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User: jklovanc

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  1. Re:But what is the loss rate? on Boeing Touts Fighter Jet To Rival F-35 — At Half the Price · · Score: 1

    In one case, the F-105, the platform was responsible for over 75% of all ordinance dropped in Vietnam

    Close but no cigar. According to this article

    When the US engagement in Vietnam ended, Thuds had flown 75% of all bombing missions over North Vietnam.

    One B-52 mission, 70,000 lb each, is worth 7 F105 missions, 9500lbs each. So if 11% of the remaining missions were done by B-52s the B-52s would have dropped more tonnage. Missions and tonnage are not the same.

  2. Re:ROI on Boeing Touts Fighter Jet To Rival F-35 — At Half the Price · · Score: 1

    The three reapers would be with nothing when their command and control receivers are jammed by the opposition.

      Payload, 1 F-35 = 15,000 lbs, 4 Reapers 11,300 Max speed F-35 Mach 1.8+, Reaper 300 kts. Maximum bomb size F-35 2000lbs, Reaper 1500lbs. Airi to Air missile F-35 AIM-120_AMRAAM, Reaper AIM-92_Stinger

    If you mean in an air to air mission the F35 wins hands down. It just stays out of the 4.5km range of the Reaper's Stingers and shoots them down. In an opposed Air to ground mission the F-35 comes in at mach speed minimizing exposure while the Reaper lumbers in and gets shot down by 30 year old radar guided guns.

    The reaper is designed for unopposed missions while the f-35 is designed to handle much more difficult circumstances.

  3. Where did accuracy go? on DoJ Admits Aaron Swartz's Prosecution Was Political · · Score: 1

    The DOJ has told Congressional investigators that Aaron’s prosecution was motivated by his political views on copyright.

    A Justice Department representative told congressional staffers during a recent briefing on the computer fraud prosecution of Internet activist Aaron Swartz that Swartz’s “Guerilla Open Access Manifesto” played a role in the prosecution, sources told The Huffington Post.

    Since when is "[a] Department representative" the same as the DOJ? Since when does a manifesto playing a role make it political? Perhaps the role the manifesto played was "Wow, someone is following this manifesto and if we don't do something about it we may have a big problem on our hands. We don't want Swartz to go to every hacker conference and say 'I got away with it and so can you'". To me, that is the manifesto playing a role with good reason.

    Another point is that this "information" went through many hands. I doubt any of it was written down and verbal communication is known to be inaccurate. According to the article the DOJ representative told congressional staffers and that information got to "sources" who may not have even been in the meeting then to the Huffington post and finally to the article author. Hasn't anyone ever played the telephone game? In this case there is at least 5 information transfers and interpretations. Any information that has been passed that many times is suspect at best.

  4. Re:Ah, Let's Read the Whole Article, Shall We? on Study Suggests Generating Capacity of Wind Farms At Large Scales Overestimated · · Score: 1

    In 2009 a U.S. Fish and Wildlife Service (USFWS) scientist estimated that wind turbines kill 440,000 birds per year in the U.S., with future mortality expected to increase significantly as wind power generation expands by 2030 to levels about 12 times higher than 2009 levels.

    12*0.44 = 5.28.

  5. Re:Vague and Misleading on There Is Plenty To Cut At the Pentagon · · Score: 1

    The "single most expensive program in US military procurement" is a red herring. If you add the program costs for the F-18C/D, F-18 Super Hornet, A-10, AV-8 Harrier, F-22, and F-117 together and add inflation you will come up with a very large number. The F-35 is designed to cover all those roles.

    since the VTOL engine means it can carry less fuel and payload

    Less is a relative term. Here are the specifications for the F-35A; Combat radius >590 n.mi Max Payload 13,000-15,000+ lbs. Specifications for the F-35b; Combat radius >450 n.mi Max Payload 11,000-15,000+ lbs. By percentage that would be 76% range and almost 100% payload. Yes the specifications for the F-35B are a less bit less but still very respectable.

  6. Re:Vague and Misleading on There Is Plenty To Cut At the Pentagon · · Score: 1

    An F-35B takes a lot more than "a few tons" of supplies and "a few" maintenance personnel.

    Compared to the thousands of personnel in a carrier strike group it would be a few tons

    Why don't we just take over Bordj Mokhtar Airport in Algeria (or some other random airfield out there) and fly A-10's, F-16s, FA-18s, AH-64, AH-1s, SuperTucanos or any of a number of cheaper alternatives.

    If by "take over" you mean "negotiate access to". sure but if they refuse it is not a good idea to "take over" sovereign territory in another country.

    Here is the paradox of the F-35B. - It is a stealthy, expensive, STOVL 5th gen fighter. If you need a stealthy 5th gen fighter, you don't want to be based close to that opponent. If you can be based near an opponent with reasonable security, you don't need a stealthy 5th gen fighter.

    What if this year you need an aircraft based close to the enemy and next year you need a stealth aircraft to penetrate heavy AA? Do you have two aircraft types that will do each role or do you have one that can do both? The F-35B takes the second approach. One aircraft that can do both roles is less expensive than one aircraft for each role.

  7. Re:Vague and Misleading on There Is Plenty To Cut At the Pentagon · · Score: 1

    Carrirrs are for coastal areas; Persian gulf, North Korea, Coastal Africa, etc. When one gets a few hundred miles from the coast, carrier aircraft get very ineffective as the spend most of their fuel getting to and from the target.

    Drones which can loiter will rule the day,

    Combat range of a F-18 Super Hornet is 390 nm. To get to North East Mali it would be 1100 nm. Even with 25% more range that would mean 3 refuelings. At a reasonable cruise speed of 300 knots that would take over 7 hours to get there. Then there is loiter time. To keep a sortie to 8 hours, a very long one for a fighter pilot, and keep one aircraft available over Mali it would require 8 aircraft in the air. Or they could have a vtsol aircraft on the ground within 300 miles. Another issue is speed of deployment and support costs. Do deploy an F-35B would require a few tons of supplies a few maintenance personnel, the aircraft and the pilot. To deploy an F-18A takes a carrier attack group. An F-35B can deploy at a speed of 300+ knots while a carrier group can deploy at 25 knots. Basically they get there faster with a much smaller tail.

    A Predator drone can carry 2 Hellfire missiles for a total payload of 200lbs. Combat range of a F-18 Super Hornet is 390 nm. An F-35B can carry 15,000 lbs. It would take 75 drones to carry the payload of one F-35B . Drones are good for dealing with single or concentrated targets. They are almost useless against dispersed infantry in cover. They are great for surveillance but useless for attack. Again, sniper vs machine gun.

  8. Re:Vague and Misleading on There Is Plenty To Cut At the Pentagon · · Score: 1

    Nice simplistic solution with no solution whatsoever. It is very easy. to say "fight smarter" but much harder to actually do it. By the way, modern fighting will always be more expensive; it is called inflation.

  9. Re:Vague and Misleading on There Is Plenty To Cut At the Pentagon · · Score: 1

    There is a case for keeping the F-35B. It is to replace the aging and very outdated Harrier. One of the next hot spots is North Africa. The French and Europeans may not be able to handle it. VSTOL aircraft become very important in those areas and there are no runways to handle conventional jets. Yes, there are drones that can operate in those areas but they do not deal well with dispersed targets like troops on the ground. A drone is a sniper while a ground attacks jet is a machine gun.

  10. Re:WTF, dude ? on Fruit Flies Medicate Offspring With Alcohol · · Score: 1

    Alone no but combined with long grass, peeling paint, living room furniture on the lawn, etc it can.

    Sorry but the lawn sign thing is a freedom of speech issue. It is very different from a property value issue.

  11. Re:WTF, dude ? on Fruit Flies Medicate Offspring With Alcohol · · Score: 1

    Now I understand where the letters are coming from. The long grass and mildewed mailbox are signs of lack of maintenance which causes a rundown appearance which reduces property values in the neighborhood which cost property owners money. AKA, buy you being a lazy ass you are costing me money.

  12. Re:WTF, dude ? on Fruit Flies Medicate Offspring With Alcohol · · Score: 1

    Have you ever seen the process in removing mold from a building? They wear hazmat suits. By the way, the choice to lick a pussy is yours. Interacting with an mailbox is part of the mailman's job.

  13. Re:WTF, dude ? on Fruit Flies Medicate Offspring With Alcohol · · Score: 2, Interesting

    "mailbox is mildewed"

    That mailbox has to be handled by a mailman every weekday who may deal with hundreds of mailboxes. Mold and mildew release spores that can spread from mailbox to mailbox transported by the mailman, The mailman himself may inhale those spores, become infected, become ill and, depending on the fungus, possibly die. If it was only effecting the mail box owner then rant on but in this case it could effect many others.

  14. Choice or herding. on Fruit Flies Medicate Offspring With Alcohol · · Score: 1

    The crux of the hypothesis is that when there are no wasps around the fruit flies disperse evenly between fresh and fermented fruit but when wasps are around they congregate around the fermented fruit. The article hypothesizes that the reason is that the flies choose the fruit is that they know that wasps do not like alcohol. There is another possibility. That the flies do not like being around the wasps and the wasps do not like being around the alcohol. When a wasp approaches a fly it moves away. Since the wasps will not approach the fermented fruit there is no reason for the flies to move away therefore they congregate around the fermented fruit.

    The main thing against choice is that the fly should make the choice whether or not the wasp was present at that moment. If it is a choice the fly should know wasps are around even if not visible at any specific moment and choose the fermented fruit.

  15. Re:Know how I know you didn't read the article? on New Process Takes Energy From Coal Without Burning It · · Score: 1

    There is a huge difference between shoveling coal onto one end of a furnace then removing the ash and the complex process needed to keep the closed reactor running. The first thing being that handling powdered coal is very different that chunk coal. The most important thing being that powdered coal is highly explosive. A small spark will ignite it and blow the place to smithereens.

  16. Re:Know how I know you didn't read the article? on New Process Takes Energy From Coal Without Burning It · · Score: 0

    You might want to look up the term assumption. It may be much more complex than you think.

  17. Re:Know how I know you didn't read the article? on New Process Takes Energy From Coal Without Burning It · · Score: 1

    If it was a tiring week for two doctors and their grad students to deal with one small reactor that indicates that it required quite a bit of babysitting. How much babysitting would a much bigger reactor need?

    Sure on a small scale where fixing a small blockage means poking it with a metal rod. Try to scale that up to where one is dealing with tons of material rather than ounces. Get a major blockage and things can go very bad.

  18. Re:38% energy savings on Could New York City Cut Emissions 90% By 2050? · · Score: 1

    damn spell checker

  19. Re:In the air? on 3-D Printing Pen Can Draw In the Air · · Score: 1

    Thank you for assuming my motives.
    1. It is not outrage or faux outrage, It is merely a statement of how the falsehood in the headline was unnecessary and is becoming so much more prevalent on /.
    2. It seems funny how you accuse me of distortion but are fine with the distortion in the headline.
    3. I have issues with inaccuracies that make things sound better than they actually are. To me that is false advertising and false advertising is bad.
    4. "In the air" is not colloquial language. It means "in the air" as in supported by nothing but air and not "on the ground" as in supported by something on the ground. When flying a bird is "in the air".
    If by "pithy" you men "false and inaccurate" you are correct. To me there is no need to fluff up a headline to get me to read and article.

  20. Re:In the air? on 3-D Printing Pen Can Draw In the Air · · Score: 1

    I am not panning devs for not inventing anti-gravity I am panning the submitter for claiming they did.

  21. Re:Sane foreign policy... on How To Safeguard Loose Nukes · · Score: 1

    There are three countries that are not allies with the US that have nuclear weapons; Russia, China and North Korea. All of these countries have large armies to back up the nuclear threat.Even without nuclear weapons these countries would be a bloodbath to invade.

  22. In the air? on 3-D Printing Pen Can Draw In the Air · · Score: 1

    Sure it will print "in the air" as long as the object printed is supported by something else. Take a look at the examples. They are all standing on something. To me drawing in the air means having no support. Why is the accurate description of "3D printing sculpture by hand" not good enough?

  23. Re:Lead Paint Theory is Flawed on Senior Game Designer Talks About Game Violence, Real Violence, and Lead (Video) · · Score: 1

    Having lead paint around is not an issue. The problem occurs when the paint is not maintained and chips off where it is easily ingested by children. Perhaps the standards of maintenance are better in New England.

  24. Cause or Effect on Senior Game Designer Talks About Game Violence, Real Violence, and Lead (Video) · · Score: 3, Interesting

    Does playing violent games cause people to be violent in real life or do violent people in real life prefer to play violent games? In both cases there is a correlation but the cause and effect are reversed.

  25. Re:38% energy savings on Could New York City Cut Emissions 90% By 2050? · · Score: 1

    Most of the energy used by a building is heating and cooling. The retrofit of the Empire state building addressed those issues. I had to laugh that one of the retrofits was not done decades earlier. Under every window is a radiator. The retrofit was to put insulation between the radiators and the exterior brick wall. That was a huge hole for heat to get out during the winter and in during the summer.

    What can one do with an old building's interior to for energy efficiency? This is not sarcasm; I would like to know?