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Células solares en 3D duplican la producción energética de los paneles


Via Scoop.ithuman being in – perfección

Un equipo de ingenieros del MIT (Massachusetts Institute of Technology), en Estados Unidos, ha realizado una importante innovación en el terreno de la energía solar, con el diseño de nuevas células solares fotovoltaicas con configuraciones…

Una nueva etapa en el desarrollo de la energía solar podría ser protagonizada por el aprovechamiento de células solares fotovoltaicas con diseño 3D, una innovación que permite obtener más del doble de la producción energética conseguida con los dispositivos planos utilizados en la actualidad. El avance ha sido realizado por un grupo de ingenieros e investigadores del MIT. Sigue leyendo

“I’m Feeling Lucky” button launched last year | Improving video awesomeness with one click


http://youtube-global.blogspot.com.ar/

Whether you’re perfecting your double backflip at the park, capturing a flash mob on your phone, or enjoying singing in a subway, it’s not easy to get your video quality perfect. Sometimes videos suffer from symptoms like “shaky-camera-itis” or “augmented-darkness-levels” that keep viewers from seeing just how awesome your video really is. We made a big step last year with the YouTube Video Editor, and now we’re adding a feature that does the work of curing these symptoms for you.

If you uploada video that’s shaky or dark, we’ll automatically offer to fix it for you, creating an updated version of your video on YouTube.When you upload a video that could use a fixup, you’ll see a notification bar on the Upload page and in your Video Manager. Click the button to fix it, and you’ll see a side by side preview to decide if you want to accept the edits.

Select “Okay” if you’d like us to update your video to the preview version (you can always undo this later). Even if you’re uploading a video from your mobile device, the Video Manager on the desktop will give you a notice if this video can be cured as well. Here’s an overview: Sigue leyendo

Burning Ice: The Next Energy Boom?


(Gtranquillity/Shutterstock)
Burning Ice


miller-mccune.com
Methane hydrates present a potential lifeline to resource-poor nations like Japan, which already imports more than 90 percent of its fossil fuels.
By 

Oil companies and governments around the world are examining how to uncage huge amounts of methane gas locked up in undersea ice.  Set a lighter to an icy block ofmethane hydrate, a naturally frozen combo of methane gas and water, and flames spew forth at random. However unlikely this fluke of nature may appear — burning ice — it could hold the keys to a vast wealth of untapped, clean-burning methane gas thought to exist deep beneath the outer margins of most continental shelves.

Its contribution may be peripheral to the immediate needs of Western Europe and North America, currently drowning in cheap natural gas, but it present a potential lifeline to resource-poor nations like Japan, which already imports more than 90 percent of its fossil fuels. Although successfully created in the laboratory as early as the 1800s, gas hydrates were only discovered in nature in western Siberian permafrost in the late 1960s. And their structural vagaries, capable of trapping this frozen methane in molecular, lattice cages, are only now being fully appreciated under natural conditions. It is known, however, that these methane hydrates typically form only at low temperatures and under high pressure in rock sediments, usually hundreds of feet or more below the ocean surface. Sigue leyendo

The Benefits of Retreating


Retreat or withdrawal brings the idea of weakness and defeat to mind. On the surface, it looks as if you are running away because you cannot handle a situation. But at times, you may have to make a planned retreat when faced with overwhelming odds to stage a comeback. A well-planned retreat is a prudent move with benefits that can help you on a personal and a professional level. Read on to find out what the benefits are.

Maintains Relationships

Relationships define our lives. Whether it is on a personal or professional level, most of us have to interact with people. And as you already know, interacting with people is not easy. You have to give and take. In the course of any relationship, you will face conflicts from time to time. Conflicts have the potential to harm a relationship if you do not manage it well. When you find the odds against you, it might be better to retreat to maintain the relationship.

For example, if your boss had a bad day, it would not be wise to ask him for a raise even if you deserve it. On the one hand, he would not be receptive to the idea. On the other hand, you could piss him off and blow your chances in the process. Retreat if the moment is not right to press your case. In doing so, you avoid a needless clash that could cause problems in a relationship. Sigue leyendo

How to Become an Eco Web Designer


By: Alexander Dawson | //onextrapixel.com

Whether you believe in global warming or otherwise, the earth does still have limited resources. With an ever increasing population this means that we should try and reduce our consumption of fuel and wastage whenever possible. While I’m not going to start a hippy campaign and say that we should all go live in a world without computers (that would drive me to the point of insanity) I think that as web professionals, there are small things we can do to pass on the savings to our customers.

This article aims to highlight some of those potential energy and resource saving tweaks that we can make to ensure that if our visitors wish to reduce the amount of resources they expend, the process will be as painless and unobtrusive as possible. While this list is certainly not extensive, hopefully it may give you the opportunity to think about the process you use to build a website and how to best meet the ecological needs of your visitors as they are of an ever increasing level of importance.

Save Energy
Image credit: emitea

Figure 1: Recognising ways to save energy will make you an eco designer.

Note: Everything listed has some scientific credibility behind the theory, but the amount of savings that can be made depend on various factors. My advice is that if doing small things can help visitors reduce their electricity bills or resource costs without incurring extra ourselves, it’s worth the effort!

Blackle is The New White

While this item has a lot of controversy surrounding it, there is some clear merit associated with the practice therefore it’s worth breaking apart the facts from the fiction. A few years ago a site called Blackle appeared and made a name for itself due to its simple idea that by using a black background, you could reduce the amount of energy expended by your display. The theory behind this was that it requires more energy to illuminate a white pixel than a black (non active) one, sounds easy right?

While this item has a lot of controversy surrounding it, there is some clear merit associated with the practice therefore it’s worth breaking apart the facts from the fiction. A few years ago a site called Blackle appeared and made a name for itself due to its simple idea that by using a black background, you could reduce the amount of energy expended by your display. The theory behind this was that it requires more energy to illuminate a white pixel than a black (non active) one, sounds easy right?

Blackle

Figure 2: Blackle conceptualises a method to help CRT displays reduce their energy consumption.

Well the truth is that the claims by promoters of the theory itself based on a scientific study were rather exaggerated. You see, with the advancement of technologies and the progression from CRT displays (which a real difference can be measured) to LCD’s (which require near enough the same amount of energy to produce black as white), much of the idea behind such a noble campaign has been debunked. So why is this item included in the list? For one reason, backwards compatibility!

As web professionals we are used to the fact that people may be browsing our sites using clunky old pieces of technology, from elderly browsers to a machine that would have been in existence longer than your children. It’s still a fact today that many people still regularly make use of CRT displays as they visit websites. Therefore it may be worth the consideration of giving your users an alternative stylesheet which they can pick based on black to pass on potential energy savings to those devices.

Contrast is King Sigue leyendo

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