Slashdot Mirror


US Army to Test Laser Based Mine Clearing Device

QueueEhGuy writes "Yahoo News is running a Reuters story indicating that the United States will soon be testing a laser which "will either explode or evaporate the explosives in the device which can be up to 250 yards away.." It's about time, I was starting to think that we'd never blow stuff up with light." New Scientist has another story, complete with nifty graphic. The Zeus homepage has a few pictures and specs.

15 of 290 comments (clear)

  1. Not for de-mining during peacetime by quasi_steller · · Score: 5, Insightful

    I'ts really too bad that this unit isn't for de-mining during peacetime. There are many countries that are covered with mines from past wars (just think of some eastern European countries and African countries). Too many civilians die each year from old mines. Oh well, this is good news non the less as it will help save lives.

    --
    ...interesting if true.
    1. Re:Not for de-mining during peacetime by Bradlegar+the+Hobbit · · Score: 2, Insightful

      It's not the deaths that are the problem ... most mines are designed to injure and permanently maim people. In the end, looking after someone who has lost one or two legs is a lot more expensive than burying a body.

      --

      I haven't lost my mind; it's backed up on a CD-R somewhere
    2. Re:Not for de-mining during peacetime by mesocyclone · · Score: 3, Insightful

      We were able to ban the use of poison gas after World War I, and Western nations have not used it since. Poison gas kills indiscriminantly, without regard for civilian or military status, and it is a very unpleasant way to die. Civlized nations decided that even in war, there are rules. The USA, of course, has more chemical and biological weapons than any other country on earth...

      Any proof for this offensive assertion??

      The USSR had by far the most chemical and bioweapons of any nation, and was producing them into the nineties.

      The US, unlike the USSR, did away with it's chemical and biological weapons after it signed the treaty.

      Mines are a problem. The US is working on mines which self-degrade.

      But the real problem is the countries which ignore civilized rules. Countries like Iraq, which produced large amounts of biological and chemical weapons, and used them in spite of treaties.

      Treaties are nice when you are dealing with nice people.

      They don't work worth a darn when your opponents are monsters.

      --

      The only good weather is bad weather.

  2. Kind of cool- by stoolpigeon · · Score: 2, Insightful

    but not as cool as if it took out buried mines as well. Seems as if the best use of this thing would be cleaning up the more 'obvious' stuff lying about. Unexploded bombs, etc. Not much for getting mines.

    Of course the real problem w/mines all over the world is a social one as opposed to a technical problem. Too many little wars for territorial control being waged by people w/little regard for the welfare of others.

    There's profit in it though so I don't expect it to change.

    .

    --
    It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
  3. Re:dumb question by Alsee · · Score: 4, Insightful

    How are they going to power the thing?

    Just use a souped up alternator and the engine make a good generator.

    -

    --
    - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  4. hate to sound like a republican.... by Veramocor · · Score: 2, Insightful

    but there are only 2 places where the US uses land mines, Cuba and Korea.

    In korea these land mines are in a strip of land separating North and south korea. These mines help protect our soldiers. And no one lives in the DMZ so its not dangerous to civilians. While 30,000 soldiers may sound like a lot, remeber that the korean war was basically a draw because how many koreas/chines got killed they were able to send more.

    So before we go signing any treaties lets be clear what we are risking.

    --
    Veramocor
  5. Re:look at the other point by doubtless · · Score: 4, Insightful

    how about we actually build something that gets rid of land mines?

    And how about we actually stop building mines? Not exactly a chicken and egg problem, is it?

    --
    geek page at KY speaks
  6. Re:look at the other point by Anonymous Coward · · Score: 1, Insightful

    don't harm anyone unless a 12-year old digs up an unexploded mines

    Oops, typo, hit submit too early it seems. That sentence should have been "don't harm anyone unless a 12-year old digs up an unexploded mine, eats the electronics, and gets lead poisoning". I was trying to make a weak joke. The point should be that the land mines aren't a risk to 12-year-olds digging them up unless the battery leaks or something.

    I guess this is something i shouldn't be making jokes about anyway. Sorry.

  7. US Landmine placement by Wyatt+Earp · · Score: 2, Insightful

    Without looking on the internet...

    Of the 80 million mines, I'll guestimate that the US placed em in...

    Korea (Still in use on the DMZ)
    Vietnam (Many of the "mines" are prbly unexploded munitions)
    Honduras

    At the most, 2-4 million

    http://www.state.gov/www/global/arms/rpt_9809_de mi ne_toc.html

    Angola - That'd be South Africa and Cuba along with Rebels
    Eritrea - Somalia
    Mozambique - Rebels and the government
    Namibia - South Africa and Marxist rebels
    Somalia - Somalia during the civil war with Eritrea
    Sudan - Civil War, border with Egypt
    Afghanistan - Soviets
    Cambodia - US, Vietnam, China, Cambodia, rebels
    Bosnia - Serbia and the Civil War
    Croatia - Serbia, Yugoslavia, Croatia
    Nicaragua - The US and the local government
    Iraq - Iraq, the Kurds, Iran.

    So out of the 53 million estimated, the US might be responsable for a piece of the Cambodia and Afghan problem. The US wasn't big into dumb mines other than Claymore after the Korean War ended, except in Korea due to the problems with fratricide and killing civillians.

  8. White Elephants! by sam_handelman · · Score: 4, Insightful

    With Lasers on their heads!

    (incidentally, a "White Elepehant" is an expensive, useless project.)

    Why detonate a land mine with another explosive when you can use a laser! Lasers work nearly as well, and are merely many hundreds of times more expensive!

    From the article: the operator will then switch on the main beam which will either explode or evaporate the explosives

    Quick physics lesson. The explosive force of a conventional explosive is provided by the change-of-state to a gas. Air has a density of roughly 1 kg/cubic m. Most solids and liquids have a density of 1g/cubic cm, or 1000 kg/cubic m. So, when you vaporise something, you get a lump of gas which is compressed roughly 1000-fold.

    The upshot? Vaporising the explosive = setting the explosive off! There is no way prevent landmines from detonating by vaporising them; they won't turn into harmless little poofs, they'll fucking explode. Unless they propose that this laser vaporises the landmine slowly/gently - which is patently absurd. So, you might as well set them off with a grenade.

    Somebody with friends in the defense establishment has developed yet another practical (which does not mean useful or advisable, and certainly doesn't mean cost-effective) laser system, and they're trying to find some excuse to sell it.

    This thing looks like the Crusader look like a good use of taxpayer money.

    --
    The good and new comes from no quarter where it is looked for, and is always something different from what is expected.
  9. Re:look at the other point by Tackhead · · Score: 5, Insightful
    > And how about we actually stop building mines? Not exactly a chicken and egg problem, is it?

    I tried not to turn this into a gun control thread, honest. But you've forced my hand.

    Let's start with the words-on-paper about guns in Washington, DC, New York City, NY, and Los Angeles, CA. These cities had a problem with their citizens - they liked to shoot guns at one another. (Well, usually only one side was shooting, and nobody was shooting back.) So we put words on paper that say "You can't have guns, and especially not in these cities".

    Words on pieces of paper about land mines will probably be every bit as effective at convincing the leaders of Angola, Eritrea, Somalia, Sudan, Mozambique, Bosnia, and Iraq to stop killing people with land mines.

    Perhaps you're right - and shortly after their success in convincing great humanitarians like Slobodan Milosevic and Saddam Hussein to stop using land mines, the UN passes a resolution that says people blowing themselves up at bus stops and discotheques is Not A Nice Thing Either. Yasser Arafat and the rest of his organization will all stand around a campfire singing "Kumbayah" as doves fly out of their asses.

    But I'm not gonna hold my breath.

  10. Re:look at the other point by Anonymous Coward · · Score: 1, Insightful

    Words on pieces of paper about land mines will probably be every bit as effective at convincing the leaders of Angola, Eritrea, Somalia, Sudan, Mozambique, Bosnia, and Iraq to stop killing people with land mines.

    So we should accept that the lowest most ruthless countries totally determine how we will fight wars? Iraq used poison gas, so the US should use poison gas too? Serbia took people in large groups and shot them down. Should we should do that too?

    If a country cannot set limits on acceptable behavior, they are not a strong country. I don't see anyone in your above list as a world power.

    This is the part that really pisses me off about the US government, and G Bush in particular, they believe in rules, except we applies to themselves, they always are looking for exceptions for then.

  11. Re:look at the other point by Waffle+Iron · · Score: 3, Insightful
    Well, not to soil this discussion with any facts, but military minefields are not repeat not intended to kill the enemy. They are meant to deny territory.

    Unfortunately, many minefields continue to "deny territory" to the people who live there decades after the conflict has ended. The territory is often denied by killing or maiming their curious kids.

    Not to worry, though. The mines weren't -- repeat weren't -- intended to hurt anybody.

  12. Stop trolling, look at the facts by WIAKywbfatw · · Score: 5, Insightful

    Stop trolling and look at the facts.

    Fact: The vast majority of people hurt by landmines are non-combatants.

    In most cases, these innocent civilians are maimed or killed long after the fighting has stopped.

    Fact: Landmines are the only battlefield munition that is incapable of distinguishing between friend, foe and/or innocents.

    Landmines don't care who they kill. And, once they've been planted, all control over who the mines target is left to chance.

    Fact: The majority of landmines are not safely removed after their ostensible purpose has been achieved.

    Only rarely does the combatant responsible for laying the mines remove them - in most cases that's one buck that's passed onto someone else. And in all cases, the cost of safely removing a mine far outstrips the cost of laying it.

    Fact: The US is the only western power that refuses to rule out the future use of anti-personnel landmines and, because of this US stance many third-world nations also refuse to stop using these munitions.

    It's widely accepted that the pro-landmine position of the US is hampering worldwide efforts to curb the sale and use of anti-personnel landmines. Basically, lots of countries take the position that "if the US, that bastion of human rights, won't give them up then why should we?"

    And, honestly, if your own government won't make that kind of commitment, the kind of commitment that every other NATO member has willingly made, then why should you expect others to do so?

    Ask yourself this: How much would the combat effectiveness of the US military, the world's most powerful, most technologically advanced, fighting force be diminished if it didn't use anti-personnel landmines? I think you know the answer

    It's all very well for you to say that words often don't mean a thing - thanks for pointing out the obvious - but your clear implication is that the American position on landmines is right. Well, frankly, you couldn't be further from the truth.

    Sometimes, to achieve the results you want you have to lead by example. The US could join the majority of the free world and stop using these indiscriminate killing machines. It chooses not to. And as a result, directly and indirectly, thousands of people worldwide suffer, and will continue to suffer for the foreseeable future. Way to go USA.

    I find it laughable that you even attempt to raise the issue of gun control here. Well, that's a big can of worms but I doubt that even the most liberal individual would equate the right to bear arms with the right to leave killing devices randomly scattered around.

    Lastly, I think it's wrong of you to suggest that blowing up innocent people in bus stops and discotheques is wrong (which of course it is) while neglecting to mention that blowing them up from the comfort of your M1 tank, Apache helicopter or F-16 fighter (as has happened recently in both Palestine and Afghanistan, courtesy of Israel and the US*) is equally morally reprehensible. There are always two sides to every story and the side with the Stars and Stripes on their banner isn't always right.

    (Moderators, before you mod this down as a troll, re-read what I've written. It's on-topic honest, accurate and far more balanced than the parent comment.)

    (*These aren't isolated incidents, these are just examples. It's always nice to know that your taxes help to kill innocent men, women and children. It's even nicer to know that when it happens, nobody is ever held accountable.)

    --

    "Accept that some days you are the pigeon, and some days you are the statue." - David Brent, Wernham Hogg
    1. Re:Stop trolling, look at the facts by mpe · · Score: 3, Insightful

      Landmines are the only battlefield munition that is incapable of distinguishing between friend, foe and/or innocents.

      Munitions arn't sentient, any munition left laying around after the war has ended is a danger. Thing with land mines is that they tend to be frequently left laying around and are concealed in the first place. Unexploded bombs and shells tend to be either obvious on the surface or burried deeply so that the are not a danger to most people (except construction workers).