight Researchers at the University of Tokyo and Miyazaki University have produced hydrogen under natural sunlight at an energy conversion efficiency of 24.4,
and it is possible to produce hydrogen under sunlight at a high efficiency with an appropriate system design for each installation,
but if operated in countries with high solar irradiance it would be possible to generate solar electricity at low cost owing to the high energy conversion efficiency.
Jingchuan Sun, an EM expert in Li's lab, was essential to the success of the work.
"Sun said.""Our lab has expertise and a decade of experience using electron microscopy to study DNA replication,
A Layered Manganese Oxide To Capture Sunlight for Water-Splitting Catalysis"),Assistant professor of Chemical engineering Jose L. Mendoza-Cortes details how this new material efficiently captures sunlight and then,
and it could turn rain water into energy with the help of the sun."But, unlike many other energy sources,
and you do need not a large amount to capture enough sunlight to carry out fuel generation
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