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User: AZhun

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  1. Re:Navy's response. on US Supreme Court Allows Sonar Use · · Score: 2, Interesting

    The whole move to use ever increasing strength sonar will only more quickly get those platforms found and knocked out. Passive and low noise systems to always be able to say "I see you but you don't see me" is paramount in tactics.

    The sale and acceptance of these systems will only result in dead crews, dead ships and loss of sea control. Quite foolish and a waste of money.

    That it adversely impacts the marine environment should further wave flags that the system puts out an abnormally high strength pulse more readily able to be heard by an approaching aggressor at distance, who then can counter.

    No real bubblehead would go active to confirm to a contact, "Here I am! Come get me!"

  2. SciFi from Old-Time-Radio days on Sci-Fi Books For Pre-Teens? · · Score: 1

    There have been so many good posts of books and series that had been fun back in the 60's that reminded me of those times!

    Another consideration both for reading and entertainment to add would be to look at old radio and TV series and their written spin-offs.

    One such would be "Tom Corbett". There are books both printed and often to be found on-line for download -- but there is also the old audio from the radio shows for MP3 players or CD-players.

    Some folks might show eye strain symptoms of headaches or car sickness if left to reading for long periods in moving conveyances.

    This then opens up shows like Dimension-X, X Minus 1, Twilight Zone and the like.

    It would also if played when you could comment upon points of changed social perspectives allowing you to teach analytical thought for rejection or modification for current times.

    As a mix in addition to Heinlein's Juvenile pieces, Jules Verne, or series like Tom swift this should expose them to a wide vocabulary and perhaps a sense of the flow of history.

    Other classics could more easily follow.

    You might consider how much of the mix is geared to the young reader so to build up their comprehension and enjoyment for what might be now "harder" works.

    Good luck - sounds like they should be well off in later years in school and later life. :-)

  3. A space-plane alternative would make sense on How We Might Have Scramjets Sooner than Expected · · Score: 1

    Ability to go mach 6+ has been done as stated on other reply about X-15 rocket plane.

    There have been hints of other experimental craft using plasma on leading surfaces to reduce sonic boom and stresses on airframe. (Various late 90's TV shows: an episode of "Beyond 2000" and a USAF piece on Nova PBS circa '96.) As the tale goes, even at lower alttitudes these seemingly produce wakes that don't touch the ground, making them fairly quite quiet, but have one heck of a radar signature. I'm not sure of the potential for EMI problems both in terms of equipment and long term physiological exposure.

    Aside from the above, why pursue the in-atmosphere (and assume for the moment, no or limited plasma skin effect) at about 60K ft when from even ICBM flight times or orbital times of Mercury and Gemini capsules it is clear that in the long run endeavoring into development of civilian spacecraft as sub-orbital and orbital craft would result in even lower flight times?

    A space capable vehicle, reaching 80K ft plus, makes more sense as an approach than ramming through the upper atmosphere; unless the ramjet is an intermediary propulsion approach so as to reduce rocket mode to only at highest altitudes.



    It might be interesting to conduct a study to determine long term effect to the atmosphere of both approaches as well as sort out which approach has better efficiency in terms of fuel and cost.

  4. Re:What no one seems to care about on CDN Forces Reactor Online Against Safety Regulations · · Score: 1

    I agree with the last thesis and add that one aspect on what I understood in mid 70's was that most CANDU plants had such low thermal density in core meats that dropping out the heavy water allowing the moderator to be removed broke the thermal slow down chain, reducing Keff to sub-crit and that the subsequent decay heat generated was well within ability of core materials to contain the fuel meat.

    This was an interesting fact years later when learning the shutdown cooling needs on a pressurized light water thermal power reactor.

    Now if this Canadian reactor is of different design from a heavy water thermal reactor (like at another plant I toured as a Yank tourist in late '60s in Ontaio) as say in a intermediate research reactor the question becomes what are the design thermal margins in the core during an emergency shutdown from a power history at different levels. Are these pumps are only needed if at shutdown is done from sustained 100% long runs such that say if shutdown from a sustained 50% power history could demonstrate no threatening post-shutdown problem then operation at reduced level until these pumps are qualified might be an option.

    That a reduced safe lower power option is not on the table shows either that like US PWR plants the power density is always too high requiring constant "keep the core covered" with need for contunuous heat exchange to a secondary system as a heat sink or else alternatives are just being denied.

    What is disturbing is a deviation from the attitude Rickover had about his attention to constantly subscribing to keep the nuc hibachi pot in one piece and the public safe.



    On the medical use side that decisions were made between US and Canada for Canada to be the sole source to this extent seems to be an economic agreement/understanding between the two governments. Then that within that undestanding some accountant led constraint tried to maximize returns by not doing the backup plant in either country seems also present. This is poor cooperation and overall attention to the job task of producing these isotopes. This then is both a Canadian and US gaff.

    On a side note there are various research reactors (or were, at US universities at one time) that could irradiate materials. Are these isotopes only derrivable from low enriched fuel elements? Could not these research reactors be used for some local supply relief? Gee, you'd think that universities would jump at being anle to get some unplanned cash.

    All in all it shows poor planning on both sides of the border.

  5. A reasonable voice- Re:What exactly do you need? on How Do Businesses Scale Their Bandwidth Needs? · · Score: 1
    Yep, you (dereference) hit the nail on the head.

    As add-on, I strongly suspect that most businesses can live on a T1 with possible exception of web-surfers that could be shunted over to DSL links allowing VOIP and customer traffic to use the stable T1. Engineering and IT always will want fast downloading pipes so that might be another consideration for a separate broadband feed.

    IMHO too many times vendors harvest customers because the client did not calm down and define the issues needing address while a starrry-eyed marketeer manager demanded provisions for servicing millions of new hits.

    Many small and inexpensive links could be made to function as a more expensive traditional "T1/frac-T3/T3". It has been done before. Just throwing pipes at it gets to be messy. All must eventually learn what the traffic is and then what the priorities are; what is "bread and butter" busines traffic and what is "nice to have". In that way an understanding of what level of survivability and back-up should be considered.

    Perhaps one strategy is to figure the minimal and expected reasonable maximum bandwidth loads these links need to service. Breaking up the different uses and user communities at the site as different user communities may be helpful for modeling. Then with these resulys in mind, see what single mode KISS approaches could satisfy.

    The follow-on steps would be the incorporation of a newer brain box with routing rules, filters and BW use limiters from the toy vendors verses home-grown open source projects, time, and funding. Strike a balance you can live with and retain a plan for upgrades.

    There are multiple solution sets always available limited by politics, money, time, favored vendors and learning curve - just remember to always propose solutions that you can live with on your own.

    And OBTW if there is need to cover that marketing evisioned slam you may be well to look at sever Co-lo with one of your carriers rather than needing that OC-48 drop "just in case".

  6. Re:Using this technology for warfare. on Japan Displays Prototype Robot Suit · · Score: 2, Informative
    Alright class, in ancient history there was this Science Fiction writer, Robert A. Heinlein...

    Besides the novella about the rise to power and eventual defeat of a despotic religious political movement in the US in REVOLT IN 2010, he wrote many other works.

    Unlike the movies and animated TV series adopted from the original work. Heinlein's original book, STARSHIP TROOPERS, had Johnny Rico wearing his Mobile Infantry Power Suite leaping over the enemy city with rocket assisted steps, looking at his heads-up display and tossing 25-second bombs ("I'm a 25 second bomb, I'm a 25 second bomb...") into crowded movie theatres. The Power Suite was what made the Mobile Infantry different from previous ground pounders

    It also went into a whole explaination of a new social order of Citizens and Residents left out of the recent entertainment video releases.

    Initial use in "hot areas" could happen in weeks or months.

    Two other fun reads from 60-70's and his younger reader phase are THE MOON IS A HARSH MISTRESS for computer assisted revolution and JOB: A DIVINE COMEDY to teach not taking things too seriously.

  7. Re:Sigh on Did HP Defraud the Canadian Government? · · Score: 1


    Oh I get it...

    Your "Liberal Party of Canada" is like the bunch of Republicans in Washington, D.C. now,...

    ...while the "Progressive Conservatives" are like the regular Eisenhower GOPs.


    See we are so much alike despite "Canadian Bacon".

    :-)

  8. Re:Sad on Parents Sue School Over Use of Wi-Fi Network · · Score: 2, Interesting

    And the old 50s floriscopes used for shoe fitting killed millions!

    Yes, they were dangerous and yes, they did damage; it is the extreme other side (well, except for guys going on shoreleave thinking that the new RADAR thing would kill sperm or diseases so thay'd buy time in front of the energized antenna - zap -- God some of your people hold down the low end of the bell curve!)

    Yes, your points are well placed. Examples of de-evolution. Here is more.


    From the radicals demonstrating in '68 came the death of Eisenhower's education initiative for Scientific and Engineering education post-Sputniki. As steps were taken not to make'm too brite no mor. Dey hump rifle, go 10 bang-bang real good den.


    What we see are ever lowered standards since 1968.

    Follow the trends most of the textbooks are from an approved list coming out of some bent Texas board. McGuffy readers from the one room schoolhouse up through the later 19th Century are better. Than the bent askewed stuff now.

    Want to have fun: download the Ontario standards and class cirriculum for High School it reads like most 4-year liberal arts degree down here.

    Its not that they're so smart it what ours was in the heavy industry areas like the Rust Belt and New England because you couldn't get a job, keep the factories going or build new enterprises without it. Let alone enage in the Cold War.


    Of course since coming to AZ from the rust belt I am still in shock -- as here as near as I can tell Arizona exists to make Mississippi and Alabama look good.

    Why these lame lawsuits -- education and knowledge has been replaced by myth and ignorance.



    On the Republic's gravestone: THEY GAVE IT AWAY.