[TheForge] nukkin' skeeters OTOTOT
Peter Fels & Phoebe Palmer
artgawk at thegrid.net
Sun Mar 15 03:35:44 EDT 2009
Some good may come of "Starwars" after all. pf
Schade wrote:
> Rocket Scientists Shoot Down Mosquitoes With LasersHumans, Butterflies
> Remain Unharmed; The 'Star Wars' Connection
> By ROBERT A. GUTH
> BELLEVUE, Wash. -- A quarter-century ago, American rocket scientists
> proposed the "Star Wars" defense system to knock Soviet missiles from
> the skies with laser beams. Some of the same scientists are now aiming
> their lasers at another airborne threat: the mosquito.
>
> In a lab in this Seattle suburb, researchers in long white coats
> recently stood watching a small glass box of bugs. Every few seconds,
> a contraption 100 feet away shot a beam that hit the buzzing
> mosquitoes, one by one, with a spot of red light.
>
> The insects survived this particular test, which used a non-lethal
> laser. But if these researchers have their way, the Cold War missile-
> defense strategy will be reborn as a WMD: Weapon of Mosquito
> Destruction.
>
> "We'd be delighted if we destabilize the human-mosquito balance of
> power," says Jordin Kare, an astrophysicist who once worked at the
> Lawrence Livermore National Laboratory, the birthplace of some of the
> deadliest weapons known to man. More recently he worked on the
> mosquito laser, built from parts bought on eBay.
>
> The scientists' actual target is malaria, which is caused by a
> parasite transmitted when certain mosquitoes bite people. Ended in the
> U.S. decades ago, malaria remains a major global public-health threat,
> killing about 1 million people annually.
>
> Efforts to eradicate the disease languished for years until recently.
>
> Big-money donors like Bill Gates, the United Nations, the U.K. and non-
> profit such as Malaria No More re-launched the war on malaria,
> devoting billions of dollars to vaccines, methods of prevention and
> novel ways to kill mosquitoes.
>
> "You can say we are very lucky -- the right place at the right time,"
> says astrophysicist Szabolcs Márka, a Columbia University specialist
> in black holes. He has a grant to develop a "mosquito flashlight"
> designed to knock out the bugs' eye-like sensors.
>
> Scientists around the world are testing ways of thwarting mosquitoes
> with microwaves, rancid odors, poisoned blood and other weapons that
> disrupt the sense of sight, smell and heat mosquitoes use to find
> their prey.
>
> There's work on genetically altering a bacterium to infect and kill a
> mosquito, and a project to build a malaria-free mosquito genetically
> enhanced to overtake the natural kind.
>
> There's also a researcher in Japan who thinks mosquitoes can be a
> force for good. He is working on transforming them into "flying
> syringes" that deliver vaccines with every bite.
>
> The mosquito laser is the brainchild of Lowell Wood, an astrophysicist
> who worked with Edward Teller, father of the hydrogen bomb and
> architect of the original plan to use lasers to shield America from
> the rain of Soviet nuclear arms.
>
> President Ronald Reagan embraced the idea in the 1980s, dubbing it the
> Strategic Defense Initiative.
>
> Senator Edward Kennedy mocked it as "Star Wars." Eventually it became
> a footnote in history.
>
> Its rebirth as a bug killer came thanks to Nathan Myhrvold, a former
> Microsoft Corp. executive who now runs Intellectual Ventures LLC., a
> company that collects patents and funds inventions. His old boss, Mr.
> Gates, had asked him to explore new ways of combating malaria. At a
> brainstorming session in 2007, Dr. Wood, the Star Wars architect,
> suggested using lasers on mosquitoes.
>
> Soon Dr. Wood, Dr. Kare and another Star Wars scientist teamed with an
> entomologist with a Ph.D in mosquito behavior and other experts. They
> killed their first mosquito with a hand-held laser in early 2008.
>
> "We like to think back then we made some contribution to the ending of
> the Cold War" with the Star Wars program, Dr. Kare says. "Now we're
> just trying to make a dent in a war that's actually gone on a lot
> longer and claimed a lot more lives."
>
> The scientists envision their technology might one day be used to draw
> a laser barrier around a house or village that could kill or blind the
> bugs. Or, laser-equipped drone aircraft could track bugs by radar,
> sweeping the sky with death-dealing photons.
>
> They now face one big challenge: deciding how strong to make the
> weapon. The laser has to be weak enough to not harm humans and smart
> enough to avoid hitting useful bugs. "You could kill billions of
> mosquitoes a night, and you could do so without harming butterflies,"
> says Mr. Myhrvold.
>
> Demonstrating the technology recently, Dr. Kare, Mr. Myhrvold and
> other researchers stood below a small shelf mounted on the wall about
> 10 feet off the ground. On the shelf were five Maglite flashlights, a
> zoom lens from a 35mm camera, and the laser itself -- a little black
> box with an assortment of small lenses and mirrors. On the floor below
> sat a Dell personal computer that is the laser's brain.
>
> The glass box of mosquitoes across the room is an old 10-gallon fish
> tank. Each time a beam strikes a bug, the computer makes a gunshot
> sound to signal a direct hit.
>
> To locate individual mosquitoes, light from the flashlights hits the
> tank across the room, creating tiny mosquito silhouettes on reflective
> material behind it. The zoom lens picks up the shadows and feeds the
> data to the computer, which controls the laser and fires it at the bug.
>
> In a video, researchers showed what happens when they deploy deadly
> rays.
>
> A mosquito hovers into view. Suddenly, it bursts into flame. A thin
> plume of smoke rises as the mosquito falls. At the bottom of the
> screen, the carcass smolders.
>
> There's ready supply of fresh recruits nearby, where an intern feeds a
> saucer of goat blood to a colony ofanopheles stephensi, one species of
> mosquito that transmits malaria.
>
> Not only can the laser target a mosquito, it can also tell a male from
> a female based on wing-beat.
>
> That's a crucial distinction, since only females feed on blood and
> thus transmit disease. Males in the wild eat sugary plant nectar. (In
> the lab they get raisins.)
>
> "If you really were a purist, you could only kill the females, not the
> males," Mr. Myhrvold says. But since they're mosquitoes, he says,
> he'll probably "just slay them all."
>
> Write to Robert A. Guth at rob.guth at wsj.com
>
> Printed in The Wall Street Journal, page A1
>
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