your eye a Super CAMERA??

Do you know that your eye is 576 mega pixels........
Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be
90 degrees * 60 arc-minutes/ degree * 1/0.3* 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).
At any one moment, you actu...ally do not perceive that many pixels, but your eye moves around the scene to see all the detailyou want. But the human eye really sees a larger field of view, close to 180 degrees. Let's be conservative and use 120 degrees for the field of view. Then we would see
120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.
The full angle of human vision would requireeven more megapixels. This kind of image detail requires A large format camera to record.See More

Earth appears to be shrouded by a ring of Anti- Protons

The Earth appears to be shrouded by a ring of Anti- Protons that have become trapped in the Earths’ magnetic field.
Charged particles called cosmic rays constantly rain in from space, creating a spray of new particles – including antiparticles – when they collide with particles in the atmosphere.
Many of these become trapped inside the Van Allen radiation belts, two doughnut-shaped zones around ...the planet where charged particles spiral around the Earth’s magnetic field lines.
Alessandro Bruno, another team member from Bari, says antimatter in the Earth’s radiation belts might one day be useful for fuelling spacecraft.

Future rockets could be powered by the reaction between matter and antimatter, a reaction that produces energy even more efficiently than nuclear fusion in the sun’s core. “This is the most abundant source of antiprotons near the Earth,” says Bruno. “Who knows, one day a spacecraft could launch then refuel in the inner radiation belt before travelling further.”

Science what is it????

Some people find science boring but science is anything but boring. You know why? It is because science has so many different aspects and so many different fields that you simply have to find something that interests you and stimulates your hunger for knowledge.

Science is always moving forward and with each new day we have the chance to witness new fascinating discoveries that sometimes seem to... be out of this world. The constant scientific progress is what drives our society and our civilization forward. Who would have imagined few centuries years ago that one day humans could fly into the space and walk on the surface of the Moon?

Science makes fantasy come true. Only science is able to transform our imagination into reality.

Science is not only the result of our imagination, it is really the combination of imagination and hard work.

The majority of scientific discoveries were the result of countless previous experiments where scientists had to learn from past mistakes in order to move forward.

Some scientific discoveries were also the result of pure luck where scientists were hoping to find something completely else and were latest surprised in finding major accidental discovery.

Science really has something to offer for everyone. Just because you dislike one field doesn't mean you'll find entire science boring. We have been blessed with brain and curiosity so it's perfectly natural to love science. Don't go against the nature

Meet Silicene, Single-Atom-Thick Sheets of Silicon That Could Supersede Graphene

Meet Silicene, Single-Atom-Thick Sheets of Silicon That Could Supersede Graphene


Silicon Atom Like carbon, silicon has four valence electrons, and the two elements share some similarities.
Silicene could be the material of the future. Or at least the material of the nearfuture, until graphene-based semiconductors become more efficient.
... A team of European researchers claims to be the first to synthesize silicene, a new allotrope of element No. 14 that forms two-dimensional single-atom sheets rather than three-dimensional crystals. This could be good news for the semiconductor industry.
While graphene is the most conductive material in existence, its lack of a band gap can actually be a hindrance when you’re trying to build an effective transistor. IBM has shown it’s possible to build graphene transistors , but it may be a while before this type of research percolates from the lab to the factory. Silicene’s one-atom-thick structure could be even more effective in building faster transistors and computers, partly becauseof how its electrons are arranged.
A silicene sheet has a buckled honeycomb structure, seen below, in which a few atoms are arranged above and below the main sheet. Electrons in these locations have distinct energies, and when a voltage is applied, they can jump across the gap, allowing silicene to serve as an on-off transistor. Silicene sheets would thereby bring silicon’s superb on-off abilities to the smallest scales possible, while remaining compatible with existing fabrication processes and existing electronics. That’s something graphene can’t do, at least not yet.
Silicene: Wikipedia A new paper describes how a team led by Guy Le Lay at Aix-Marseille University in France created silicene sheets on a silver substrate. Just as predicted, the material had a buckled honeycomb structure, which the researchers verified using scanning tunneling microscopy and angular-resolved photoemission spectroscopy.
At least four research groups have claimed to grow silicene on silver substrates before this, but the team led by Le Ley claim to be the first to have clear, microscopic proof. The next step is to grow silicene on insulators to further examine its properties.

More stuff that happen differently in space!

More stuff that happen differently in space!

☞ Bacteria grow more…and grow more deadly.
Thirty years of experiments have shown that bacterial colonies grow much faster inspace. Astro-E. coli colonies, for example, grow almost twice as fast as their Earth-bound counterparts. Furthermore, some bacteria grow deadlier. A controlled experiment in 2007 testing salmonella growth on the space shuttle A t...lantis showed that the space environment changed the expression of 167 of the bacteria's genes. Studies performed after the flight found that these genetic tweaks made the salmonella almost three times more likely to cause disease in mice than control bacteria grown on Earth.
There are several hypotheses as to why bacteria thrive in weightlessness. They may simply have more room to grow than they do on Earth, where they tend to clumptogether at the bottom of petri dishes . As for the changes in gene expression in salmonella, scientists think they may resultfrom a stress response in a protein called Hfq, which plays a role in controlling gene expression. Microgravity imposes mechanical stresses on bacterial cells by changing the way liquids move over their surfaces. Hfq responds by entering a type of "survival mode" in which it makes the cells more virulent.
By learning how salmonella responds to stress in space, scientists hope to learn how it might handle stressful situations on Earth. Hfq may undergo a similar stress response, for example, when salmonella is under attack by a person's immune system.

ARTIFICIAL LEAF TO PRODUCE FUEL FROM SUNLIGHT...?

 

ARTIFICIAL LEAF TO PRODUCE FUEL FROM SUNLIGHT...?

Two teams of researchers in the US have taken important steps towards the creation of commercially viable"artificial leaf"– a hypothetical device that can turn sunlight into electrical energy or fuel by mimicking some aspects of photosynthesis.
Earlier this year, the chemist Daniel Noceraat the Massachusetts Institute of Technology (MIT) announced... artificial-leaf prototypes.
Now, working with two different teams of researchers, he has published two papers on different devices that represent progress towards effective and commercially viable versions of the artificial leaf.
Both teams made their devices from siliconwafers that are coated with catalytic metals and protective layers.
The prototype solar cells are about the size of a credit card and can capture
sunlight and then use the energy to split water into its constituent oxygen and hydrogen.
This is different to conventional photovoltaic cells, which convert light directly into electricity.
With these new devices, the ultimate plan is to recombine the two gases in an integrated fuel cell, thus converting the chemical energy to electrical energy.
Producing fuel rather than electricity has the advantage that the fuel can be easily stored until it is needed.
Both artificial leaves use a silicon n–p junction: a bilayer of n-type and p- type silicon. An incident photon is absorbed to create an electron–hole pair in the semiconductor. The electrons migrate to the n-side and the holes to the p-side.
The holes then drive the splitting of water in a process mediated by the outermost layer of the cell, which is a photocatalyst.

Bullets

Ever wonder why bullets have pointed end!??.~
the pointed end of the bullet reduces drag due to less frontal area.thus in addition to piercing,it reduces drag and thus increase the range of the gun.

Working in a small company

>Working in a small company<

Smaller companies are more likely to offer flexible hours and vacation policies. A smaller company may be a growing company. It can be exciting to ride a company as it grows, to watch and participate in the formation of its culture and lingo. Smaller companies also tend to suffer less from bothersome bureaucracies, so your ideas have a better chance of immediate imple...mentation. Small companies also tend to pay less and can’t offer the benefits of a larger firm. And especially in these consolidation-crazy times, they’re somewhat more susceptible to buy-outs and bankruptcy than a big, established operation. Fortune 500 companies, on the other hand, can usually afford higher salaries than smaller places can. They also offer more comprehensive benefits, and may offer a wider variety of potential places to live. In the interview process, employees at small companies understand that they don’t have the name recognition of bigger places and won’t expect you to know as much about them. This is why it’s an especially good idea when interviewing with a smaller place, to find out what they do and who they are.

wearing higher heels

More women are wearing higher heels, and for longer, and experts are increasingly concerned about the long-term damage they are doing to their feet. Recent researchsuggests that up to a third of women suffer permanent problems as a result of their prolonged wearing of 'killer heels', ranging from hammer toes and bunions to irreversible damage to leg tendons. Many of the problems - which can occur simultaneously - are caused by the increased pressure high heels put on the ball of the foot; the higher the heel, the greater the pressure. The knee and back canalso be affected..!

NASA

EcoAlert: ISS Camera to Provide World's Real-Time Climate Data
NASA announced plans last week to send a new telescopic camera to the InternationalSpace Station to give developing countries critical new environmental data on forest fires, floods, volcanoes, droughts, hurricanes and landslides in Central America, Africa and Asia.
ISERV is NASA's abbreviation for the new camera designed and built at ...Marshall Space Flight Center to record those changes. Once it's aboard the station, the camera will obtain near-real-time data, NASA says. It will be able to "see" 90 percent of the Earth's land mass and 95 percent of its populated areas, according to lead scientist Burgess Howell at NASA Huntsville. SERVIR can show officials the scope of a natural event and its effect on regional resources such as drinking water.