Facebook turns up the heat

Facebook’s planned server park in the northern Swedish town of Luleå will release huge amounts of heat that won’t be recycled. The heat emission will raise the surrounding temperature by 1-4 degrees centigrade up to 200 meters outside the plant.

The technical solution that the client has chosen makes it impossible to recycle the heat energy, says Erik Nerell at construction company NCC.

NCC is building the server farms together with the American companies DPS Construction and Fortis Construction.

A small part of the excess heat will be used to heat the office spaces connected to the site.

The municipal environmental committee in Luleå wants Facebook to investigate if the wasted heat can be used to the water needed in the server park.

The committee also wants the company to explain why they don’t think it’s possible to recycle more of the heat.

When Facebook was granted a building permit for the Luleå site, the county administrative board demanded that the company formulate a strategy to limit their energy usage. No demands were made to recycle the excess heat.

Sources: DN, SvD

The city as a copper mine

The price of copper is skyrocketing, and it’s becoming increasingly profitable to recycle old pipes and cables that buried under our cities. Linköping, Sweden is hosting a pilot project.

Linköping Institute of Technology is investigating how much metal is actually buried under the city. Old pipes and cables have been sent to an Austrian company that is testing a new method of extracting the copper core from its casing.

Stena Metall in Karlstad, Sweden are preparing further tests of the same technology – but with a lot longer cables. They are planning on starting this fall, and the real copper extraction in Linköping should start sometime next year.

We are hoping that the Austrian method will work. It is a cheaper and more environmentally sound technique than digging up cables and pipes. It will also lead to a lot less disturbances above ground, says Joakin Krook from Linköping Institute of Technology.

Kabel-X is the name of the Austrian technique. It works by digging a hole at both ends of the cable, and injecting organic oil in the cable to decrease the friction between the copper core and the outer shell. A winch is then used to pull the copper core out.

Rumours about upcoming blackout in Bahrain prompt Telecomix to set up emergency comms

Rumours on twitter about an upcoming internet blackout in Bahrain have prompted Telecomix to set up some free to use dialup modem pools. The dialup connections can be reached at the following numbers:

  • - French free isp FDN (about 100 lines): +33172890150 (login/pass: toto/toto)
  • - German free Free.de (about 35 lines): +4923184048 (login/pass: telecomix/telecomix)
  • - Swedish isp Gotanet (about 30 lines atm, can expand services): +46708671911 (login/pass: toto/toto)

More up to date information can be found on dialup.telecomix.org

Load your Android phone with offline travel guides to avoid roaming charges

There are a lot of great travel gudies online. Wikitravel is one of the biggest and is an awesome travel guide site. It is similar to Wikipedia in that anyone can edit the site. The English version of the site currently features over 25,000 destination guides and that number is growing steadily.

Most of these sites have great mobile websites. But if you are travelling abroad it’s not a very good idea to go buck wild on the mobile data, your phone bill can easily become astronomically huge.

The answer is to find a way to preload your phone with all the travel guides you want, allowing you to browse the guides without worrying about the roaming charges or finding an open Wifi hotspot.

Luckily some company named Triposo already thought of this and created a smartphone app called Triposo Travel Guide. It is available for both Android and iOS.

Triposo Travel guide lets you choose the countries and cities you’ll be visiting, and download guides for those destinations to your phone. It includes articles from Wikitravel, Wikipedia, World66 and Openstreetmap

The app is completely free and available from the Android Market and Apple App Store.

Download: Android Market, Apple App Store

Spotify for iOS now supports 320 kbit/s

Spotify has upped the sound quality in the latest version of their iOS app. Those of you who have a premium Spotify account can now stream music in 320 kbit/s, up from 160 kbit/s in the previous version.

There is still no word on when this feature will be available for Android or Windows Phone.

Download Spotify for iOS from the Apple App Store

Woman had new jaw made in a 3d printer

For the first time a patient has gotten a new jaw made in a 3d printer.

The Belgian company Layerwise claims to be the first company in the world to make a custom jaw in a 3d printer and surgically implant it in a patient.

A video posted to Youtube shows the jaw being cut out of a block of titanium using a laser. Layer by layer the jaw is built using a precision laser. The jaw is then coated with a ceramic powder.

The jaw was made to fit the patient, an 83 year old woman suffering from a chronic inflammation of the jaw.

The surgery took place this summer In the Netherlands and the results are now being shown to the world.

Right after she woke up the patient could say a few words and she could swallow the day after, said Jules Poukens at Hasselt University.

The jaw contains holes that will make it easier for muscles and nerves to grow into. Artificial teeth will be attached to the jaw in a coming surgery.

 

54 meter tall greenhouse to be built in Linköping, Sweden

Locally produced vegetables are becoming more and more popular. Plantagon International AB aims to capitalize on this by building a 54 meter high greenhouse in the city of Linköping, Sweden.

The greenhouse was developed together with Sweco and is designed for vertical agriculture. Carbon dioxide will be pumped from the citys power plant to help with the photosynthesis.

The project has a budget of 200 million Swedish kronor, around 30 million US dollars.

“With this greenhouse we’re developing and fine-tuning the technical systems required for vertical farming in urban areas, together with several well-known Swedish partner companies. We want to gather expertise in the field, and our long-term objective is to create an international Center of Excellence for Urban Agriculture here in Linkoping”, says Hans Hassle from Plantagon.

Source: Mynewsdesk via Ny Teknik

How to make XBMC start on your secondary display

If you are using Windows 7 it’s really easy to make XBMC start on your secondary display, even if your secondary monitor isn’t activated.

Start by typing the following into notepad:

@echo off
C:\Windows\System32\DisplaySwitch.exe /extend
start /WAIT xbmc.exe
C:\Windows\System32\DisplaySwitch.exe /external

And save the file as XBMC.bat somewhere convenient. Make sure you select “Save as type: All file types” when you are saving the file. Otherwise it will be saved as a text file.

Now just run XBMC.bat. It will switch your display setup to extended view and start XBMC. If XBMC is configured correctly it will start on your secondary monitor.

The militarization of American hackerspaces

The years 2007-2008 saw an international boost for hackerspaces. The practical enthusiasm manifested in a large number of spaces has been followed by a growing theoretical interest based on the thought that hackerspaces stand for something good. There has been a sense of community between the people engaged in hackerspaces.

This first phase seems to be ending. In the second phase taking form now in the beginning of 2012 it’s no longer obvious that everyone is working towards the same goals. Conflicts develop, in a way that is manifested at the blog DEMILIT.

Background

DARPA is the name of an agency of the United States Department of Defense. DARPA develops technology for the American military. In February 2011 it became known that DARPA had tasked well known hacker Mudge, aka Peiter Zatko with finding ways to stop leaks similar to the ones Brian Manning is being accused of doing. Peiter Zatko let it be known that DARPA was ready to finance hackerspaces working on security issues of interest to the military.

“Maybe some lucky hackerspace will get some money to make drone swarms.” Cory Doctorow said.

In January 2012, a press release was published.

O’Reilly Media’s Make division, in partnership with Otherlab, has received an award from The Defense Advanced Research Projects Agency (DARPA) in support of its Manufacturing Experimentation and Outreach (MENTOR) program. The team will help advance DARPA’s MENTOR program, an initiative aimed at introducing new design tools and collaborative practices of making to high school students.

Makerspace, developed by Dale Dougherty of O’Reilly Media and Dr. Saul Griffith of Otherlab, will integrate online tools for design and collaboration with low-cost options for physical workspaces where students may access educational support to gain practical hands-on experience with new technologies and innovative processes to design and build projects.

Both Make and Boing Boing should be considered trend-setting in the hackerspace culture. Neither of them wants to comment on the fears that the United States military want to use hackers as a part of their massive investment in UAVs.

It is one thing to accept funding from DARPA, but accepting money and refusing to comment on It is very suspicious.

The dividing lines are quickly being drawn. The other day an interview with Mitch Altman was published. Mitch has been seen as a missionary or even godfather for new hackerspaces around the world. He has previously had a lot of contact with Make, but explains that he has severed all ties with him.

I told them I couldn’t continue to do what I’ve been doing with them at Maker Faire, because they had accepted a grant from Darpa. They’re a fantastic organization that have done so many amazing things for me and for many other people, and will continue to do so. But I just think it’s incredibly unfortunate that they’re accepting money from DARPA. They don’t need that money.

This looks like a dawning split within the American scene. The question is what shape the question will take when it spreads internationally. Hopefully not a split between Americans and Europeans, but something more productive than that. We’ll see.

Tribler is a new unstoppable bittorrent network

Tribler is a new decentralized bittorrent network that is nearly impossible to shut down. It doesn’t require any vulnerable trackers, and they’ve also decentralized searching.

“The only way to take it down is to take the Internet down” says the lead developer Dr. Johan Pouwelse from Delft University of Technology

Tribler is completely open source and is available for Linux, Windows and Mac. It can be downloaded from tribler.org

Source: TorrentFreak via Techworld