New Technology Can Improve The Connections Of Public WiFi By 700%

Researchers at North Carolina State University have reached a new software that can solve the problem of crowded Internet connections in the public places.

The new software can be added to existing network setups, the researchers said. Existing systems work by transferring data through a single channel. But they can become clogged when too many requests are sent by users all attempting to access the WiFi network at once.

They can attempt to prioritise data to be sent back to users – which are needed in order to display services such as websites – but that, in turn, slows down new requests by other users, often meaning that pages become slow or even impossible to load.

But the programme developed by the researchers at North Carolina State University solves that by monitoring the amount of traffic passing through a WiFi connection and sorting and prioritising it where a backlog is detected. In doing so, the software – called WiFox – smooths the flow back and forth of traffic, speeding up the connection for more people.

The research team said they used a real WiFi system capable of handling 45 users to test the system. They found that the more users on it, the more the new program improved data throughput performance. Improvements ranged from 400 per cent with approximately 25 users to 700 per cent when there were around 45 users.

This translates to the WiFi system being able to respond to user requests an average of four times faster than a WiFi network that does not use WiFox.

Their paper, “WiFox: Scaling WiFi Performance for Large Audience Environments,” will be presented at a conference in Nice on December 10. The paper was co-authored by Jeongki Min, a Ph.D. student at NC State, and Dr. Injong Rhee, a professor of computer science at NC State. The research was supported by the National Science Foundation.

A Free Floating Planet Is Discovered

The new discovered planet does not evolve around any sun, so it just wonder through space without exposing to Gravaity. The planet size is huge as it reaches more than four times of Jupiter. The astronomers that discovered the planet gave it a code name CFBDSIR2149.

Astronomers have long theorised about the possibility of free-floating planets that are not trapped by the gravitational attraction of a nearby star but this is the first time they have been able to confirm one’s existence.

English: The , located at the in Hawai'i.
English: The , located at the in Hawai’i. (Photo credit: Wikipedia)

Detailed calculations carried by at team of Canadian and French scientists show that the planet is comparatively young, between 50 and 120 million years old, with a surface temperature of 400C. This, combined with its size, rules out the possibility of it being a larger “brown dwarf” star, astronomers said.

A joint investigation between astronomers working on the Canada-France-Hawaii Telescope and the Very Large Telescope in Chile operated by the European Southern Observatory led to an accurate estimate of the planet’s age, a key fact that ruled out the possibility of it being a brown dwarf.

The free-floating planet appears to be part of larger grouping of about 30 young stars, all with a similar composition, that are moving through space together. This helped the scientists to pinpoint the planet’s age.

AEG Is The Possible Building Blocks Of Earth Primary Genetic Material

Scientists from USA and Sweden reached for a new discovery proving that the AEG is probely the building block of the primary genetic material even prior to the DNA. The team reached that AEG in cyanobacteria which are one of the most primitive organisms on earth.

Cyanobacteria
Cyanobacteria (Photo credit: Argonne National Laboratory)

The answer may be AEG, a small molecule that when linked into chains forms a hypothetical backbone for peptide nucleic acids, which have been hypothesized as the first genetic molecules. Synthetic AEG has been studied by the pharmaceutical industry as a possible gene silencer to stop or slow certain genetic diseases. The only problem with the theory is that up to now, AEG has been unknown in nature.

A team of scientists from the United States and Sweden announced that they have discovered AEG within cyanobacteria which are believed to be some of the most primitive organisms on Earth. Cyanobacteria sometimes appear as mats or scums on the surface of reservoirs and lakes during hot summer months. Their tolerance for extreme habitats is remarkable, ranging from the hot springs of Yellowstone to the tundra of the Arctic.

To determine how widespread AEG production is among cyanobacteria, the scientists analyzed pristine cyanobacterial cultures from the Pasteur Culture Collection of Paris, France. They also collected samples of cyanobacteria from Guam, Japan, Qatar, as well as in the Gobi desert of Mongolia, the latter sample being collected by famed Wyoming naturalist Derek Craighead. All were found to produce AEG.
Professor Leopold Ilag and his student Liying Jiang at Stockholm University’s Department of Analytical Chemistry analyzed the same samples and came up with identical results: cyanobacteria produce AEG. While the analysis is certain, its significance for studies of the earliest forms of life on Earth remains unclear.

 

Rosemary A Cure For Memory Loss

The scientific name of Rosemary is Rosmarinus officinalis. The Rosemary plant is a Mediterranean region plant, it is an evergreen plant with different colors of flowers that vary between blue, purple, pink or white.

There are different uses of Rosemary, it is used in cooking as a herbal  It is also used for decorations which started in the middle ages as a sprig that brides wear. But we can say that the most important use of the Rosemary plant are the medical uses.

The Greeks were the first to discover the importance of Rosemary in helping improve the memory for the old people, which was proven by a new study were it was proven that small amounts of the Rosemary if taken regularly it improves the memory while the high dose can give exactly the opposite “impair memory”.

Rosemary (given name)
Rosemary (given name) (Photo credit: Wikipedia)

Rosemary is one of the most popular herbs in world history for a number of reasons. It has long been used for cooking, during religious ceremonies, and as herbal remedies. Ancient Greeks also used it to help stimulate the brain and improve memory. Researchers recently have found that rosemary does in fact help the memory, often within just a few short hours. A study was recently done with a group of 28 older adults. What the study found was that at low doses (750 mg), rosemary showed a significant benefit. However, when a higher dose was administered (6,000 mg), there seemed to be an impairment of memory. This showed the scientists that low doses over a period of time were the best option. One reason that rosemary is so great for our brains is that it contains a number of unique bioactive compounds. One of these includes CA, or carnosic acid, which has been shown to protect the brain from strokes and degeneration. It has also been shown that inhaling the oil can help boost memory, mood, and concentration. So what do we get from this study? Eating rosemary in small doses on a regular basis can help protect your mind, improve your memory and mood, and help you concentrate better. Overall, you will be a more productive person.

Glass window that can produce electricity

Solar cells on a Photovoltaic panel at the Nat...

New Energy researchers have developed a working prototype in the development of new methods and technologies for applying New Energy’s electricity-generating the world’s first glass window that can produce electricity.

A glass window was generated  using the world’s smallest working organic solar cells.

In contrast to the conventional solar systems, the solar cells developed by New Energy Technologies can produce power from both natural and artificial sources of light. These solar cells show a 10 times better performance than the solar and thin-film technologies used today.

Spray-on Liquid Glass that Can Cover Any Surface

The main ingredient used in the liquid glass is silicon dioxide that is obtained from quartz sand.  Water or Ethanol can be added according to the type of surface that needs to be covered.  The spray produces a coating that is just 100nm thick. This coating can be easily cleaned using water or a damp cloth.

It is flexible and breathable. The invention was tested in plants, scientists found that the plants could resist the fungal diseases much more, and the seeds grew faster.

The liquid glass can protect any type of surface from damages caused by water, UV radiation, dirt, heat, and bacterial infections.  The invention could be also used on clothing, because it cannot be seen by the naked eye, thus clothes could become stain resistant. Due to its unique properties, the liquid glass can be used to cover bathrooms, tiles, sinks and many other surfaces in the home. According to the researchers, the spay-on glass can last for a year.

Source: SolarWindow – glass window that can generate electricity

Better Vision for Blind and Poor Vision Sighted People

Electric Eye (video)
Image via Wikipedia
Electric Eye 

It gives the possibility of providing partial eyesight to blind people. The main component of this device is a chip encased in a titanium cover. The titanium prevents water from damaging the chip. The whole device comes in the form of eye glasses fitted with a camera. This camera is used in the transmission of captured images to the titanium covered chip. As the chip receives transmission from camera.
TYR corrective Optical Performance Goggle 

Many people with poor vision face the problem of swimming in a pool without glasses or contact lenses. The TYR Corrective Optical Performance Goggle is designed for all swimmers, who want to feel at ease, enjoy swimming and seeing everything clearly.
The goggles feature wide-angle optical grade polycarbonate lens that allows having wide vision. Polycarbonate is one of the best choices for sport lenses that is highly impact-resistant. Besides, they are thin and light and offer UV protection. It offers a wide variety of sizes. The goggles have comfortable fit that can be easily adjusted to everyone.
Electronic Eyeglasses to substitute bifocals 

Those lenses are for people, who need eyeglasses with two different strengths. This effect is obtained with bifocals, eye wear with two lenses for near vision and far vision.
The lenses are covered with liquid crystal that changes their reflective index when the electrical charge pass through it. This technology allows changing focal length according to the direction a person is looking at. This happens almost immediately as you press the button manually at the sides of the eyeglasses.
It also adjust focal distance automatically. The eyeglasses have a wider range of settings than bifocal eyeglasses, including far, near and in-between.
Commonly used bifocals are meant for people who need correction to see clearly at different distances. Those lenses overcome the problems of  bifocals such as  headache and dizziness. With new eyeglasses those problems disappear.

Plants Can Kill Too! Some Plants Save lives while Others are Deadly!

Rosary Pea The most dangerous plants on earth

The rosary pea  may sound sweet and downright pious, but it’s actually one of the most dangerous plants on earth. Its seeds contain a particular lectin known as abrin; if chewed and swallowed, death will follow shortly. The seeds are easily identified with their distinctive bright red jacket and single black dot (almost like a reverse Black Widow spider). Abrin, which does its damage by inactivating ribosomes, is one of the most fatal toxins on earth. After the  vomiting, fever, nausea, drooling and G.I. dysfunction but before the bizarre hyperexcitability, edema and fatally convulsive seizures, renal tubular degeneration, bladder and retinal hemorrhage and widespread internal lesions typically develop.

Monkshood

The nickname for monkshood is actually “wolfsbane”. That’s owing to its once common use by farmers as a very effective wolf extermination tool. (Not to be left out, fowl are also fatally affected by the related hensbane.) The monkshood has the distinction of evidently being the bane of many creatures: its nicknames include womensbane and leopard’s bane, though it is also known as blue rocket and devil’s helmet. It is technically part of the aconitum  genus, of which there are more than 250 species. The wolfsbane used to be a popular werewolf detection tool, by the way. (Status was determined by holding the flower near the alleged’s chin; a yellow-tinged shadow on the skin was thought to be confirmation.)

Bushman’s poison

The aptly-named Bushman’s poison  has famously been used by the Khoisan of South Africa to poison the tips of their arrows. Though the plant produces pleasantly scented flowers and a tasty plum-like berry, the milky sap can be fatal. The leaves, however, have medicinal properties. Bushman’s poison is also known as the winter sweet.

Angel’s trumpet

What could be sweeter than the sound of an angel’s trumpet? Perhaps the moaning agony of a trip that won’t end. Related to petunias, tomatoes and potatoes, the angel’s trumpet (datura stramonium) is a highly effective hallucinogen, but should not be consumed for recreational purposes as it can also be lethal. According to wikipedia: “The active ingredients are atropine, hyoscyamine and scopolamine which are classified as deliriants, or anticholinergics. Due to the elevated risk of overdose  in uninformed users, many hospitalizations, and some deaths, are reported from recreational use.” This common plant also goes by many other names, including jimson weed, stink weed, loco weed, and devil’s snare. One 18-year-old who was house-sitting alone for his uncle recounts how he decided to prepare some angel’s trumpet tea  in curiosity and almost died (a friend burst in on him convulsing on the bathroom floor and the authorities assumed he was on an acid trip).

Water Hemlock

The poison hemlock famously drunk by Socrates is deadly, but the water hemlock is just as fatal. According to the USDA, water hemlock or poison parsnip is “the most violently toxic plant in North America”. The flowers and stems are safe, but the stalky roots contain chambers that are full of a deadly sap containing the convulsant cicutoxin. Grand mal seizures are followed by a quick death if even a tiny amount is consumed.

Nightshade

Also known as the devil’s cherry, black cherry, great morel and belladonna, the nightshade  is toxic from tip to top. Containing atropine, a deadly alkaloid, those who ingest even a small amount of the plant will soon notice they have lost their voice. Respiratory trouble and convulsions follow. The plant is problematic because its cherries are so sweet and children are frequently attracted to the wild fruit. Strangely, horses, birds, sheep, goats and pigs seem to be immune to the effects of nightshade. Nightshade poisoning is treatable with an emetic if treatment is sought swiftly. Plutarch spoke of armies being wiped out by nightshade, and legend has it that Macbeth’s soldiers poisoned the invading Danes with wine made from the sweet fruit.

Rhododendron

The toxic rhododendron, a stalky tree-like evergreen shrub with large, brilliant blooms, is famously seen throughout much of the Pacific Northwest and is the state flower of Washington. Its relative, the popular garden shrub azalea, is also poisonous. Both plants contain andromedatoxin, which can cause severe pain, lethargy, depression, vomiting and nausea, progressive paralysis, coma and eventual death. All parts are deadly.

Oleander

The oleander is the most deadly plant in the world. It is also tremendously popular as a decorative shrub. Just one leaf can kill an adult, and fatal poisonings have resulted from minimal exposure to the twigs, blooms and berries. The plant contains numerous toxins, including nerioside, oleandroside, saponins, and cardiac glycosides. Though native to parts of the Mediterranean and Asia, it is now widely cultivated throughout the world. Fatalities among horses and other livestock are common. Once ingested, oleander goes to work simultaneously on the nervous system, the cardiovascular system, and the digestive tract.

Moonseed

A otherworldly name and a plant with often fatal effects. The seeds of this Eastern North American drupe (stone fruit) are extremely toxic to humans, although birds can eat them. Moonseeds first cause paralysis but are fatal in larger doses and/or if treatment is not sought immediately.

Daphne

This plant, also called the spurge laurel, is a favorite ornamental shrub in Europe. This drupe-producing evergreen with waxy, attractive foliage and gorgeously fragrant blooms is also highly toxic. Consumption of the leaves or red or yellow fruits will first cause nausea and violent vomiting, followed by internal bleeding, coma and death. The daphne plant is rich in the toxin mezerein.

Castor Bean

Castor oil – for anyone unlucky enough to have been force spoon-fed this healthy yet disgusting fluid as a child, you may be surprised to learn that an ingredient in the castor bean  just happens to be the deadliest plant poison on earth. Literally. Just one tiny castor bean is enough to kill an adult within a few minutes. Castor oil is made safe (but not palatable) with the removable of the lethal compound known as ricin. Amazingly, castor bean plants are grown for decorative purpose all over the place, particularly in California.

You don’t wanna mess with plants, do you?

To read more about that issue, please visit the following link:

WebEcoist  Web Site

Sensational, educational and inspirational reference to (webecoist web site)

Solar And Wind Power Generators

Everyday, Solar energy and Wind Energy become more necessary to keep our environment clean, so researches all around the world are being done all around the clock.

Some inventions had been already established, other are still just researches.

We already have three generations of solar cells
The first generation solar cells were large, silicon-based are common used in the market. The second generation cells are cheaper than the first generation but have lower efficiencies. The third generation solar cells contains a wide range of potential solar innovations including polymer solar cells, nanocrystalline cells, and dye-sensitized solar cells.

Solar  Power Generators

Solar power is the conversion of solar energy into a useful form of energy.

The solar thermal power industry is growing rapidly. There are several Solar Stations in the world especially  in USA, Spain. In developing countries, Egypt, Mexico, and Morocco, the World Bank projects for integrated solar thermal/combined-cycle gas-turbine power plants in have been approved.

 

Wind Power Generators

Wind power is the conversion of wind energy into a useful form of energy.

Such as using wind turbines to make electricity, wind mills for mechanical power, wind pumps for pumping water or drainage, or sails to propel ships.
Several countries have achieved relatively high levels of wind power penetration such Denmark, Portugal, Spain,  Republic of Ireland, Germany and other 80 countries around the world are using wind power on a commercial basis.

There are two kinds of wind power farms onshore and offshore. The onshore wind farms take advantage of the strong winds flying over the ocean, so the offshore are more effective than land wind farms.

The previous inventions are already used but the following inventions are under construction.

Flodesign’s “jet engine”-shaped wind turbine

It is three to four times more efficient than the usual turbines. Flodesign’s wind turbine design is made more simple and small. Its blades can handle high wind velocities, and the density of the wind farm can be much higher. You only need one truck to carry all of its components to the building site.

Futuristic Tornado Tower Uses Wind Power
A Tornado Tower is one of the inventions that are bringing green tech to a whole new level with its rotating facade that produces power from high-altitude winds.

The following projects are still researches that are waiting to go.

Wind lens that triples the power of wind turbines
A group of researchers led by Kyushu University professor Yuji Ohya has recently unveiled its latest invention called Wind Lens, a structure that resembles a honeycomb. The structure is meant to increase the amount of wind energy generated by offshore turbines.

Spherical Generator that produces  solar and wind power
Arttu-Matti Immonen is an industrial designer who came up with the idea of combining wind and solar energy in one device, thus considerably increasing energy output. He managed to design a generator called Aard.

Nano Technology

Carbon nanotubesNanotechnology may be able to create many new materials and devices with several applications in energy production, medicine,  organic materials and electronics.

Recently there has been many applications using nanotechnology also known as nanotech.

Carbon nanotubes, graphene and their compounds presents electrical properties for organic materials, and electronic applications such as photovoltaics, sensors, semiconductor devices, displays, conductors, smart textiles and energy conversion devices (e.g., fuel cells, harvesters and batteries).

Applications of Carbon Nanotubes and Graphene for electronics applications

Depending on their chemical structure, carbon nanotubes (CNTs) can be used as an alternative to organic or inorganic semiconductors as well as conductors. In addition to their high conductance, they can be transparent, flexible and even stretchable. Here, applications are for displays, replacing ITO; touch screens, photovoltaics and display bus bars and beyond. CNTs will be able to provide high performing devices which can ultimately be made in low cost manufacturing processes such as printing, over large areas. They have application to supercapacitors, which bridge the gap between batteries and capacitors, leveraging the energy density of batteries with the power density of capacitors and transistors.

Graphene, a cheap organic material, is to be used in some applications as a significantly cheaper printed conductor compared to silver ink. Graphene and its compounds are increasingly used to make transistors that show extremely good performance.

Nanofibers that could be used to manufacture clothing and textiles.

With their latest invention engineers will be able to make clothing that could power different portable devices. It is worth mentioning that thanks to nano-sized generators with piezoelectric properties the nanofibers have the ability to transform energy from mechanical stresses, stretches and twists into power. Thus, if used in clothing, the nanofibers could make use of body movements to power gadgets.

Nano-nose to help identify illnesses
Nanoparticles are used by U.S. researchers to ‘smell’ the scent of illnesses in fluids of the body. The researchers used nanoparticles of gold with different coatings to distinguish among different proteins and detect the illness, as reported by the New Scientist.

The ‘nano nose’ uses a system of six receptors, each one consisting of a solution with gold nano particles not larger than 2 nanometers, each one having a different coating too. Nitrogen atoms form the organic molecules which make up the coating of the nanoparticles.

A “nano-needle” with a tip about one-thousandth the size of a human hair, pokes a living cell causing it to quiver briefly. Once it is withdrawn from the cell, this ORNL nanosensor detects signs of early DNA damage that can lead to cancer.

The use of the power of water energy

Water power has been first used by inventing waterwheels that had been used to power flour mills, it worked best on larger rivers and did not work well in the faster moving and less voluminous mountain creeks and waterfalls, while water turbines used wheels with cups rather than flat panels solved this problem. Nowadays scientists made a big jump trying to benefit from the water power to generate energy.
 

Tidal Power
When tides comes into the shore, they can be trapped in reservoirs behind dams. Then when the tide drops, the water behind the dam can be let out just like in a regular hydroelectric power plant.
In order for this to work well, you need large increases in tides. An increase of at least 16 feet (4.8768 meter)  between low tide to high tide is needed. There are only a few places where this tide change occurs around the earth.
Wave Energy
Can be used in different types, the first type is by using the kinetic energy that exists in the moving waves of the ocean, the wave rises into a chamber. The rising water forces the air out of the chamber. The moving air spins a turbine which can turn a generator. When the wave goes down, air flows through the turbine and back into the chamber through doors that are normally closed. The second type uses the up and down motion of the wave to power a piston that moves up and down inside a cylinder. That piston can also turn a generator.
 

Ocean Thermal Energy Use 

s temperature differences in the ocean as it gets colder in the deep than the surface.

Power plants can be built that use this difference in temperature to make energy. A difference of at least 38 degrees Fahrenheit (3.333 Celsius) is needed between the warmer surface water and the colder deep ocean water. This type of energy source is called Ocean Thermal Energy Conversion or OTEC.

BioWave, BioStream and BioBase
BioWave and BioStream are  two technologies to generate renewable energy by tapping the motion of currents within the sea. A third technology, called BioBase, serves as a mooring system, for bioWave and bioStream.
Plant-shaped blades imitate the motion of ocean sea plants in order to absorb maximum power from sea currents. The blades lie flat on the sea bed during extreme currents. While the bioStream system has a rotating arm and flexible fin attached to a fixed pole. Passing currents drive the arm and fin and, an electrical generator.
Hydroelectricity comes by using potential energy of flowing water. At waterfalls and dams gravity pulls water downstream, where it turns the blades of a large hydroelectric turbine which turns the generator rotor, and that creates electricity. Another  smaller hydroelectric plants use straight river flow and do not involve dams. Other models that are micro-generators use ordinary streams to generate power.