I found very interesting post on Tom Barrett's "ICT in my Classroom" blog about how Twitter is used as an educational tool.

Tom's post also describes where Twitter is positioned among other communications tools. Twitter is not a synchronous or an asynchronous communication system. It is rather both at once depending how channel's followers use it.

He makes a nice metaphoric comparison between Twitter and a flowing torrent where people can just stand by it and observes the flow. Some prefers to jump into while others simply do not pay much attention to the  stream.

Personally I am amazed to see how many different ways Twitter is used today. There are, indeed, lots of individuals (you and me) but also some politicians (Clinton, Obama, UK Prime Minister), Public Services (LA fire department, AmCross), Airlines, News agencies, etc.. which are increasingly using it, but not necessarily to interact with others but to broadcast content or information.

Is any company using Twitter for internal use only ? 

London police launched on 25th of February a new advertising campaign. Posters and TV ads are urging Londoners to turn in people who might be taking pictures of CCTV cameras.

"Thousands of people take photos every day.

What if one of them seems odd ?

Terrorists use surveillance to help plan attacks, taking photos and making notes about security measures like the location of CCTV cameras.If you see someone doing that, we need to know.

Let experienced officers decide what action to take." 

Other posters target households:

"you see hundreds of houses every day. What if one has unusual activities and seems suspicious"

as well as mobile phone users :

"Thousands of people have mobiles. What if someone with several seems suspicious?"

What's going on in London ? Is the Metropolitan police not busy enough ? did they become completely paranoiac ? or do they need some budget increase ?

Where is this so famous British phlegm ?

As a response, many people have already redesigned the posters to point out the absurdity of them. Some samples are available on BoingBoing.

Saw yesterday night on TV. 

Last Saturday, during powerful storm Emma,  39 years-old Lufthansa pilot attempted to land his Airbus A320 with 131 passengers in Hamburg’s Fuhlsbüttel airport.

Facing winds up to 90 km/h at the moment of the landing,  the left wing grazed the runway for a moment, but the pilot was able to stabilise the aircraft and take off.

The plane landed safely 15 minutes later on its second attempt.

All passengers and crew were unharmed and the aircraft was only slightly damaged. After having its wing tip replaced the A320 was expected to be back in service on Monday. 

Well Done Captain !  

We all know about the most famous Chinese mode of transportation, the bicycle. Indeed with the situation is changing and the bicycle leaves more and more its place to cars & motorbikes. 

I arrived 2 days ago in Kunming, the capital of the Yunnan province. The city is growing and its 6 millions inhabitants add 200 cars on the road every single day. However in a city where a liter of petrol costs 0.50 USD and the monthly salary is less than 100 USD I wonder what is the average yearly mileage of this multitude of vehicle.

What surprised me here is that most scooters in town are electric and this idea should inspire Europe. However I have not seen how they recharge them and if the battery can easily be remove and be charged at home. I'll try to have a deeper look in the coming days .

Specifications are the following

Dimension: 1700*555*1170
N weight/ G weight: 115/136KGS
Max speed: <60Km/h
Battery: 48V/38AH Silicone
Motor Power: 1500W
Load capacity: >85Kg
Brake: Disk brak FR, drum brake RR
Mileage for one charge: 80Km
More info here

Who said that in China there are no efforts made to reduce carbon emissions ? 

I haven't review in details all news from the CES 2008 that closed its doors on Thursday but it seems the Global Energy problem contributes to have better ideas regarding the way we can power our IT stuff.

One company, Green Plug, has identified a significant contributor to the high cost of battery-powered consumer electronics products, wasted energy and unnecessary toxic waste. A typical home or office has a dozen or more power transformers that convert between 90V and 254V wall power to device-specific DC power. Every adapter is physically unique and therefore is thrown away every time a device is replaced.

Green Plug comes with a better idea.

Creating a standardize power supply which can be used by all Green Plug^TM compliant devices utilize uniform cables and connectors; so, you never have to worry about finding the right adapter for your laptop, DV camera, cell phone or power tool.

Let's hope they will be able to convinced enough partners to have a real impact on the market and we'll have soon all our electronic devices using a single and unique type of power supply.

Just after posting the article about new safety measures on US aircraft I found an interesting post on New York Times "Jet Lagged" blog titled "Airport Security Folies"

Here after a short excerpt of Patrick Smith article

" Six years after the terrorist attacks of 2001, airport security remains a theater of the absurd. The changes put in place following the September 11th catastrophe have been drastic, and largely of two kinds: those practical and effective, and those irrational, wasteful and pointless.

The first variety have taken place almost entirely behind the scenes. Explosives scanning for checked luggage, for instance, was long overdue and is perhaps the most welcome addition. Unfortunately, at concourse checkpoints all across America, the madness of passenger screening continues in plain view. It began with pat-downs and the senseless confiscation of pointy objects. Then came the mandatory shoe removal, followed in the summer of 2006 by the prohibition of liquids and gels. We can only imagine what is next…."

Continue reading it on NYT website 

On my own opinion, Airport security today is a mix between relevant and must have security measures on a side but also theatrical, annoying and ridiculous measures. Some of these measures are time consuming, put passengers and crew on their nerves for no safety added value. What does really justify them?

• Government "zero  political risk" (if something happens they will be able to tell that all possible protection measures were already taken) ?
• Fear factor = better military/law enforcement budget ?
• Security private experts / companies have highly increase their financial income since September 2001. They certainly not ready to give this golden egg away.
• Did I speak about million dollars detectors and scanners manipulated by low trained personnel ?    

but do you think air travels are safer to face well prepared, organized and motivated enemies ?

Passengers will no longer be able to pack loose lithium batteries in checked luggage beginning January 1, 2008 as new federal safety rules take effect. The new regulation, designed to reduce the risk of lithium battery fires, will continue to allow lithium batteries in checked baggage if they are installed in electronic devices, or in carry-on baggage if stored in plastic bags.

Common consumer electronics such as travel cameras, cell phones, and most laptop computers are still allowed in carry-on and checked luggage.  However, the rule limits individuals to bringing only two extended-life spare rechargeable lithium batteries, such as laptop and professional audio/video/camera equipment lithium batteries in carry-on baggage

The following quantity limits apply to both your spare and installed batteries. The limits are expressed in grams of “equivalent lithium content.” 8 grams of equivalent lithium content is approximately 100 watt-hours. 25 grams is approximately 300 watt-hours:

• Under the new rules, you can bring batteries with up to 8-gram equivalent lithium content. All lithium ion batteries in cell phones are below 8 gram equivalent lithium content. Nearly all laptop computers also are below this quantity threshold.

• You can also bring up to two spare batteries with an aggregate equivalent lithium content of up to 25 grams, in addition to any batteries that fall below the 8-gram threshold. Examples of two types of lithium ion batteries with equivalent lithium content over 8 grams but below 25 are shown below.
• For a lithium metal battery, whether installed in a device or carried as a spare, the limit on lithium content is 2 grams of lithium metal per battery.
• Almost all consumer-type lithium metal batteries are below 2 grams of lithium metal. But if you are unsure, contact the manufacturer!

Indeed this regulation will first be applicable on US registered aircrafts but as usual we may see this new regulation applicable on all International flights. 

Usually all electrical devices, including batteries, are subject to safety certification so either their are considered to be safe or manufacturer has to review quality and safety of its products. 

I really wonder on which basis these new rules are made from. Did anyone saw any incident statistics, reports etc.. (apart Sony made laptop batteries) or is it just one additional constraints air travel passengers will have to deal with.

After lighters and matches in 06, liquids in 07, 08 will add batteries to the restriction list.

All details are here as well as the complete list of items with air travel restrictions

Toshiba will soon start production of 2 new interesting products which may find their way into future mobile/portable devices.

First are the new SATA SSD (Solid State Drive) drives on 1.8' and 2.5' formats. According Engadget 32, 64 and 128 GB will be available. Speed announced is read 100 MB/s while reading and 40 MB/sec writting.

With such capacity, traditional mechanical hard disk will slowly disappear from portable devices. With no moving parts, a solid state drive largely eliminates seek time, latency and other electro-mechanical delays and failures associated with a conventional hard disk drive.

The second interesting product announced by Toshiba is the so called "Super Charge ion Battery" (SCiB) which is at this stage not intended for portable devices but for industrial systems and electric vehicles.

SCiB Major Characteristics

• Safety : SCiB adopts a new negative-electrode material that offers a high level of thermal stability and a high flash point electrolyte. Its structure is resistant to internal short circuiting and thermal runaway

• Long-life cycle : Capacity loss after 3,000 cycles of rapid charge and discharge is less than 10%. SCiB batteries are able to repeat the charge-discharge cycle over 5,000 times which is equivalent to more than 10 years with a once-a-day recharge-discharge cycle.
• Rapidly rechargeable : Safety characteristics of SCiB allow recharge with a current as large as 50 amperes (A), allowing the SCiB Cell and SCiB Standard Module to recharge to 90% of full capacity in only five minutes.
• High power (practical capacity) : The SCiB has an input-output performance equivalent to that of an electric double layer capacitor.
• Temperature : Extreme temperatures supported with sufficient discharge at temperatures as low as -30°C.

SCiB batteries will first be available on the market in March 2008 with the following specifications:

• Nominal voltage  : 24VDC
• Nominal capacity : 4.2 Ah
• Size : 10x30x5 cm
• Weight : 2 kg

Perhaps these batteries will also find other field of application,  but for portable devices they will need to become lighter and slimmer..but batteries that get charges in  five minutes are definitively very attractive for mobile users. 

What do you think ?  

Sources: Engadget Toshiba 

British secret services MI5 warned UK businesses about Chinese hackers.

MI5 director-general wrote to 300 UK firms including Banks and law firms to warn them about "electronic espionage attacks" conducted by "Chinese state organizations".

IT Security company Sophos reports that 30 per cent of malware are "made in China". Trojan horses are designed to rob login credentials of anything including email and games. 

China's People's Liberation Army (PLA) was already blamed in September 2007 for attacking governments computers of France, Germany, New Zealand, Australia and United States, including Pentagon systems.

Trojan horses often target computers with unpatched vulnerabilities and without proper level of security deployed.  

The Chinese government has denied any involvement in the attacks and pointed its finger to unidentified hackers.

The question is now to discover if malware "made in China" are really powerful and smart of if attacked computers were the result of a serious lack of security and preventive protection measures.

Source: The Register 

Since, mid-2006 mobile phones with a built-in 3 MP camera and optical zoon are available on the market and already represent an alternative to low end digital camera. More than 70 models are available today with a 3 to 5 MP resolution. One of the first phone with a "real camera" was the famous one Nokia N93 and its Carl Zeiss Optics.

Samsung is now putting even more pressure on camera makers with the soon release (first on European market) of its G800. A 5 MP digital camera with 3x optical zoom into mobile phone… or is it the opposite? 

The specifications are rather attractive:

• Quad bands (900 / 1800 / 1900 / 2100  )
• Data network HSDPA 7.2 Mbps
• 2.4 inches TFT display with 256K colors
• Size 101x52x19mm for 129 gr (25% lighter than the Nokia N93)
• Standby 220 hours, talk time 3.5 hours.
• Memory 160 MB + MicroSD slot
• Document views (Office, PPT, PDF,)
• Email (POP3, IMAP), SMS, MMS,
• Connectivity: Bluetooth, USB 2.0, PCSync, OutlookSync, etc..
• FM Receiver, Java embedded, MP3, etc..

and indeed the built-in camera:

• 5 Mio Pixel
• 2592х1944 pixels
• autofocus
• video recording mode: MPEG4, 3GPP, H.263, H.264
• xenon flash
• 3x optical zoom /4x digital
• 4 shot modes
• 4 quality settings
• brightness adjustment

 All other specs are here

The big plus is definitively the 3x optical zoom which makes the difference with other 5 MP phones.  The resolution race continues as Samsung (them again) Electro-Mechanics announced on November 15th that 8 MP camera phones may be available by next summer following the successful development of a 10.5 x 11.5 x 9.4mm 8 megapixel CMOS censor.

Will camera makers develop new "point and shoot" camera with built-in phones  and multimedia facilities such MP3 player and FM receiver ?

I'm impatient to have one "box" less to carry when traveling…

What will you drop first ? your camera or your phone ?