Invisible.

no guardo los recibos, facturas, ni “tikets” de mis compras. es una mala costumbre, pero esta al final de la lista de conductas a modificar… al tema que me desvío.
hoy haciendo limpieza de los papelitos de la cartera, de los más grandes junto al PC y de los enormes junto a la mesita del recibidor …… he encontrado algo mágico!. en principio pasaría por un ticket del Carrefour sin más, pero al intentar averiguar de qué compra se trataba me he quedado trasparente, igual que el recibo.
nótese la ironía:
por una cara en tinta de colores … logotipo Carrefour, condiciones para el uso de cupones y publicidad de productos…… por la otra cara …nada!!, o casi nada. Solo es posible intuir que en algún momento contuvo números, letras y quizás tinta mágica. No alcanzo a entender como a podido desaparecer la información.
para ser honesto … estoy pensando lo mismo que tu ¿?¿?

........... “estos cabrones con tal de que no reclames”.

New optical materials that bend light in unusual ways could lead to much tinier transistors, microscopes that are able to peer at smaller cellular structures, and—with a good deal of engineering—even invisibility cloaks.

Two new types of metamaterials, as the light-bending stuff is known, were developed by researchers at the Nano-Scale Science and Engineering Center at the University of California, Berkeley, and described in separate papers in Nature and Science. One is the first three-dimensional material to have a negative index of refraction, which allows it to bend light in the opposite direction of what you would expect from any other material. The other, also 3-D, doesn’t have a negative index but still provides some negative refraction, and unlike previous metamaterials, it does so in the visible part of the spectrum.

Natural materials have a positive index of refraction, which is a measure of how much they can bend a beam of light passing through them. Stick a pole into a swimming pool, and the portion below the surface appears to jut off at an angle, because of the difference between the indices of refraction of air and water. If the water had a negative index of refraction, the part of the pole below the surface would appear to be above the water.

An index of refraction has an electrical component (permittivity) and a magnetic component (permeability). Building a metamaterial with a structure having features substantially smaller than the wavelengths of light it’s meant to refract causes resonance between the atoms in the material and the photons. This reverses the permittivity and the permeability, making the refractive index negative.

This property of metamaterials opens the door to whole new ways of manipulating light. For instance, in cases when a normal lens cannot resolve anything smaller than half a wavelength of light, metamaterials could make a superlens that could resolve below this so-called diffraction limit. That could open up new possibilities in biomedical imaging, allowing scientists to look at the proteins inside cells. It would also allow the photolithography equipment used to make computer chips to build even smaller features than are currently possible without having to find new sources of smaller wavelengths.

Illustration: UC Berkeley

Fish Out of Water: A fish swimming in water appears slightly closer to the surface than it really is, because of the difference between the refractive index of air and that of water. If the fish were swimming in water with a negative index of refraction it would appear to be swimming above the water.

One of the new metamaterials, described in Nature, consists of 21 alternating 30-nanometer-thick layers of silver and 50-nm-thick layers of magnesium fluoride, a dielectric. Each layer is laid out like a fishnet, with lines 565 nm wide crosshatched by lines 265 nm wide. The material produced a negative index of refraction for infrared light with wavelengths between 1.5 and 1.8 micrometers. That broadband response is more useful than the single frequencies other metamaterials can handle, says Xiang Zhang, the professor at the Berkeley center who directs the research teams and is coauthor of the two papers. More important, the loss of light passing through the material was very low. That’s because the light essentially hopped from one dielectric to the next, with little of the absorbing resonance taking place in the metal. “It’s like crossing a river,” says Zhang. “You keep your feet on the stones and you don’t get wet.” The figure of merit used to measure light loss in a structure was 3.5 in this case, a great improvement over previous materials, most of which have been less than 1.0, Zhang says.

The second metamaterial consisted of a thin slice of alumina with pores etched into it and silver nanowires deposited into the pores. The nanowires were 60 nm in diameter and spaced 50 nm apart. Although the permeability didn’t differ from a normal material’s, the permittivity was reversed if the light entered the material at just the right angle. The researchers used the nanowire structure to negatively refract red light. Getting further into the visible or even the ultraviolet part of the spectrum, where wavelengths are even shorter, is an engineering challenge the group is working on, Zhang says.

David Smith, director of the Center for Metamaterials and Integrated Plasmonics at Duke University, in Durham, N.C., called the work “a very significant milestone.” The fishnet structure, he says, is not yet practical because it has the negative index in only one direction. “Still, I’m just really knocked out by how clean a result they were able to achieve at optical wavelengths using this structure,” he says. “The Zhang group experiment should really prove to the skeptics that negative refraction at optical wavelengths is a reality.”

David Schurig, an assistant professor of electrical and computer engineering at North Carolina State University, in Raleigh, says the fishnet material could quickly lead to smaller waveguides and other devices for telecommunications because it’s already operating at telecom wavelengths.

The prospect that really captures the imagination—using these materials to cloak a person or an aircraft in a shield of invisibility—is much farther off, though Schurig says he’s optimistic about it. There’s no physical reason why you shouldn’t be able to direct light around an object and send it on in its original direction, rendering the object invisible. But one big challenge would be overcoming the loss of light as it travels through several centimeters or more of material. “If you want to cloak something the size of a person, you need a figure of merit of something like 1 million instead of 3.5,” Schurig says

Researchers have demonstrated for the first time they were able to cloak three-dimensional objects using artificially engineered materials that redirect light around the objects.

A self portrait. (Sums up how I feel at the moment.)

Gizmo is so cute! Anyways, John and I watched Gremlins the other night and then today he bought Gremlins II. That shit is gnarly. I always thought it was a kids movie and there are gremlins getting chopped up and mircowaved. There was even a Rambo cameo!!!!!. Gnarly movie.

Saw this invisible stuff after I signed out of my hotmail. Sounds pretty intense. I don't know what to think. Stefan thinks it's a bunch of bullshit. That is pretty wacky though. What do you think?

Also, I bought this Ol' Dirty Bastard album today.

Un nuevo post, que batallé mucho para hacerlo, adivinen la película, en la que me he tardado horas borrando* en internet a los personajes, adivinen, vamos.

*En verdad yo no los borre, pero aun así es un juego interesante.

http://www.msnbc.msn.com/id/26128485/

i included a really neat image of the invisibility cloak that wells wrote so extensively in 'the invisible man' but you probably can't see it. (get it?)

other fun things going on....

one of my greatest friends in the whole wide world is getting married. and did i mention he just became a PhD man as well? congratulations bryn martin!

thats bryn and rachel in a swanky asian joint. they are set to waltz the aisle this saturday.

also i am going to south america (colombia, venezuela...) in a couple of days, for a month and a half. i will hopefully send some fun updates from there.

Nunca me imaginé que con la tecnología que hay hoy en día, podíamos llegar a esto. Según, científicos de Estados Unidos lograron crear un material que podría permitir hacer invisible a objetos tangibles tridimensionales.

Esto consiste en un material que puede desviar la luz alrededor de objetos tridimensionales, haciéndolos “desaparecer”, según afirman los científicos de la Universidad de California en Berkeley. Se trata de un “metamaterial” que ha sido creado a escala minúscula, medida en mil millonésimas de centímetro.

Esperan a que en un futuro esto pueda cubrir cosas mayores, como por ejemplos, mantas o alfombras que puedan cubrir a una persona adulta, haciéndola invisible. Como la luz no es absorbida por el objeto o reflejada en él, una persona sólo puede ver la luz de detrás del objeto, haciendo que éste se torne invisible.

Creo que han quedado sorprendidos al igual que yo. Esperamos que en un futuro se puedan crear “capas” que al ponérselas, nos haríamos invisibles a la visión humana. La verdad que la tecnología esta avanzando y muy rápido.

"Ante todo usted debe recordar que la Atalaya predijo muchas, muchas fechas en lo que se refiere al regreso de Jesús. Todas esas fechas fallaron. La  fecha más promocionada fue la de 1914 y cuando esa fecha fracasó la Atalaya afirmó que Jesús volvió, sólo que su regreso fue invisible.

En este artículo dan una interpretación nueva de las parábolas de Jesús de la moneda, de la mostaza, levadura, etc. Ahora recuerdo que la Atalaya siempre ha dado una Escritura y una explicación para lo que ocurre dentro de la organización. La Atalaya está ahora en un estado de disminución. Los números de los miembros disminuyen y así también son las contribuciones.  Este artículo tiene con fin apuntalar a los hermanos para que aguanten hasta el final. Jesús no apareció, así es que él regresó invisiblemente. El mundo no feneció cuando dijeron que lo haría, así es que llegó al final invisiblemente. El crecimiento de la Sociedad desacelera y ahora, el crecimiento va a ser invisible también. Sí, no estoy bromeando. La Atalaya afirma que muestra un "crecimiento invisible". Por favor no me pida a mí que se lo explique. Léalo por usted mismo y por favor explíquemelo.

¿Crecimiento invisible? Supongo que están construyendo algunos salones invisibles para encargarse de algunas reuniones invisibles para los hermanos invisibles para el crecimiento invisible. Usted debería leer esta edición hilarante".

Story here..

So this basically means it won't be long before the men in black jump out their cars and put on their Govt issue batman cape rid the world of terrorists. yay!!! ...*silence* ...Boooooo!!! this is some ole bullshit ..you realize the first chance they get they gonna be in ur fuckin house checkin your mail and planting evidence to make you look like u butt fuck muslim goats on top of an american flag while reciting verses from the Bible ,The koran, and a bootleg copy of The Kebra negast.

So what would you do with the power of invisiblity? I have some pretty fucked up ideas.

Gustave Flaubert

This movie sucked. It's about a dude that's sorta dying but needs the person that killed him to help living people find his body. This movie was done way too artsy for no friggin reason. How do you make a crappy shitty teen movie artsy? It's like giving Animal House a Shakespearean feel. Doesn't happen. Doesn't work.

Let's put it this way: the only way the kid lives is by having the girl who nearly killed him crawl into bed with his dying body. What? Huh? The Fifi said that we have watched some crappy movies together and are still a couple. She is impressed. 0 poop sticks out of a potential healthy 5.

We are all aware of the benefits of Glass and other transparent materials but the ability to hide or simply reduce the visual impact of objects on demand is an exciting prospect.

Ideas for use of Invisible materials in the real world:
- Chairs and Tables without legs. (I'll buy those!)
- Buildings that appear to float by hiding structural elements
- Lighting (eg: streetlights) that defy gravity.
- Hiding of ugly infrastructure (eg: pylons).
- Amazing visual transitions for live theatre.
- General visual bulk reduction of any object.
- "Soft glass" - practical applications would be enormous.
- Curtains that trap heat, but still allow light in.
- Invisible ropes would have many uses.
- Art. Insane sculptures that appear to defy physics.
- Fashion - new materials will create amazing design possibilities.


Car Manufacturers will save a fortune making ads like these... 

How long do we have to wait? A Korean white paper states 2015 (see our article here on future technology). Guess we'll have to wait and see (or not as the  case may be).

Decían los desarrolladores de la Wii que su tecnología (la del mando) estaba desarrollada desde hace tiempo, lo que faltaba es que se pudiera comercializar de manera suficientemente masiva para bajar los precios. La Wii la lanzó como parte central de su consola y eso la abarató los suficiente como para que todos podamos tener un detector de movimiento en nuestras manos.

Esta semana se habla del lanzamiento de un periférico que lee la mente para gobernar juegos por parte de Emotiv Systems llamado EPOC. Después de la película Firefox en la que se gobernaba un caza de guerra con la mente (el protagonista tenía que pensar en ruso para que el avión le hiciera caso) todos hemos tenido en mente este "periférico" y, como no, para que salga barato tenemos que vincularlo al gran consumo, en este caso, otra vez de los juegos de ordenador.

Está claro que los GPS esran muy caros hasta que se popularizaron como gadget. De hecho cuanto más gadget mejor, un GPS integrado en un coche es prohibitivo, uno de mano o integrado en el teléfono móvil es solo una capacidad más del mismo.

Parece que en un estado bastante más prematuro que el periferico de leer la mente está la tecnología de convertirnos en invisibles. Esperemos que alguna de las compañías e las consolas se interese por la misma para poder desarrollarla rápidamente sino, dice el artículo, los militares están trementamente interesados en ella. pero eso tiende a encarecer más que a abaratar.

De hecho lo único inteligente que han hecho para abaratar desarrollos los militares estadounidenses fue el lanzamiento del DARPA challenge, en el que retaban a las pricipales universidares del mundo a crear un vehículo que pudiese llegar a un destino de manera automática sin conductor, en la tercera edición se consiguió y a los militares solamente les costó el premio.

Parece que ahora sí, la ciencia ficción se está convirtiendo en realidad.

¿Nos controlarán a través del ADN?

Visión a 50 años, crisis energética, necesitamos la innovación

Quién le pondrá límite a la ingeniería genética

Although probably years away from becoming a reality, the work which has been funded by the American military, could render almost anything invisible.  According to the Times Online - "Xiang Zhang, the leader of the researchers, said: “In the case of invisibility cloaks or shields, the material would need to curve light waves completely around the object like a river flowing around a rock.” An observer looking at the cloaked object would then see light from behind it – making it seem to disappear."

As exciting as this sounds do we really want to be able to just disappear and how do we regulate the use of this technology to the benefit of society not its detriment - can you see me now?

Look for more information in Science and Nature this month!

The new work moves scientists a step closer to hiding people and objects from visible light, which could have broad applications, including, unfortunately military ones.

People can see objects because they scatter the light that strikes them, reflecting some of it back to the eye. Cloaking uses materials, known as metamaterials, to deflect radar, light or other waves around an object, like water flowing around a smooth rock in a stream, concealing the object by stopping the reflecting light.

Metamaterials are mixtures of metal and circuit board materials such as ceramic and Teflon.  They are designed to bend visible light in a way that ordinary materials don't. Scientists are trying to use them to bend light around objects so they don't create reflections or shadows as well

It differs from stealth technology, which does not make an aircraft invisible but reduces the cross-section available to radar, making it hard to track.  This will make the planes, or what ever the meaterial covors invisible to the eye as well as radars.

invisbility cloak. While details are scarce on the technology, they have said that it is mostly done by metamaterials that refract light, radar, or other materials. Metameterials are made of metal and circuit board materials such as teflon or ceramic. The technology is being heavily funded by the US Army.

I don't know about you, but this makes me excited and freaked out simeltaneously. I'm assuming this technology is going to have to be heavily restricted. Can you imagine the damage it could do if it was mass produced?

http://www.cnn.com/2008/TECH/science/08/11/invisibility.cloak.ap/index.html

Según un estudio de la Universidad de Berkeley y del Lawrence Berkeley Laboratory, de California han podido crear una material a escala nanometríca (un metro dividido en millones departes) que tiene la peculiar característica de transmitir la luz en sentido opuesto al que la recibe. A diario podemos ver los objetos por la luz que nos rebota de ellos, así nuestro ojo tomas los haces de luz y crea la imagen, ahora bien, si el material no emite ningún haz de luz podría ser invisible. Por ahora solo preeven aplicaciones militares, pero obviamente los nanomateriales tiene muchísima más importancia todavía, un campo con todo por explorar. Harry Potter tenía razon.