Iniciado por eleztrico

Perdón de antemano por el inciso.
¿Puede seralgo más que charlatanería?

Iniciado por Pinchazo

Es una chorrada como un piano.

¿Alguien ha dicho que ese motor viole alguna ley de la termodinamica?

Termodinámica - Wikipedia, la enciclopedia libre

¿Que tal si pensamos un poco en que es exactamente un iman?

Imán (física) - Wikipedia, la enciclopedia libre

Un iman repele o atrae otros imanes o metales sin necesidad de ningun movimiento o gasto energetico externo. fuerza limpia

YouTube - magnetic Demo

El movimiento da energia

http://es.youtube.com/watch?v=mgRFPp...eature=related

si repelemos hacia arriba, tenemos el tren magnetico

YouTube - Train of magnetic repulsion

si repelemos en diagonal movemos una rueda

http://es.youtube.com/watch?v=jB2n9b...eature=related
YouTube - Perendev magnetic motor

y si lo hacemos a lo bestia, con imanes de la hostia (creo que son electricos mediante energia solar) y hecho como debe hacerse... para una moto...

http://es.youtube.com/watch?v=6_41bt...eature=related

y ahora la pregunta crucial ¿Que negocio es vender energia limpia cuando te puedo vender pilas o gasolina? ¿Alguno ha visto la cantidad de gilipolleces que venden para la WII? Quiza ahi tengas la respuesta al futuro de las "gasolineras" y los vehiculos hibridos que parecen ser que son los unicos a los que estan compañias estan dejando comercializar... El que presenta otra cosa desaparece misteriosamente...

Otra cosa es que unos imanes tengan la fuerza repulsiva de mover ¿200? kg de un coche... ¿que peazo de ruedas y cantidad de imanes necesitaria? Ya que nos ponemos asi porque no hacerlo volar?

No me gusta nada la palabra imposible...

Iniciado por eleztrico

Te agradezco el rollo. Sacaba sobresaliente en física en el instituto.

A Window That Washes Itself? New Nano-Material May Revolutionize Solar Panels and Batteries, Too

ScienceDaily (Dec. 4, 2009) — A coating on windows or solar panels that repels grime and dirt? Expanded battery storage capacities for the next electric car? New Tel Aviv University research, just published in Nature Nanotechnology, details a breakthrough in assembling peptides at the nano-scale level that could make these futuristic visions come true in just a few years.



TAU's nanosized "forest of peptides" can be used as the basis for self-cleaning windows and more efficient batteries. (Credit: Image courtesy of American Friends of Tel Aviv University)

Operating in the range of 100 nanometers (roughly one-billionth of a meter) and even smaller, graduate student Lihi Adler-Abramovich and a team working under Prof. Ehud Gazit in TAU's Department of Molecular Microbiology and Biotechnology have found a novel way to control the atoms and molecules of peptides so that they "grow" to resemble small forests of grass. These "peptide forests" repel dust and water -- a perfect self-cleaning coating for windows or solar panels which, when dirty, become far less efficient.

"This is beautiful and protean research," says Adler-Abramovich, a Ph.D. candidate. "It began as an attempt to find a new cure for Alzheimer's disease. To our surprise, it also had implications for electric cars, solar energy and construction."

As cheap as the sweetener in your soda

A world leader in nanotechnology research, Prof. Gazit has been developing arrays of self-assembling peptides made from proteins for the past six years. His lab, in collaboration with a group led by Prof. Gil Rosenman of TAU's Faculty of Engineering, has been working on new applications for this basic science for the last two years.

Using a variety of peptides, which are as simple and inexpensive to produce as the artificial sweetener aspartame, the researchers create their "self-assembled nano-tubules" in a vacuum under high temperatures. These nano-tubules can withstand extreme heat and are resistant to water.

"We are not manufacturing the actual material but developing a basic-science technology that could lead to self-cleaning windows and more efficient energy storage devices in just a few years," says Adler-Abramovich. "As scientists, we focus on pure research. Thanks to Prof. Gazit's work on beta amyloid proteins, we were able to develop a technique that enables short peptides to 'self-assemble,' forming an entirely new kind of coating which is also a super-capacitor."

As a capacitor with unusually high energy density, the nano-tech material could give existing electric batteries a boost -- necessary to start an electric car, go up a hill, or pass other cars and trucks on the highway. One of the limitations of the electric car is thrust, and the team thinks their research could lead to a solution to this difficult problem.

"Our technology may lead to a storage material with a high density," says Adler-Abramovich. "This is important when you need to generate a lot of energy in a short period of time. It could also be incorporated into today's lithium batteries," she adds.

Window Cleaner a thing of the past?

Coated with the new material, the sealed outer windows of skyscrapers may never need to be washed again -- the TAU lab's material can repel rainwater, as well as the dust and dirt it carries. The efficiency of solar energy panels could be improved as well, as a rain shower would pull away any dust that might have accumulated on the panels. It means saving money on maintenance and cleaning, which is especially a problem in dusty deserts, where most solar farms are installed today.

The lab has already been approached to develop its coating technology commercially. And Prof. Gazit has a contract with drug mega-developer Merck to continue his work on short peptides for the treatment of Alzheimer's disease -- as he had originally foreseen.

Breaking Carbon-Hydrogen Bonds: Cheap, Easy 'Kitchen Chemistry' Developed to Perform Formerly Complex Synthesis
The research, led by Scripps Research Associate Professor Jin-Quan Yu, was published November 26, 2009, in Science Express, an advance, online edition of the journal Science.

"This paper is a big jump forward," said Yu. "Our reaction is as simple as something you'd do in the kitchen. There are many fewer steps than the conventional method. There's less waste. In addition, everything you need is inexpensive and off-the-shelf -- including common table salt."

Because carbon-hydrogen bonds are simple and abundant in naturally occurring organic molecules and in commercially available drugs, they are ideal targets for chemists who want to design and manipulate molecules. An improvement to current methods for working with these bonds has the potential to revolutionize work done in academic and industrial laboratories around the world.

Bread-and-Butter Technology

Currently, to forge carbon-carbon bonds in place of carbon-hydrogen bonds, chemists rely heavily on a method called "Mizoroki-Heck reaction."

In this reaction, chemists first must install a halide in the molecule of interest as a "handle," replacing the existing carbon-hydrogen bonds with carbon-halide bonds. The chemists then join these molecules with other molecules using a metal catalyst, and then remove the "halide handle."

"Once installed, the halide can stick like glue," explained Yu, "so you can join one halogenated molecule with another molecule readily with a metal catalyst. The halide technique is very powerful and many technologies use it, including for the creation of almost any drug. It's a bread-and-butter technology."

But, despite its widespread use, this technique has some downsides. First, there's the waste (both in terms of labor and energy as well as literal waste) of the steps of adding and removing the halide from the molecules. Then, perhaps even more problematic, installing the halide into a molecule of interest isn't always so easy.

"To install a halide, you have to install it at the right position," said Yu. "You can't install it just anywhere. Sometimes that is impossible or difficult, taking many, many steps."

So the question arose: Can chemists develop a new method to manipulate carbon-hydrogen bonds and join together molecules without the intermediate step of installing a halide?

The Search for a Better Way

Over the last several years, many laboratories around the world have taken up this challenge. Early research in this new area of study (including papers by Yu) showed that this goal was possible to achieve under specialized conditions. However, making the reaction economically feasible and practical for the average chemistry laboratory was an elusive goal -- until now.

In the new Science Express paper, Yu and colleagues start with a simple and commonly used substrate, a derivative of acetic acid (which gives vinegar it's sour taste).

"This substrate is used daily in the pharmaceutical industry and in natural product synthesis," said Yu. "It's a major class."

The team then designed ligands (molecules that bind to a site on a metal catalyst) out of simple derivatives of amino acids (protein building blocks). Because of their specific shape, these ligands guide the metal to break a carbon-hydrogen bond at a particular position selectively, and carbon-carbon bond formation with another molecule then takes place.

To demonstrate the utility and versatility of the lab's technique, for the study the team synthesized several natural product core structures. These included a complex molecule, a polyketide aromatic, that is an essential component of many antibiotics.

"The Science paper is the first demonstration that we can actually take an acetic acid derivative and then make a very complex molecule," said Yu. "And yet in none of the steps do we use anything the layman cannot afford or take off the shelf. We call it 'layman chemistry.' We expect that this reaction and others grounded in this philosophy will find many uses."

In addition to Yu, who is a recent recipient of the Eli Lilly Grantee Award, authors of the paper are graduate students Dong-Hui Wang and Keary Engle, and postdoctoral fellow Bing-Feng Shi, all of Scripps Research.

The research was supported by Scripps Research, the National Institutes of Health, Amgen, and Eli Lilly, as well as by fellowships from the A.P. Sloan Foundation, the National Science Foundation, the Department of Defense, Scripps Research, and the Skaggs Oxford Scholarship Program.

En consecuencia, España tiene en estos momentos uno de los mejores sistemas hidráulicos del mundo y uno de los mejores sistemas eléctricos del mundo. Para ir más lejos hay que evitar el bloqueo institucional de los nuevos usos hidroeléctricos y bombeos reversibles de los embalses que son la condición imprescindible para el almacenamiento de la eólica que en muchas noches llega a ser excedentaria y se desconecta ya que los nucleares y las de carbón no se pueden parar.

Todo lo anterior va a requerir diseñar y planificar a corto plazo unos 10.000 MW en bombeos reversibles y una ampliación de la red eléctrica de alta tensión, una red inteligente con transporte a larga distancia y conectada con el resto de Europa ya que España podría, probablemente, exportar excedentes de energías renovables a partir del año 2030 aproximadamente.

Iniciado por Great Dictator

Vuelven los embalses y los bombeos reversibles




Aquabank, almacenamiento de energía hidráulica en el subsuelo




Bombear agua hacia arriba cuando se dispone de energía, para hacerla caer de nuevo cuando se necesita es una tecnología conocida muy usada en distintos lugares. Pero Riverbank Power, una empresa canadiense con experiencia en el campo de la energía eólico, ofrece un planteamiento totalmente novedoso para almacenar la energía cinética potencial del agua. En lugar de usar colinas o lugares elevados para hacer subir el agua, la guarda en el subsuelo e invierte el proceso...........

Iniciado por Great Dictator

Vuelven los embalses y los bombeos reversibles




Aquabank, almacenamiento de energía hidráulica en el subsuelo




Bombear agua hacia arriba cuando se dispone de energía, para hacerla caer de nuevo cuando se necesita es una tecnología conocida muy usada en distintos lugares. Pero Riverbank Power, una empresa canadiense con experiencia en el campo de la energía eólico, ofrece un planteamiento totalmente novedoso para almacenar la energía cinética potencial del agua. En lugar de usar colinas o lugares elevados para hacer subir el agua, la guarda en el subsuelo e invierte el proceso...........