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High-Altitude 'Security Blimps' Coming Soon

quackking writes "The AP is reporting (in New York Newsday) that the Georgia Tech spinoff company TechSphere has sold their concept of immense (300 foot diameter), high altitude spherical surveillance blimps to the honchos at Fort Benning, GA, and production is beginning now! (more here.) These things are as big as a 30-story building. Meanwhile Lockheed-Martin is working on gigantic 500-foot long robot blimps, (and more here.) This would be 25 times the size of the well-known Goodyear blimp. Says Mayor Don Plusquellic, 'For Akron, it's a very emotional thing.'"

72 of 378 comments (clear)

  1. wee! More cash for armament. by Anonymous Coward · · Score: 5, Funny


    "Our Proud & Patriotic Security Blimps will roam the country in Freedom Flotillas keeping evildoers at bay."

    - John Ashcroft

    1. Re:wee! More cash for armament. by reallocate · · Score: 3, Funny

      "Greetings from Just About Everywhere Else -- the Den of Complacency. Where we live by the motto -- Peace through inferior fortitude"

      --
      -- Slashdot: When Public Access TV Says "No"
  2. Yeah, um by Anonymous Coward · · Score: 3, Funny

    In America, You watch Good Year Security Blimp!

    1. Re:Yeah, um by dasmegabyte · · Score: 2, Funny

      Good Year? No, the worst.

      Vote for Kerry.

      --
      Hey freaks: now you're ju
  3. Bummer. by Anonymous Coward · · Score: 3, Funny

    Security Blimps? And here I thought they were going to use the blimps to display something like: "Run Windows Update, People Who Own Spam-Bot Zombie Computers!"

    1. Re:Bummer. by Anonymous Coward · · Score: 5, Funny

      "Tired of our dreary, repressive society?
      Start an exciting new life on the outer planets!"

    2. Re:Bummer. by John+Biggabooty · · Score: 5, Funny

      If those lighted messages on these security blimps were done with light-emitting diodes, could you call one a Led Zeppelin?

      --
      That's Bigboo TAY! TAY!
  4. Bounce wireless off big brother... by KodaK · · Score: 5, Interesting

    Hey, fine. As long as we get to put an antenna on it and use it for wireless access.

    --
    --J(K) DOS is like Unix in exactly the same way that a pinto is like an aircraft carrier.
    1. Re:Bounce wireless off big brother... by bplipschitz · · Score: 4, Interesting

      Hey, fine. As long as we get to put an antenna on it and use it for wireless access.

      Hey, if it has an aluminized skin [or mylar or similar], you won't *need* an aerial to bounce signals off of it. Use your Pringles Can aerial, aim at blimp, and they bounce right off.

    2. Re:Bounce wireless off big brother... by The_Mystic_For_Real · · Score: 5, Insightful

      In the article it says that they will be used by the telecommunications industry. It does not specify what they will be used for but it states that the key ability involved is the ability to remain over one spot. I would imagine they could use it as a temporary transmiter in areas that have lost wireless communications services.

      --

      _____

      Thank you.

    3. Re:Bounce wireless off big brother... by drinkypoo · · Score: 2, Interesting

      They already have trailer-mounted portable cell sites. There is no need to use blimps, you can just tow them in behind a truck. They use them for major construction projects which encompass large areas.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  5. Techology has gone full circle by StateOfTheUnion · · Score: 5, Insightful

    Weren't surveillance blimps all the rage during WW-I ? . . . Nearly a century later and we've gone full circle . . .

    1. Re:Techology has gone full circle by AKAImBatman · · Score: 4, Interesting

      They were Zeppelins/Dirigibles. To be perfectly honest, I don't understand why they're trying to build giant balloons instead of rigid airships. Rigid airships are easier to engineer, have better compartmentalizing/redundancy, and can be easily built to massive proportions. Instead we'd rather have a single inflatable bag the size of the Empire State Building.

      Am I the only one who's a little surprised by their choice?

    2. Re:Techology has gone full circle by Anonymous Coward · · Score: 5, Informative
      And IIRC Japan used fire-balloons against Hawaii?

      No, not just against Hawaii. They sent hundreds (or thousands?) of hydrogen balloons, to which they had attached simple fire bomb(s) towards mainland US. Intention was to try to start forest firest and other damages, and in general create terror in civilian population (ie. demoralize enemy). There was a very interesting documentary about that campaign; campaign itself was VERY top secret during WWII (esp. on US side). For once censorship did succeed; it (lack of news related to balloons) convinced japanese that plan wasn't working. Too bad there were actual casualties -- in couple of cases kids died when they went to look into funny balloons drifting in places like Montana and Wyoming. :-/

      Wish I had link; I think you should find link to it from some PBS web site. There was also a map that had locations of every known instance of such a balloon found... and there were quite a few pins on it.

    3. Re:Techology has gone full circle by Dr+Caleb · · Score: 5, Informative
      One Japanese balloon landed in Oregon, killing 2 people. The only casualties by Japan in the continental US during WWII.

      --
      "History doesn't repeat itself, but it does rhyme." Mark Twain
    4. Re:Techology has gone full circle by meburke · · Score: 2, Interesting

      Yes, there were observation blimps as far back as the American Civil War.

      I think this technology is under-utilized. A friend of mine from Alaska bid to provide materials for the Trans-Alaska Gas pipeline and crane services by using blimps. He felt he could cut millions off the estimated bill and eliminate the need for a truck road by using blimps. Needless to say, no visionaries were on the bid committee.

      Blimps should be ideal for overland hauling, and they could make a great platform for cranes in many instances.

      R. Buckminster Fuller found that using a vacuum-filled strut in his tensegrity domes would make them air-buoyant. The struts "displaced" a volume of air, and enough struts made the whole structure buoyant. I think the University of Minnesota was building a 33-foot tensegrity dome from hollw firberglass struts and it started floating about two-thirds through the construction. Fuller envisioned whole neighborhoods and possibly towns floating around and tethered to the ground. Wanna live in blimp?

      As I understand it, one minor problem with blimps is containing the Helium used to fill it. The molecules are so small they eventually pass through most materials. Is "need more Helium" another argument for developing workable cold fusion?

      MIke

      --
      "The mind works quicker than you think!"
    5. Re:Techology has gone full circle by jasoncart · · Score: 5, Informative

      6 people according to this source.

    6. Re:Techology has gone full circle by Mikkeles · · Score: 3, Informative

      Actually, hot air balloons were used as far back as the US civil war. (Sites include photos).

      --
      Great minds think alike; fools seldom differ.
    7. Re:Techology has gone full circle by Slack3r78 · · Score: 4, Informative

      I live in Columbus, GA, which is basically the city Ft. Benning is located directly next to. Benning kids go to Columbus schools, I have many friends that live on post, etc.

      A little background - Ft. Benning is the largest permanent military installation anywhere in the world, taking up a full Georgia county. It's the home of the Infantry, and if you know anyone who's gone through jump training, regardless of branch of the military, they probably came through Benning. The place is huge, and is covered with trees, the majority of the land being undeveloped and used for firing ranges, survival training, etc.

      I can see why they'd be interested in something like this; Benning is literally just too big to be fenced in like most military bases in this country. Depending on how much this costs to operate, it could be a very efficient way to keep the base at least a little bit more secure, which I see as a good thing.

      Just thought I'd chip in with a local perspective. :)

    8. Re:Techology has gone full circle by ckaminski · · Score: 2, Interesting

      Most people don't know this, but 5 U2's had virtual OWNERSHIP of the east coast of the United states for about 6 days. I know one sits off RI which I hope to dive this summer (if the grave robbers haven't gotten it banned). Another one, IIRC sits off the coast of New Jersey, after terrorizing NYC shipping for several days.

      From what I understand, these attacks came shortly before Germany surrended, but my failing memory isn't 100% on it.

    9. Re:Techology has gone full circle by QuantumRiff · · Score: 3, Informative
      Actually, it was 4 or 6, the memorial plaque is about 5 miles from here (Klamath Falls, OR, the land that god forgot!), in a park up in the woods. There are aparently still some nasty gashes in the big tree from the shrapnel. A family went out for a picnic, and the kids found something neat, and playing with it caused it to go off.

      Keep in mind that thousands of these were launched, and only a few hundred were found, many of them are probably still sitting around on the west coast..

      There was also a japanese plane that launced from a sub, and tried to drop incediaries in the forest of the oregon coast mountain range. Of course, forest fires don't happen in Oregon in winter, we don't tan, we rust!!

      Oh, and a torpedo was launched from a japanese sub at Camp Rilea (Spelling??, now a national gaurd base) but they didn't take into account the slow slope of the beach, and the torpedo just ran up on the beach and never went off.

      --

      What are we going to do tonight Brain?
    10. Re:Techology has gone full circle by Deadstick · · Score: 3, Interesting

      Thaddeus Lowe, grandfather of "Pancho" Barnes of "The Right Stuff" fame, provided balloon-borne reconnaissance services to the Union Army as a contractor, until he quit the deal in disgust over corrupt contract management in the Army.

      Germany used Zeppelins (aka dirigibles) in WW1 for reconnaissance and a small (though dramatic) amount of bombing. As a result of this, the US, which had the only known source of helium in those days, refused to sell it to Germany after the war, which led directly to the Hindenburg disaster. (Yeah, yeah, I know the combustible-fabric story, and if you believe it you can still buy aircraft fabric and aluminized dope and find out for yourself how much of a fire it makes in the absence of hydrogen!)

      British cities used "barrage balloons," unmanned balloons tethered over cities by steel cables intended to snag low-flying bombers in WW2.

      The entire US coastline and much of the Caribbean were patrolled during WW2 by Navy blimps (and a very few dirigibles) which were ideal for finding and destroying U-Boats -- a capability which can be explored by googling "Brewster angle".

      The Japanese fire balloons were aimed at the continental US...Hawaii would be much too small a target to hit. Quite a few reached the States -- I believe one got as far as a Chicago suburb -- but the gubmint pressured police, fire departments and news media to cover up the events as far as possible; there were no really big fires set, and the lack of publicity caused the Japanese to drop the project for lack of apparent results.

      rj

    11. Re:Techology has gone full circle by macdaddy357 · · Score: 2, Funny

      Somebody set up us the bomb!

      --
      How ya like dat?
    12. Re:Techology has gone full circle by dbrower · · Score: 4, Informative
      Yes, you are the only one surprised by use of a blimp instead of a rigid airship.

      Rigid airships are a lot more complicated to build structurally, since they are carrying a bunch of rigid structure that does nothing to generate lift and can bend and break under stress. Blimps are not just one big ballon, but can and are compartmentalized for disaster containment. Blimps were built in large numbers during WWII as patrol craft, and operated in the US Navy in that role up to sometime in the 1960s. The USN gave up on rigid airships in the 30s, essentially after the Shenandoah went down in a storm.

      Balloons are not blimps because they don't have maneuvering engines. A spherical blimp would have engines that move it, making it more than a balloon.

      (An untethered Kite or parachute with an engine is called an ultralight, or an airplane)

      One of the big issues with these proposals has been power generation and storage. The solar generators that are light enough and flexible to go on a blimp body have tended to be low efficiency compared to heavier crystal cells, according to this, though there are claims here that new products can do nearly as well.

      Batteries are notoriously heavy, so it's a tradeoff that hasn't been economically possible yet. Things need to be efficient, light, reliable, and cheap enough. The proposed HAA is still using old lead-acid batteries! I guess this works if there is enough helium, and low enough power demand (related to low wind speed to fight).

      here is an article that describes this in more detail.

      -dB

      --
      "It if was easy to do, we'd find someone cheaper than you to do it."
    13. Re:Techology has gone full circle by arfuni · · Score: 2, Interesting

      I'm pretty sure that a Japanese sub also attempted to fire artillery at some kind of (petrol?) refinery in the northwest. They missed.

  6. You are Number 6. by trix_e · · Score: 5, Funny

    admittedly I didn't look at the site... but thinking about giant security blimps reminded me of the "guards"...

    --
    No man is an island, but Gary is a city in Indiana.
  7. The logical conclusion by Nick+of+NSTime · · Score: 5, Funny

    Soon, a stout steamer will carry all of our correspondence be-tween the United States and the British Empire, reducing communication time to a scant six weeks! Huzzah!

    1. Re:The logical conclusion by tbjw · · Score: 2, Funny

      The colonies, sir, are part of the Empire.

    2. Re:The logical conclusion by ENOENT · · Score: 3, Funny

      Inform Lord Vader immediately.

      --
      That's "Mr. Soulless Automaton" to you, Bub.
  8. So yeah. by Anonymous Coward · · Score: 5, Insightful

    References to "1984" have become so common and hackeneyed these days that it's become kind of like the second order version of Godwin's Law or something. I'll agree with this.

    But is this a reasonable time to start referencing 1984, now that they've started implementing actual plot devices from 1984 (the surveillance helicopters) in real life??

    1. Re:So yeah. by Anonymous Coward · · Score: 2, Insightful

      I think you're mistaken in calling the helicopters from 1984 a "plot device", since that is a metaphorical term for the authors tools in moving the plot along, which the security helicopters were really not.

      However I agree with your thoughts. 1984 quotes are so rampant now that it's cliche, which sickens me because it's all true as day and in everyones faces.
      Guess what? Nothings going to change. The only thing that you will see interrupt this downward spiral of our current civilization is a complete upheaval of the US government. No amount of protesting, terrorism, violence or passiveness is going to alter this countries current course.

      I would love nothing more in my entire life and existence to be proven wrong about that...

  9. Starcraft by nuclear305 · · Score: 5, Funny

    ....Does anyone else hear some spooky voice saying 'Must Spawn More Overlords!'

    Maybe this is all just a mass coverup to crashing alien craft. The numbers of crashed alien vessels has increased to the point where we need to make sure we have enough high alt. blimps cruising around so that we can claim one crashed!

    1. Re:Starcraft by petabyte · · Score: 2, Funny
      Bah, you zerglings. I'll take care of this.

      *Nuclear Launch Detected*
    2. Re:Starcraft by Kelz · · Score: 2, Funny

      I don't know about you but I don't want to ride in its ventral sacs... ick.

  10. Frickin Beautiful Legalese by WwWonka · · Score: 3, Interesting

    From the TechsSphere page on the project:

    This release contains statements that constitute forward-looking statements. These statements appear in a number of places in this release and include all statements that are not statements of historical fact regarding the intent, belief or current expectations of the Company, its directors or its officers with respect to, among other things: (i) the Company's financing plans; (ii) trends affecting the Company's financial condition or results of operations; (iii) the Company's growth strategy and operating strategy; and (iv) the declaration and payment of dividends. The words may, would, will, expect, estimate, anticipate, believe, intend, and similar expressions and variations thereof are intended to identify forward-looking statements. Investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, many of which are beyond the Company's ability to control, and that actual results may differ materially from those projected in the forward-looking statements as a result of various factors.

    Man sometimes the beauty of legal double talk brings tears to thine eyes...***sniff sniff***

  11. It's emotional for Akron ... by s20451 · · Score: 4, Informative

    ... perhaps because one of the original US military airships was the USS Akron?

    These blimps were actually aircraft carriers. Akron's sister ship, USS Macon, once "dive-bombed" a Navy ship carrying President Roosevelt, dropping a bundle of newspapers for his reading. The stunt was intended to prove the worth of aircraft against ship targets.

    --
    Toronto-area transit rider? Rate your ride.
    1. Re:It's emotional for Akron ... by john82 · · Score: 4, Interesting

      As a native of Akron, I can tell you that blimps are an emotional issue with residents of the region. We associate blimps with Goodyear and, by extension, the rubber companies. Prior to the late 1970s, Akron was the rubber capital of the world. There were scores of tire manufacturing plants. Likely as not, your father owed his job directly or indirectly to the rubber industry (either he worked in the plants, sold goods and services to the plants, or sold goods and services to people who worked in the plants). The rubber industry was the focal point of local pride.

      Then the rubber union went on strike one last time... *poof*

      NO more tires made in Akron. Tens of thousands of jobs eliminated. The whole local economy went in the sewer for the next 25 years.

      Akron is just starting to come back. But in the minds of the those of us from Akron, anyone's blimp makes us think of the real thing (a Goodyear blimp) and the good old days.

  12. Ha! by Anonymous Coward · · Score: 5, Funny


    I've got them both beat... I'm working on a sport-utility blimp that's nearly the size of Australia!! The only problem I have so far is that it's a little hard to maneuver around smaller blimps.

  13. Security Cloud Cover? by pickapeppa · · Score: 5, Funny

    Just think though, with enough robotic blimps spying on us, the satelites won't be able to see us. Will this mean I'll need to build a new kind of aluminum foil hat?

  14. Americans spying on Americans by Ars-Fartsica · · Score: 4, Insightful

    The next trend will be finding "coldspots" instead of "hotspots" - places you can go to live freely outside of the benevolent observation of the government.

    1. Re:Americans spying on Americans by Neil+Blender · · Score: 2, Funny

      The next trend will be finding "coldspots

      Most people here already have that covered. Now, if they'd only clean up the basement like their mothers keep asking they can be free of both parental harassment and goverment spying.

  15. AD space by xraylima · · Score: 2, Funny

    Maybe large multi-nationals can sponser these blimps and fly them over sporting events. Wouldn't that be grand.

  16. Well, Okay... by Billy+the+Mountain · · Score: 3, Funny

    but only if they fill them with Hydrogen!

    BTM

    --
    That was the turning point of my life--I went from negative zero to positive zero.
  17. Two questions by dargaud · · Score: 2, Interesting
    • If they are this big, won't any idiot with a gun be able to shoot them down ? Kinds of defeats the purpose if they are meant for surveillance
    • I thought helium resources were pretty limited on the Earth. Were are they gonna get all this helium ?
    --
    Non-Linux Penguins ?
    1. Re:Two questions by mikeee · · Score: 3, Informative

      The distance a gun will shoot striaght up is surprisingly limited; small bullets suffer from a great deal of drag and you actually can't neglect gravity.

      Handguns are a non-started; you'ld need a large, specialized anti-aircraft gun to even think about it.

    2. Re:Two questions by StateOfTheUnion · · Score: 3, Interesting
      I read somewhere a couple years ago that the US military liked the idea of blimps etc. because they can stay up longer and they're cheaper to operate than a plane.

      As far as shooting them down goes . . . one could easily shoot down an AWAC (large radio relay and surveilance plane) too, but they are escorted and/or fly near, but outside the combat theatre.

      The intent of balloons/blimps is to keep them outside the theatre of combat . . . If it flies high enough, then one can use it to spy enemy activities past the horizon . . . or at least the horizon at ground level. In other words, at higher altitudes, one can see/snoop on radio transmissions/etc. further than at ground level due to the curvature of the earth . . . so even if you fly behind friendly lines, you can still spy on the enemy.

    3. Re:Two questions by curmudgeous · · Score: 2, Funny

      Well, duh.... 1. They'll make them out of that liquid-enhanced body armor discussed just a couple days ago, and 2. They'll fill them with all the helium produced as a by-product of cold fusion.

    4. Re:Two questions by mforbes · · Score: 3, Informative

      rtfa.

      Floating about 13 miles above the earth and holding a stationary orbit for 12 to 18 months,

      Sure, you got a gun that can shoot 13 miles straight up?

      --

      Allegedly real newspaper headline from 1998:
      Man Struck by Lightning Faces Battery Charge

    5. Re:Two questions by imsabbel · · Score: 3, Informative

      Thats true. But considere the position of the earth:
      During the early age of the solar system, while planets were still unformed, the inital blazing (with a lot more flux in the solar wind) of the sun pushed most light materials into the outer solar system (very rough explanation, i know). Thats the reason why the inner planets are no gas planets to begin with.

      Now step 2: There was still a lot of helium remaining, but as the lightest gas (after h_2), it went up in the athmosphere and off into space. Its a slow process, because the bolzmann distribution isnt likely to give a atom escape velocety, but it happens. And they had 4 billion years of time...

      The result is that nearly all helium on earth is the result of alpha decay (thats the reason why natural gas, of all things, is the best source of helium, at least on some oilfields: helium tends to collet in the same spots than the gas while going of from deeper layers of the earth)

      --
      HI O WISE PRINCE. WHT TOOK U SO DAM LONG?
  18. Homeland Security by maxdamage · · Score: 5, Interesting

    Notice their plan for using the blimps for homeland security. Notice the lack of ballons to the north. Do we trust canadians now? (j/k) But seriously, what happends when somone flys over canadian air space and around the blimps?

    1. Re:Homeland Security by ThingOne · · Score: 3, Interesting

      They have used blimps in the past to monitor drug traffic from the south. Its called the TARS Program (and here. These blimps have been operational since the 1980's. (1984?). This new program is like an updated TARS program.

  19. Daily Show by nicnak · · Score: 2

    Jon Stewert did a bit on this a few months ago. He kept citing the report titled Hey, what if we put a camera on a blimp and the more detailed report Hey, what if we put a good camera on a blimp.

    1. Re:Daily Show by Tackhead · · Score: 3, Funny
      > Jon Stewert did a bit on this a few months ago. He kept citing the report titled Hey, what if we put a camera on a blimp and the more detailed report Hey, what if we put a good camera on a blimp.

      What if we put a frickin' las--- oh, never mind...

  20. Depends . . . Re:target? by StefanJ · · Score: 3, Funny

    GURPS has a range of 1,650 yards.

    Dungeons & Dragons v3.5 can reach about 1,240 yards but some some inexplicable reason is more popular.

    The old Chivalry & Sorcery RPG had a range of nearly five miles, but figuring out how to shoot it could take years.

  21. Revised script to "A New Hope" by Tumbarumba · · Score: 2, Funny

    BEN: That's no moon! That's a Security Blimp!

    --
    My business: Farstrider Studios.
  22. Spherical blimps? by Lars+T. · · Score: 2, Funny

    Gee, why don't they call them balloons?

    --

    Lars T.

    To the guy who modded me down from perfect to terrible Karma - Apple haters still suck

  23. Finally, the strategic helium reserve gets a use! by silentbozo · · Score: 4, Interesting

    Not only were both rigid-body airships and blimps everywhere, helium was declared a strategic war material. A National Helium Reserve was established in 1925, and we've been sitting on stockpiles of the stuff ever since. Finally, it will get used for its intended purpose (hopefully...)

  24. Re:How about air traffic? by Verminator · · Score: 3, Informative
    IANAP. IAAAM. (I am not a pilot. I am an aircraft mechanic.)

    Civilian aircraft (including airliners) rarely fly much above 40,000 feet.

    Shouldn't be a problem.

    The biggest danger window would be during blimp acsent and descent.

    --
    "The more corrupt the state, the more it legislates." - Tacitus
  25. Re:How about air traffic? by ZombieEngineer · · Score: 2, Informative

    Your typical 747 cruises between 36,000 ft and 44,000 ft. Air density starts thinning out dramatically at these altitudes hence the maximum possible altitude for a civilian aircraft would be say 50,000 ft (15.3 km straight up).

    The only possible exception would a supersonic aircraft but there isn't too many of those in civilian hands.

    Da ZombieEngineer

  26. Aerostat, anyone? by Mononoke · · Score: 3, Insightful

    Sounds just like a larger implementation of the not-too-sucessful Aerostat program they tried along the Southern borders of the US.

    --
    NetInfo connection failed for server 127.0.0.1/local
  27. Re:Welcome by domovoi · · Score: 2, Funny

    I was going to go with the:

    I for one welcome our large, invisible, gas-filled overlords...um...version 2.0.

  28. Shooting down the blimp by Experiment+626 · · Score: 4, Informative

    There have been several posts to the effect of "what a big target, anyone with a gun could shoot these down". Consider the physics of this for a moment.

    A Magnum-powered hunting rifle has a muzzle velocity of around 2,000 mph (You could try using an AK or such, but these are going to be considerably lower velocity). With the high-altitude blimps flying at 65,000 feet per the article, your shot would hit it in about 22 seconds, were it not for two things:

    The first is gravity. 32.2 feet per second squared downward acceleration. Vith v^2/2*g = 131,400 feet maximum height, there is high enough initial velocity to hit the blimp.

    The second problem, however, is air resistance. The aforementioned bullet loses half its velocity within the first 1,800 feet or so even in level flight, and continues to slow down from there.

    Between these two considerations, there is no way for a bullet (except maybe from a huge cannon) to hit something that is 65,000 feet up in the air.

    Even if you did hit it, a blimp is not going to suddenly pop like a rubber balloon. You might get lucky and hit a motor or some other critical component, but just hitting the surface of the blimp (which is what makes it such a big target) is just going to put a 1/3" hole in something as big as a skyscraper, and make it leak at a negligible rate.

    1. Re:Shooting down the blimp by praksys · · Score: 4, Insightful

      Let me guess, you think that blimps are filled with hydrogen just like the Hindenberg? These days they use helium. It doesn't burn. In fact it is so non-flamable that you could use it to put out fires.

      As the poster above said they would be above the range of guns. No significant heat signature so man-carried surface to air missles are out. And yes they do have to come down, but they launch straight up so, unlike fixed-wing aircraft, there is no long flight-path to guard.

      A high-altitude radar guided surface to air missile would probably do the trick. But really, if therrorists are setting up radar systems and SAM batteries in your back-yard then you have more to worry about than having an unmanned blimp shot down.

  29. Re:height is good by Carnildo · · Score: 2, Informative

    The higher you go, the farther you can see. I don't recall it exactly, but @ the beach, you can see something like 22~25 miles out to sea. Raise yourself 20 or 30 feet and your viewing distance increases tremendously.

    If you're standing at the edge of the water, the horizon is less than three miles away. At 30 feet, it's six and a half miles.

    At 65000 feet, it's 314 miles away.

    --
    "They redundantly repeated themselves over and over again incessantly without end ad infinitum" -- ibid.
  30. For the people by Kelz · · Score: 2, Insightful

    that weren't required to read it in high school and are wondering what all these double-plus-ungood and 'big brother' comments are, check this out.

    There was once a time where everyone on /. would know this.

  31. Re:Umm...HELLO?! Sniper rifle time! by MajorDick · · Score: 2, Interesting

    Ummm, hello, not even CLOSE, a 50 cal BMG dosent even have the altitude they are talking about is > 50k ft.

  32. Free Online Version by jhujoe · · Score: 2, Informative

    Better yet, check this out for the free online version.

  33. Protected. Detective. Electric. Eye! by Tackhead · · Score: 2, Interesting
    > is this a reasonable time to start referencing 1984, now that they've started implementing actual plot devices from 1984 (the surveillance helicopters) in real life??

    Excuse me? In what way are 500-foot-diameter blimps like helicopters? They're big. Round. Like... I dunno... like... eyes! Big... electric... eyes! Yeaaaaaaaaaaahhhh!

    <airguitar>

    Up here in space,
    I'm looking down on you. My lasers trace
    Everything you do.
    You think you've private lives
    Think nothing of the kind.
    There is no true escape
    I'm watching all the time!

    I'm made of metal!
    My circuits gleam!
    I am perpetual,
    I keep the country clean!

    I'm elected, electric spy
    I'm protected, electric eye.

    Always in focus
    You can't feel my stare.
    I zoom into you
    You don't know I'm there.
    I take a pride in probing
    all your secret moves
    My tearless retina
    takes pictures that can prove.

    Electric eye, in the sky
    Feel my stare, always there
    There's nothing you can do about it.
    Develop and expose
    I feed upon your every thought
    And so my power grows.

    I'm made of metal!
    My circuits gleam!
    I am perpetual,
    I keep the country clean!
    I'm elected, electric spy
    I'm pro-tect-ed, de-tec-tive, e-lec-tric eyyyyyyyyyeeeeeeeeeeeeee.

    </airguitar>

    George Orwell's 1984's helicopters are totally pwn3d by Judas Priest's Electric Eye, and Rob Halford sang it in 1982. Nyaaah!

  34. Re:Finally, the strategic helium reserve gets a us by mentaldrano · · Score: 2, Informative

    Actually, people like me have been using the strategic helium reserve for years. I'm a physics grad student who uses liquid helium for cryogenics experiments, and about half of our helium comes from the reserve, with the other half coming from coal mines and oil wells. I'm too young to remember it, but the old guys in the physics department remember when helium was $10-20 per liter (liquid), whereas now it's about $5-7 thanks to the Feds selling it cheap.

  35. Visual pollution by AngryScotsman · · Score: 2, Interesting

    Now I live in New Zealand and these giant gas bags won't be showing up here any time soon, but I was wondering, will it be possible to see them from the ground? I expect not in the cities, but out where the air is clear?

  36. Re:height is good - How to calculate visibility by andrewbaldwin · · Score: 2, Informative

    As a rough rule of thumb (in imperial units):

    Take your height above the ground in feet, multiply by 1.5 and take the square root to get the visible horizon in miles.

    For a six foot person this would be sqrt(6*1.5)=3miles. If they moved to 150 feet it would be 15 miles......