ITClub

BEIRUT—Iranian authorities deployed in force across Tehran Wednesday to conduct last-minute security sweeps and warn residents to refrain from joining antigovernment protests planned for Thursday.

The government typically orchestrates large, carnival-like rallies and demonstrations to mark the anniversary of the Islamic Republic. For this year’s events on Feb. 11, the day marking the culmination of the annual celebrations, opposition leaders have called for protesters to demonstrate against the regime. That has set the stage for clashes between authorities and demonstrators, who have taken to the streets repeatedly to protest the outcome of presidential elections in June.

Government officials, meanwhile, ratcheted up threats against any protests Thursday, vowing to confront demonstrators on the streets and calling for government supporters to turn out in large numbers. Iranian officials have branded protesters as agents of foreign powers.

The Iranian judiciary has handed down a number of harsh sentences against protesters arrested in previous demonstrations, including at least 10 pending death sentences.

On Wednesday, semi-official news services and opposition Web sites reported last-minute attempts by police and plain-clothes militia to suppress antigovernment demonstrations.

Basij militia took over a large bus and taxi station in western Tehran, shutting it down and draping a banner over the terminal stating the area will serve as headquarters for security forces.

Iranian Web sites said the bus terminal would also be used by security forces coming in from the provinces to help suppress protests in the capital.

The government typically buses in large numbers of government supporters from outlying regions to Tehran to participate in rallies.

Meanwhile, human-rights groups in Iran reported late Wednesday that 19 mothers whose children were killed in previous post-election unrest, had been detained by authorities.

Iranians have reported widespread service disruptions to Internet and text messaging services, though mobile phones appeared to be operating normally Wednesday.

Iran’s telecommunications agency announced what it described as a permanent suspension of Google Inc.’s email services, saying instead that a national email service for Iranian citizens would soon be rolled out. It wasn’t clear late Wednesday what effect the order had on Google’s email services in Iran.

Google didn’t have an immediate comment about the announcement.

Police have also confiscated satellite dishes from residential roof tops, according to opposition Web sites. Some pedestrians have been quoted on opposition Web sites saying that their mobile phones were searched and, in some cases, taken by police patrolling areas of the capital where protests have erupted in the past.

Iranian authorities tasked with upholding Islamic values have also been scouring the streets, harassing people wearing green, the trademark color of the opposition, according to witness accounts posted on opposition Web sites.

Basij forces, the mostly volunteer corps of progovernment militia, have distributed flyers to homes in many neighborhoods, saying that progovernment supporters “will confront the enemies of Islam” in any protests Thursday.

In south Tehran, Basij members came in a caravan of 15 motorbikes, according to several opposition sites, whose accounts corroborated with each other. They knocked on doors and handed out flyers, or threw them over the street-side walls of residential compounds, the reports said.

Iran’s Revolutionary Guard Corps, the country’s elite security force, has deployed its troops along routes planned for the opposition demonstrations on Thursday.

Local media have been warned to avoid provocative headlines and not to cover protests not sanctioned by the state. The few foreign reporters still accredited to work in Iran have been told they can only cover government celebrations, and are banned from interviewing opposition supporters or regular citizens.

Political dissidents and activists who were recently released from jail have been called in by the intelligence ministry in the past few days and warned not to take part in demonstrations on Thursday, according to a report by the Organization to Defend Human Rights and Democracy in Iran, a local human-rights group.

Opposition leaders don’t appear to be backing down. Mehdi Karroubi, a former presidential candidate, said Wednesday he will march peacefully from a neighborhood in west Tehran towards the capital’s Azadi Square Thursday morning.

Opposition Web sites reported that former president Hashemi Rafsanjani, an opposition leader, held an emergency meeting with Supreme Leader Ayatollah Ali Khamenei on Monday night, complaining about the heavy-handed crackdowns ahead of Feb. 11 and calling for “the end of shameful actions” against protesters.

Despite the crackdown, authorities Wednesday appeared to also signal some flexibility. Iran’s Revolutionary Court on Wednesday reduced the prison sentence of Iranian-American scholar Kian Tajbakhsh to five years in from 15, in an appellate hearing. Mr. Tajbakhsh was sentenced on charges of plotting against national security.

Alireza Beheshti, a top aide to opposition leader Mir Hossein Mousavi, was released from prison Tuesday night in critical condition, after suffering a heart attack in Evin prison this week, according to opposition Web sites.

Despite having their hands in just about everything online, they’ve never been able to tackle what is a key part of the fabric of the web: social. Yes, they have Orkut and OpenSocial, but no one actually uses them. Okay, some people use them, but not in the meaningful social ways that people use Facebook or even Twitter. Today, Google may have just solved their social problem.

Google Buzz is easily the company’s boldest attempt yet to build a social network. Imagine taking elements of Twitter, Yammer, Foursquare, Yelp, and other social services, and shoving them together into one package. Now imagine covering that package in a layer that looks a lot like FriendFeed. Now imagine shoving that package inside of Gmail. That’s Buzz. If Google Wave is the future, Google Buzz is the present.

FriendFeed Reborn. On Growth Hormone.

Fundamentally, Buzz is a stream of status updates, pictures, links, and videos from your friends. You can “like” these items and you can comment on them. And if you use Flickr, Picasa, Google Reader, or Twitter, you can also automatically have those items imported into your stream. And Buzz will recommend items you might like based on your friends’ activity.

Yes, again, it sounds a lot like FriendFeed. But it has a critical component that FriendFeed never had prior to its acquisition by Facebook: a massive installed user base. Maybe you missed the key bit of wording above: it resides inside of Gmail. Rather than trying to build its own new social service from scratch, Google is making Buzz a key part of their email service (right below the Inbox tab) that 176 million unique visitors each month, according to comScore.

Google Buzz is a new way to start conversations about the things you find interesting. It’s built right into Gmail, so you don’t have to peck out an entirely new set of friends from scratch — it just works. If you think about it, there’s always been a big social network underlying Gmail. Buzz brings this network to the surface by automatically setting you up to follow the people you email and chat with the most. We focused on building an easy-to-use sharing experience that richly integrates photos, videos and links, and makes it easy to share publicly or privately (so you don’t have to use different tools to share with different audiences). Plus, Buzz integrates tightly with your existing Gmail inbox, so you’re sure to see the stuff that matters most as it happens in real time.

[Tom Shannon] uses science as part of his art. One of his methods when painting is to use this radio controlled paint pendulum. He gave an interview at his studio, which we’ve embedded after the break, and goes into detail about this device. It has six different reservoirs that hold the paint colors. Each gravity-fed canister connects to a central nozzle with flexible tubing. The hand held control box has a slider for each color that moves a servo pinching each supply tube. This ingenuity keeps him creating even though Parkinson’s Disease has started to manifest itself with tremors in his hands.

It’s hard to make out the paintings seen above, but the ones on display in the video are pretty amazing. He mentions that anything can be loaded into the hoppers, including tomato sauce. Is anyone else thinking about large scale pizza constuction? This also reminds us of the mechanical bartenders we’ve seen in the past.

Trusted Platform Module based cryptography protects your secrets as well as your government’s secrets.  Well, it used to. [Christopher Tarnovsky] figured out how to defeat the hardware by spying on its communications. This requires physical access so it’s not quite as bad as it sounds, but this does reach beyond TPM to many of the security chips made by Infineon.  This includes peripheral security chips for Xbox 360 and some chips used in cell phones and satellite TV.

[Christopher] revealed his hack during his presentation at Black Hat 2010. The method is wicked-hard, involving removal of the chip’s case and top layer, then tapping into a data bus to get at unencrypted data. The chip still has some tricks up its sleeve and includes firmware traps that keep a look out for this type of attack, shutting down if it’s detected. Infineon commented that they knew this was possible but regard it as a low threat due to the high skill level necessary for success.

This looks like a home entertainment center of yore but something’s not quite right. Where is the turntable used to play the music? It turns out that this Danforth Standard Digitrola is digital and doesn’t rely upon wax for an input. [Jonathan Danforth] built it as a show piece and it exhibits fine craftsmanship. A sound driver uses the brass horn and the acoustical chamber to put out what sounds like a fine quality end product.  Hear it playing some Daft Punk in the video after the break. The music comes from an MP3 board inside that has a 50W amplifier and reads the music from an SD card. The only control available to the listener is the brass knob which controls the volume.

We just found this great portable multitouch rig called the portatouch. Made by a user at the NUI group website named [portatouch], this system uses a stripped down LCD as the display with IR LEDs edge lighting a touch surface in front of it. A camera mounted below the LCD picks up the reflections of the LEDs and converts it to touch points. While the implementation isn’t anything new, the package is really great. If you want to learn how to set up the technical side of it all, head over to the NUI group website and you’ll find all you want. We would love to see a more detailed breakdown of his rig though. The portability and quick construction are fantastic and seem like they could be reproduced without a ton of custom work.

[Manekinen] built a power supply monitor based around an AVR ATtiny13. Voltage and amperage are displayed on a 16×2 LCD character display (we’re not sure what the third number is… samples per second?). This is no small feat considering that the tiny13 is an 8-pin chip. He makes it happen by using the pins for both LCD control and ADC input. To make this happen the HD44780 compliant display is used in 4-bit mode. Check out the video after the break and hit up the non-translated page if you want to download the source code and PCB artwork. A note of warning, he’s using the RESET pin for I/O which means once you burn the fuses you’ll need a programmer that has High Voltage Serial Programming capabilities if you want to reprogram the chip.

“Everyone needs a hobby,” they tell us. For the blogger mysteriously identified only as “R,” that hobby would be an almost fanatical nostalgia for the Commodore 64 computer.

At first we thought this was a fan community site, but apparently it’s all the work of a single person. [R] has tweaked, extended, repackaged and resurfaced this 1980’s icon in nearly every imaginable way. They tend to gloss over the technical aspects of these mods, but that’s okay – the C64 is such an exhaustively documented system now that the site dwells mainly on the aesthetics and meaning of these reborn devices.

The 64 has made an indelible impression on electronic music, and the machines are still sought after by collectors, composers and circuit-benders. [R] pays homage by housing these vintage systems in styles reminiscent of even vintage-er synthesizers. Any one of these would warrant a post here, yet there’s a whole collection to browse. Check it out!

Meet GuruPlug, an all-in-one server that is now available for pre-order. This is the next generation of the popular SheevaPlug that features some added goodies. The base model sells for the same $99 and appears to have the same specs as the original but for $30 more, the GuruPlug Server PLUS moves to 2 Gigabit Ethernet ports, one eSATA connector, and built-in WiFi and Bluetooth. All of this for $129 and it only pulls 5 watts? Wow.