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User: jklovanc

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  1. Re:Space Trash on UT Student-Built Spacecraft Separate and Communicate · · Score: 1

    According to the article http://fastrac.ae.utexas.edu/our_satellites/operation.php it orbits at 650KM. That is higher than the Hubble which is at 595Km. Maybe you should check your figures before posting.

  2. Space Trash on UT Student-Built Spacecraft Separate and Communicate · · Score: 1

    Lets put up 120 pound of material into orbit with no more use that to prove that they can communicate. Isn't there an issue with junk in orbit?

  3. Re:Correlation is not causation on Prehistoric Garbage Piles Created "Tree Islands" · · Score: 1

    Remember you are talking about a swamp. there is no dry land to walk away on and throw away the garbage.

    As for "peer review", I do not believe that Science Now is a peer reviewed journal. Another issue is that many scientists have a theory and then set out to prove it. That is not the scientific method. That do not consider alternate scenarios and work hard to prove themselves right.

    A very plausible explanation for raised areas is alligator nesting. Alligators mound up muck, sticks and vegetation to lay their eggs. Humans come along and occupy these islands. Since it is water the rubbish tips are at the waters edge. Humans probably enlarged the islands, along with the action of trees, but I doubt they created them.

  4. Correlation is not causation on Prehistoric Garbage Piles Created "Tree Islands" · · Score: 2

    How do we know that the garbage didn't collect because the land was drier so people lived there?

  5. Re:Reflected Light on Help Map Global Light Pollution, By Starlight · · Score: 1

    Take a look at this data http://en.wikipedia.org/wiki/File:Albedo-e_hg.svg. Notice that the albedo of dry earth ranges from 22 to 35. Snow is up to 85. The number 10% is very low.

    The main issue with this article is that it does not articulate what is causing the problem. It just tries to measure it an inaccurately at that.

  6. Reflected Light on Help Map Global Light Pollution, By Starlight · · Score: 1

    When light is directed downward at the ground some of that light is reflected upward again. Otherwise we could not see what is on the ground. How do you stop light being reflected by the ground? People want to be able to see when walking the streets after dark, play sports at night, etc.

    There are some lights that need improvement but great strides have been made. The bad lights can not be found by people describing ambient light.

    Another issue is that when people look at the sky they have generally just left a building with white light and probably have a street light in their field of vision. They are effectively night blind and seeing any stars will be difficult.

  7. Re:Bully on US Ed Dept Demanding Principals Censor More · · Score: 1

    The difference between the two is rights. A child being overweight does not hurt a bully and a bully has no right to harass anyone about it. A bully harassing a child because he is overweight does hurt an overweight child and an overweight child has a right not to be hurt. Telling a child that what they are doing is unacceptable is not hurting the child's feelings; it is correcting an unacceptable behaviour. Are we never to tell a child that what they are doing is incorrect? How will children learn what is socially acceptable? It is all in the way it is phrased. I see no issue with telling a bully that calling another child names is unacceptable behaviour that could lead to detention or suspension from school.

  8. Re:Bully on US Ed Dept Demanding Principals Censor More · · Score: 1

    Are you saying that bullying someone because they do not meet your weight standard is OK? Nowhere did I say anything about physically hurting a bully. I was talking about the school using the school's regular disciplinary measures. How does telling a child that their behaviour is unacceptable and there will be consequences hurt a child?

    How is a lecture, detention or suspension from school worse than a suicide? We have left it alone and the child suicide rate is rising.

  9. Re:Great idea! on US Ed Dept Demanding Principals Censor More · · Score: 1

    You are assuming maturity that does not exist in children. They are not little adults. Their brains work differently. They have different emotions. The feel emotional pain physically. They have no defences. Maturity comes with time not platitudes.

  10. Re:censorship is censorship in any form. on US Ed Dept Demanding Principals Censor More · · Score: 1

    Actually you don't have the right to say anything you like. There are liable, slander and harassment laws that cover unprotected speech.

  11. Re:somene please help me on US Ed Dept Demanding Principals Censor More · · Score: 1

    There are limits on freedom of speech. Liable, slander, hate speech and harassment are all illegal.

  12. Re:Ludicrous on US Ed Dept Demanding Principals Censor More · · Score: 1

    This is coming from someone who was beaten up by the entire soccer team THAT I WAS ON; bullies have friends. If you manage to beat up a bully he will get friends to team up and do much worse to you. It is very difficult to "hurt back" when it is four on one. What does a child do when he is body checked into a locker? Tripped in the cafeteria? Towel snapped in the locker room? Are all of these supposed to end in a fight?

    Maybe you dad stopped getting beat up when he and the bullies finally matured. I got beat up often until 12th grade then it stopped. I didn't learn to box. Learning to box does not help a child when there is more than one opponent.

  13. Might Makes Right? on US Ed Dept Demanding Principals Censor More · · Score: 2

    So "might makes right"? What if one is significantly smaller than the bully? What if the bully always has friends around? I was physically abused by other students and was in several fights. They never helped. If I lost I got beat up again. If I won they went and got friends to help them next time. Fist fights by children is never a solution even temporary.

  14. Bully on US Ed Dept Demanding Principals Censor More · · Score: 1

    Excellent post from someone who was not harassed in school. You are looking at this from the point of view of a mature adult. Get out of yourself for a minute and think about it from the point of view of a thirteen year old smart, shy, overweight girl with glasses. Every time you go to school all you hear is nerd, fatty, four eyes, lezbo. Others laugh when they hear it. Every time you hear it you feel physical pain. You see the same posts on Facebook. You can never escape the pain. You start to believe you are worthless.

    Here are a couple of points that you seem to ignore.
    1. There are many forms of speech that are not protected by the Constitution or Bill of Rights. Liable, slander, hate and harassment are four of them. Would you prefer the school deal with these issues or would you rather have the courts clogged.
    2. These are children we are talking about. They are emotionally and logically immature. The harassers do not understand the consequences of their actions and what kind of speech is protected. The victims do not have the defences an adult has and have a tendency to believe anything if heard often enough. Saying "get a thicker skin" is irrelevant because that children have no emotional skin. Saying "grow up" also doesn't work because that takes time and hormones.

    Children need to know what is protected speech and what is not. School is a great place to learn that.

  15. Accountability on Apple Moves To Stop Kids Racking Up iTunes Bills · · Score: 2, Interesting

    What ever happened to parents holding their children, and themselves for that matter, accountable for their actions. In any child of mine purchased anything online without my permission I would make them work to pay the charges. Maybe it will teach the children the value of money. Maybe it will also teach parents to log out of iTunes before handing the phone over to someone else. In my mind this is no different than logging into one's bank account and the letting a child play on the computer without logging out.

  16. Not So Fast on Researchers Develop Biofuel Alternative To Ethanol · · Score: 1

    So far they only have lab experiments. Nothing is in production yet. It is quite possible that they will have a similar issue as with hydrocarbons produced by algae. When they tried to scale up to production level contaminants cause the good algae to die. Promising; yes. Production; not yet and maybe never.

  17. Re:Wait, what? on The Car Faster Than a Speeding Bullet · · Score: 1

    There is no off switch on a solid rocket. You light it and it goes until all fuel is burnt. When they run out of land or something goes wrong they need to shut the engine off. They do that by shutting off the oxidizer.

  18. Re:Just a spec. on Quadruped CHEETAH Robot To Outrun Any Human · · Score: 1

    This quote is taken from the article

    "The CHEETAH robot will reportedly have four legs, a flexible spine, an articulated head/neck, and perhaps a tail. It will be able to run faster than any existing legged robot or human runner, make tight, zig-zagging turns in order to chase or evade, be able to accelerate very rapidly from a standstill, and stop just as quickly."

    Sorry but Big Dog does not meet any of these requirements; it is a truck not a sports car. It looks like the design is targeted at chasing down a human. Big Dog is nowhere near manoeuvrable enough and has nowhere near the acceleration needed.

  19. Re:Just a spec. on Quadruped CHEETAH Robot To Outrun Any Human · · Score: 1

    From the Boston Dynamics web site the top speed of Big Dog is 4mph. Maximum human sprint speed is 27.79 mph which is almost 7 times the current speed of Big Dog. A cheetah does 62 mph which is over 15 times the current speed of Big Dog.

    Don't you think they already move the Big Dog as fast as they can with current technology? Why would they go artificially slow?

    When acceleration and directional change (remember there are no wheels) is considered the power required will me much more than what Big Dog produces. More power = more weight = bigger actuator = more weight = more power needed = back to square one.

    I think with a stripped down version of Big Dog may be able to double the speed but I doubt they can go much further.

  20. Re:Just a spec. on Quadruped CHEETAH Robot To Outrun Any Human · · Score: 1

    Big Dog is impressive but slow. Equating big dog to a cheetah is like equating a Mac truck to a Ferrari; they are very different technologies. The main issue will be weight to power. How to build actuators fast and powerful enough for the required speed without making them too heavy. The power source and energy reserve have the same issue.

  21. Just a spec. on Quadruped CHEETAH Robot To Outrun Any Human · · Score: 1

    So a contract was awarded to build a robot; so what? It is very easy to write a contract but very difficult to build to the spec.

    Talk to me when you have something to show. Till then it's just words on paper.

  22. Re:WTF? What Windows desktop metaphor? on Ask Slashdot: Is the Recycle Bin a Good GUI Metaphor? · · Score: 1

    Sorry but you don't get the point. All my data is held in boxes/books on my desk.

    When I want to work with columns I take out my ledger book (excel) and turn pages to find what I am working on (open a file).
    When I want to play a game I open the WoW box and play.

    The metaphor you are describing is a filing system and I have that too but I have to open the door first the leaf through all the drawers and files to find what I need.

    In the metaphor 100% accurate? No, that is what it is a metaphor not a simile.

    One final note, articles like this annoy me. It is extremely simple to say something wrong and give no alternative. If you want to help society, add something.

  23. Re:Oh, look it's someone we can relate to on Zimbabwe Professor Arrested and Tortured For Watching Online News Videos · · Score: 1

    I really wish you would read some history before you equate the forces controlled by Mugabe with any other military on earth. We are not talking about India where the leaders have a conscience. Mugabe had his militia murder an opposition leader's wife buy burning her to death after cutting off her hands and feet. Mugabe is an animal and his militia is ruthless and probably well paid. If someone starts to write a new constitution they are DEAD; simple as that.

    The population of Zimbabwe is only 12.5M and mostly rural. You can easily control the country by controlling the few cities with a relatively small number of loyal troops. Most people in Zimbabwe are more concerned with finding food than fighting. That is not to say they do not want freedom but they don't have the means to get it.

    The point is the military has already done horrendous things and know if they do not retain power many of them will be fired, sent to jail or executed. Lets see, shoot a few farmers or go to jail. It seems to be an easy choice for them

    You seem to forget Libya. They are standing up to the military with some rebel military of their own and many are dying. In Zimbabwe it may be much worse as the people have less support; it would be a slaughter.

  24. Re:Oh, look it's someone we can relate to on Zimbabwe Professor Arrested and Tortured For Watching Online News Videos · · Score: 1

    Egypt was relatively blood free because the military sided with the People. Libya has yet to play out and there may be a very bloody battle to get Qaddafi out. Mussolini was hanged after attempting to escape when the Allies invaded Italy. Wait a minute, that was a forgien power invading a country, Italy, to liberate it from its elected leader; interesting. I guess it works sometimes.

    Zimbabwe is even worse as the military has sided with Mugabe and have all the guns. The people of Zimbabwe are much less connected than the people of Egypt or Libya. Anyone organizing is easy to pick out and kill; it has happened. Any attempt at peaceful protest in Zimbabwe will be met with bullets and bloodshed. There is no one protecting the people of Zimbabwe.

  25. Blanket fix. on Ask Slashdot: Is the Recycle Bin a Good GUI Metaphor? · · Score: 1

    How about you suggest to the people who have the version of OCD that you are talking about how to set the recycle bin size to 0 and hide it rather than ruining the functionality for the majority of users who do not have the issue. As a Sys admin you need to be aware of the needs of all users and attempt to accommodate everyone; not just the ones with your disorder. Would you consider it reasonable for a blind sys admin to remove all monitors? (I realize that is a more drastic step but it is still accommodating a disability to the determent of those without it).