Tag Archives: EOD

DARPA attempts to synthesize canine nose

[singlepic=167,320,240,,left] Sharon Weinberger reports at Danger Room that DARPA is attempting to synthesize or simulate the canine nose. We understand that it certain circumstances call for miniaturization – concealment, portability and risk limitation all make dog-and-handler teams, plus their needed transportation and support, relatively unwieldy. We’re reminded of General Patton’s admonition that “A good solution applied with vigor now is better than a perfect solution applied ten minutes later.” We can have new human/canine teams ready to go in a matter of months, depending on the particular specialty (debris search, explosives search, general guard work). In addition to time spent raising and selecting canine candidates.

In the long run – a successful simulation of canine olfactory capability – would do very well at airports, and other security bottlenecks. But let’s not plan around having this capability any time soon. Let’s plan around technologies in hand. As someone who has to cop to liking Star Trek quite a lot, I still had problems every time the Enterprise

(or Voyager, etc.) crew made a big scientific or engineering breakthrough on the fly – in hours or minutes, without experimentation, getting it right the first time. Technology takes false turns, rethinking, and redesign.

Link to the excellent Sharon Weinberger’s piece on DARPA and dog noses at Danger Room. (and thanks to Sharon for giving us an excuse to post the cute dog photo).

Land mine detection via plants – from GoodMagazine.com

GoodMagazine reports that that Denmark-based ARESA has conducted successful field tests with its genetically modified Thale Cress, for use in land mine detection.

Thale Cress, also known as Arabidopsis thaliana, commonly called arabidopsis, or mouse-ear cress, has a short life cycle – six weeks from germination to mature seed.The ARESA modified Thale Cress is very sensitive to nitrogen, which is a component of the explosives in land mines, and emitted in tiny amounts.

thales-cress-photo-credi-goodmagazinecom.gif

Photo (Aresa) by Henrik Freek; via GoodMagazine.

The Thale Cress

has been genetically modified to provide a natural warning in the presence of land mines. Thales cress is inherently sensitive to nitrogen dioxide, a chemical byproduct of land mines. The Copenhagen-based biotech company Aresa tweaked the weed’s genes so that its leaves would turn from their natural green to bright red in the presence of latent explosives. Field tests have thus far been successful, meaning traditional methods of human and canine mine detection may soon have a less dangerous alternative.

From Ben Jervey’s post in Good Magazine .While there are good reasons to have reservations about the genetic modification of plants, until and unless the powers that have been responsible for placing land mines start removing them, this seems an excellent technology.

Ben Jervey is also the editor of GreenAppleGuide

.