ALPHA, la bici que se ajusta a tus preferencias de pedaleo

Lo que tenéis aquí es probablemente una de las bicicletas más avanzadas que existen en el mundo. Se tata de ALPHA, un bici de última generación en la que los componentes mecánicos y la electrónica se aunan integrándose a la perfección.

De esta manera los sitemas de ALPHA permite usarla como una bici de piñón fijo o una de las de toda la vida con marchas y frenos de una manera fluida y ajustándolo todo de manera automática sin que tengas que preocuparte de nada.

Pero ALPHA no es sólo una joya de la ingenieria gracias a ese sistema dual denominado SWIFT Drive, además no utiliza cadena, sino una cinta interna regulada con un embrague electrónico.

Para alimentar todos los componentes electrónicos cuenta con una batería recargada por unaminidinamo de alto rendimiento que apenas influye en la resistencia a la pedalada.

Aparte, esta maravilla utiliza piezas personalizadas creadas con materiales como el acero, el aluminio y la fibra de carbono que combina el uso de fabricación de última generación como máquinas de control numérico, sinterización directa de acero inoxidable por láser e incluso la impresión 3D de plásticos.

Vamos, que barata lo que se dice barata no es, pero se trata más de un prototipo para demostrar su sistema Swift Drive a fin de fabricarlo algún día en serie para que lo podamos disfrutar todos en las bicis y, quien sabe, algún día puede que incluso en monociclos también…

Fuente: http://www.gizmodo.es/2011/04/28/alpha-la-bici-que-se-ajusta-a-tus-preferencias-de-pedaleo.html

Como enviar archivos ejecutables por Gmail

How To Send An Executable File Via Gmail

Up until today I have never tried to send an executable file via Google’s email service. When I tried that today, it looked at first as if it was not a problem. The file was uploading fine and showing up under attachments in the send message window.

When I tried to send the email however, I received an error message. It stated: Error. File.exe is an executable file. For security reasons, Google Mail does not allow you to send this type of file.

A click on OK displayed the compose message screen again, with the file still being attached to the email.

What I needed was a workaround. Sure, I could for instance upload the executable file to a file hosting website like Mediafire, and copy and paste the share file url in the email instead. That’s a possibility and not a bad one.

Then again, I prefer a more straightforward approach. I first tried zipping the file to see if that was enough to bypass the file filter on Gmail. It was not. The very same message was displayed and the email failed to send.

Next thing I tried was to zip the executable file and apply a password to the file to see if that would bypass the executable file filter which it did not as well. Both options did not yield the desired result. Gmail was still blocking the email from being send. I did some experiments with different encryption formats, and found out that 7-zip files that contain executable files can be send, while more common extensions like zip or gz are blocked.

Lastly I decided to change the file extension of the executable, from exe to txt. And lo and behold, the email went through the filters. Changing the file extension of the attachment can be problematic in itself, especially so if you are not the recipient of the email. You need to provide instructions, preferably in the message, that the file extension needs to be changed before the file can be run on the target computer.

So, if you want to send an executable as an attachment from your Gmail account, you either need to rename the file extension to bypass the filter, upload the file elsewhere and link to it in the mail body, or use a compression format like 7z. The latter being the most comfortable option if the recipient uses a tool that supports the unpacking of those files.

Is there an option that I have overlooked? Let me know in the comments.

Fuente: http://www.ghacks.net/2011/04/26/how-to-send-an-executable-file-via-gmail/

2x1: AMD confirma el soporte para SLI en sus próximos chipsets

Nvidia: Users of AMD Platforms Demand SLI Multi-GPU

Nvidia Corp. on Thursday confirmed that mainboards based on the forthcoming core-logic sets from Advanced Micro Devices will be able to support Nvidia's SLI multi-GPU Technology. The move confirms importance of the next-generation AMD FX-series processors code-named Zambezi powered by Bulldozer micro-architecture for the PC gamers market.

"We are pleased to announce that SLI has been licensed to the world’s leading motherboard companies for integration onto their upcoming motherboards featuring AMD’s 990FX, 990X and 970 chipsets. Asus, Gigabyte, ASRock, and MSI are among the first motherboard manufacturers to offer this new capability, with more coming on board shortly," said Tom Petersen, director of technical marketing at Nvidia.

For several years few gamers who demand maximum performance did not use AMD microprocessors and chose Intel CPUs instead. Naturally, the lack of SLI support by AMD platforms was not a problem. However, it is expected that the next-gen FX chips with Bulldozer micro-architecture and up to eight x86 cores will offer major performance improvements over currently available AMD Phenom II chips and will even be able to compete against Intel Core i-series "Sandy Bridge" CPUs. As a result, SLI support could be useful on AMD's next-gen platforms with Zambezi processors.

It is rather ironic that SLI technology was introduced first (not taking an Intel server platform into consideration) on Nvidia nForce for AMD platform when Athlon 64 chips were king of the hill. Eventually, Nvidia launched nForce chipsets with SLI support for Intel platforms too. SLI used to be exclusive for nForce chipsets, but when Nvidia lost ability to offer chipsets for modern Intel and AMD chips, it had to start licensing the technology and did so only for Intel Core i-series chips. With potentially better performance of AMD FX "Zambezi" chips, Nvidia now has to license SLI for AMD-based platforms too.

Fuente: http://www.xbitlabs.com/news/mainboards/display/20110428084737_Nvidia_Confirms_SLI_Support_on_Next_Generation_AMD_FX_Bulldozer_Platforms.html

SLI on AMD Chipsets Confirmed, ASUS Crosshair V Box Pictured

It could be curtains down for NVIDIA nForce SLI chipset for AMD platform, as the GPU giant formally announced its intentions to license NVIDIA SLI technology for use on AMD chipset-based motherboards starting from AMD's upcoming 9-series chipset. Rumors about this development startedtrickling in around late March. NVIDIA's public release confirms most of what was outlined in the leaked company slide in the older article, that licenses will be only offered to 9-series (and later) chipset-based motherboards, and that only those motherboard manufacturers that are licensed by NVIDIA for SLI on their Intel platform motherboards will be given licenses. NVIDIA specifically mentions ASUS, Gigabyte, ASRock, and MSI as qualifying partners.
The more interesting part of the release, however, was the box-art of ASUS' upcoming high-end socket AM3+ motherboard, the Republic of Gamers (ROG) Crosshair V Formula. Its salad of product logos is what is most fascinating. For one, it confirms the product name and logo of AMD's new high-end desktop processors to be "FX", as revealed by the box designs. The next logo is of Phenom II, and as we know, AM3+ gives backwards compatibility to older AM3 processors. Next up is the AMD 9-series chipset logo, another Radeon-like logo by AMD. Next to it is the logo of the moment: NVIDIA SLI, and lastly ATI CrossFireX. There is a newer rectangular logo of "AMD CrossFire" that succeeds the ATI CrossFireX logo, but maybe ASUS, like many, found it too hideous. You can probably make a better one on MS Paint.

Source: GeForce.com

Fuente: http://www.techpowerup.com/144886/SLI-on-AMD-Chipsets-Confirmed-ASUS-Crosshair-V-Box-Pictured.html