Saturday, October 14, 2006

The next step in our cyborg future: thought-controlled bionic arms

Claudia Mitchell, a former US Marine, lost her left arm in a motorcycle accident in 2004. Today, she is a cyborg, fitted with a Bionic Arm developed by the Rehabilitation Institute of Chicago. The Bionic Arm is a bleeding-edge technology- a mind controlled prosthesis, the first of its kind. It will allow amputees to lead richer, fuller lives than they could with previously available prostheses.

As with many state-of-the-art research efforts, the bionic arm is strongly linked to the military- part of a multi-lab effort funded by $50 million from the Defense Advanced Research Projects Agency (DARPA). According to the Washington Post, as of July, 411 members of the (US) military serving in Iraq, and 37 in Afghanistan, have suffered wounds requiring amputation of at least one limb (no word on how many lost arms specifically). These men and women will be next in line to be fitted with Bionic Arms.

It is surely heartening to see military-developed technology alleviate, instead of cause, suffering, but a horrible possibility comes to mind of where this all might lead. Future advances in prosthetic technology might conceivably yield bionic limbs that are as good as, if not better, than natural human limbs. Imagine a war where soldiers lose limbs, only to go back into battle with new ones. The human body become expendable war expenditure.

Of course, this is worst-case scenario that is unlikely to come about anytime soon- it will take years for prosthetic technology to reach that point, and when it does, such artificial limbs will be very expensive indeed. The Bionic Arm itself costs between $60,000 to $75,000. This leads us to the grimmer reality- while US citizens can enjoy the fruits of such technology, who will provide Bionic Arms for the thousands of poor civilians in Iraq, Afghanistan and Vietnam (amongst other countries) who have lost their limbs to conflict? Where is their cyborg future? Perhaps it is overly-idealistic for me to say so, but I believe that they have an equal right to such technology as much as any soldier from a first-world nation.

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Sunday, October 08, 2006

Mars Rover Opportunity at Victoria Crater


HiRISE image of Victoria Crater

The Mars Rover Opportunity (whose exploits, along with that of it's twin, Spirit, I highlighted in this post back in March) is now exploring the 800-meter wide Victoria Crater- the largest crater that either of the Rovers has yet encountered. Opportunity has now been operating for over 960 days; 10 times it's expected lifetime! The Rover is now exploring the rim of the crater and will then descend into the crater itself, guided by the high-resolution images of Victoria Crater taken by the High Resolution Imaging Science Experiment (or HiRISE) on the Mars Reconnaissance Orbiter satellite. The combination of images from the Rover and the Orbiter are providing NASA with a wealth of scientific data on Victoria, which should reveal much about Mars' environmental history.

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Saturday, October 07, 2006

Haze woes

Singapore appears to be blanketed in haze today. It hangs low over the air like a malignant mist and it's smell permeates everything, even worming its way into my house (til I closed all the windows and turned on the aircon, anyway). The National Environment Agency website confirm my suspicions- the air quality here is at 'unhealthy levels' and the PSI reading actually went up to 130 at 10 am this morning. It's 1997 all over again.

Malaysian Deputy Prime Minister, Datuk Seri Najib Tun Razak, spoke out on the need for ASEAN to set up a haze fund, citing the fact that Indonesia lacks needed resources, and the costliness of the kind of tools that would be needed to put out large-scale forest fires. Beyond dealing with the fires as they occur, something really needs to be done about their (human) root causes as well (granted, some of the fires probably start by themselves, but I'm guessing not all- or even most).

I really hope that the governments of this region won't just forget all about the haze situation, and the out of control forest fires in Indonesia that cause it, as soon as the air quality clears up; else we can look forward to reliving this year after year for the forseeable future. Though given their track record to date, perhaps I should just invest in a filter mask.

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Thursday, October 05, 2006

V.S. Ramachandran on the evolution of consciousness

"What is consciousness? This really breaks down into two questions: The first is the nature of qualia--how does the awareness of sensations like bitter, or painful, or red arise from the activity of neurons? The second: How does the sense of self—the person who experiences qualia—arise?"
Esteemed neurologist V.S. Ramachandran suggests what the answers to these questions might be in this brief article for the excellent Seed Magazine.

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Jon Stewart on Habeas Corpus

The United States Senate has passed a bill that will deny suspected terrorists the right of habeas corpus (aka the right to seek release from unlawful imprisonment). Here's what comedian Jon Stewart has to say about all this, along with an educational (:p) look at the English justice system 900 years ago:



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Monday, October 02, 2006

George Orwell on writing

1. Never use a metaphor, simile, or other figure of speech which you are used to seeing in print.
2. Never us a long word where a short one will do.
3. If it is possible to cut a word out, always cut it out.
4. Never use the passive where you can use the active.
5. Never use a foreign phrase, a scientific word, or a jargon word if you can think of an everyday English equivalent.
6. Break any of these rules sooner than say anything outright barbarous.
"Politics and the English Language", George Orwell.

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