Slashdot Mirror


User: Yazeran

Yazeran's activity in the archive.

Stories
0
Comments
151
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 151

  1. Re:7 Bashing on Microsoft Denies Windows 7 "Showstopper Bug" · · Score: 1

    Well you can at least fill /var without the system crashing, sure some programs do not work right (and fails in odd ways) but the system as a whole stays alive...

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  2. Re:And *specifically*, you need to read on Could Cyber-Terrorists Provoke Nuclear Attacks? · · Score: 1

    You are right in that. In the book the 15 kT yield was due to He-3 contamination of the tritrium due to too long time 'on the shelf' in the scientist's basement (He was former east german nuclear scientist).

    Yours Yazeran

    Plan: To go to mars one day with a hammer.

  3. Re:Their value system is out of whack on Bletchley Park WWII Staff Finally Recognized · · Score: 1

    Actually yes, a switch in codes would not necessarily have to be due to knowledge of enemy code breaking and even so, no knowledge of whom had leaked the thing would be nessesarry.

    On the other hand, if they had bombed bletchley, then only people who knew that it was at bletchley it was done could have been the leak. whereas the other option could be ascribed to either one of a number of reasons:

    1) mathematical analysis of their own codes leading to discovery of weaknesses
    2) a lowlevel leak from someone who had seen material which could only have come from decryption (but not knowing anything about how or where this was done)
    3) a highlevel leak in bletchley or close to the brittish high command.

    Of these 1 and 2 would be far more likely and from a german perspective far better to have the brittish believe than if the had been option 3.

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  4. Re:Their value system is out of whack on Bletchley Park WWII Staff Finally Recognized · · Score: 2, Informative

    To protect whatever source they would have had that the British did their code-breaking at bletchley.

    The British had the same considerations when they had decrypted material; 'how much of it can we use before the Germans get the idea that we have broken their encryption'. Some times U-boats or supply ships was left alone even after their exact position was known in order to protect the fact that Enigma was broken.

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  5. Re:Polish Cipher Bureau cracked Enigma on Bletchley Park WWII Staff Finally Recognized · · Score: 2, Interesting

    Actually the Colossus was not used on the Enigma cipher, but instead on the Lorenz-cipher (somewhat similar to Enigma, but more complex) which was used by the german high command and the Nazi-top exclusively.

    The British build copies of the polish bombes, and after the Germans changed the day-key scheme, Turing designed a new version of the bombes which was capable to deal with that (once a proper 'crib' was found, often based on German wether reports which tended to be more stereotypical)

    Yours Yazeran

    Plan: to go to Mars one day with a hammer.

  6. Re:Their value system is out of whack on Bletchley Park WWII Staff Finally Recognized · · Score: 4, Interesting

    Actually what the germans would have done instead of trying to bomb bletchley (which they likely could have done using the knickebein , X-beam or Y-beam bombing system depending on date) was to change their encryption systems to something more secure.

    They made a number of errors in how thy used the Enigma (stereotypical messages, repetition of the message key etc.) which they could have corrected sooner had they known that the British (and notably the poles even before the war) had broken the Enigma.

    For instance the naval version of the Enigma was much harder to break than the standard army version as German marine was much more conscious about the above pitfalls and had a more complex Enigma.

    Yours Yazeran

    Plan: to go to mars with a hammer

  7. Re:Launching space tractors. on The Unmanned Air Force · · Score: 1

    Wrong on 2 out of 3.

    The Germans had a very well developed radar system from the beginning of the war. The Freya-gerat for long range search, Wurtzburg for short range ground intercept and control and Lichtenstein for short range airborne interception.

    It is true that Nazi Germany didn't have GPS (which requires satellites in orbit, something noone could do in 1945), but they did have a range of radio navigation aids of which the Knickebein system was the widest deployed (they also had the X- and Y- beam systems used for both bombing and interception of allied bombers).

    The Knikebein system was based on the Lorenz blind landing system, which is still being used today on all large airports, as the simplicity of the system requires only a functional AM-radio receiver to work (you can basically hear if you are on course or not as well as which side you have to move if you are not).

    Yours Yazeran

    Plan: to go to Mars one day with a hammer.

  8. Re:Launching space tractors. on The Unmanned Air Force · · Score: 1

    Doh, this should have been a reply note to the one a level higher up....

    Yazeran

  9. Re:Launching space tractors. on The Unmanned Air Force · · Score: 2, Informative

    Except that Nazi Germany basically invented all the technologies used in modern warfare

    1) Long endurance diesel electric submarines (type XXI, Elektroboote)
    2) Long range ballistic missiles (A4/V2)
    3) Jet propelled aircraft (both fighters, bombers and recon, notably ME-262)
    4) Cruise missiles (V1/FGZ-76)
    5) Smart bombs (Fritz-X and HS-293 glider bombs)
    6) Inertial navigation (A4/V2)

    Systems under development/not deployed
    1) Nuclear bomb / nuclear power
    2) Guided surface to air missiles (Wasserfall)
    3) Guided Air to Air missiles (Ruhrstahl X-4)

    All in all, only the digital computers (of which Nazi germany also made the first Turring complete one (Zuse Z3) have come later.

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  10. Re:Well... on AVG Virus Scanner Removes Critical Windows File · · Score: 1

    Yes which is the reason that you can delete, move or rename /vmunix without any problems (except when you some weeks in the future has to reboot and forgot what you did... :-)

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  11. Re:\LaTeX is not complex on Modern LaTeX Replacement? · · Score: 4, Interesting

    Actually it was the exact same thing for me. I did my masters in MS-Word in 98 and i hated it (open the document and all images shifted position.. .*ARGH*).

    When I started on my PhD, a colegue told me about LaTeX and gave me the 'Not so short guide' and I started writing using a simple template as starting point. It worked like a charm. Sure I have had my times where I had to fight a bit to get what i wanted (especially when I had to install the institute style class in order to finish my thesis).

    Also I have done papers in MS-word and LaTeX, and anyday I would choose Latex for an article, as getting the margins etc right for a MS-word publication is REALLY a pain whereas the journals supporting LaTeX have done it extremely simple by publishing style-classes. This makes submitting articles for review (where the layout must be different than the finished articel, e.g double linespacing etc.) MUCH less of a hasle than in Word/OO-Writer.

    So if you are serious about using a typesetting program, use LaTeX!

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  12. Re:Write a game on How To Encourage a Young Teen To Learn Programming? · · Score: 1

    Yep, That's the way to do it.

    My introduction to computer programming was in the form of a few games written in GW-BASIC on my dad's 8086 PC running DOS.

    When I got bored playing those i got curious and looked a bit on how they were made and my dad explained a bit about programming and after that I started creating a few games (think of simple pacman clones) and gradually expanded from there. From that I learned some very important lessons (notably that i really wold have liked local variables in functions, something GW-BASIC didn't have, as well as avoiding calling variables x1,x2,x3,x4..... :-)

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  13. Re:Once had life, but no more on Mars Orbiter Finds Evidence For Ancient Rivers, Lakes · · Score: 2, Insightful

    No we are not doomed in the case of a field reversal. There has been literally hundreds of field reversals during since the Jurasic and life survived without problems. We cvould survive as well with only minor ajustments (for instance magnetic compasses would not work and magnetic storms temporarily taking out power distribution systems more often etc.)

    The difference is that the magnetic field on Mars did not come back allowing billions of years without a field thus stripping the atmosphere.

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  14. Re:How is this different from Radio, TV Signals? on Does Active SETI Put Earth in Danger? · · Score: 1

    Not much if you substitute 'Radio and TV' with 'Military Radar' like the BMEWS systems which transmit at very high power and uses directional transmission instead of transmitting in all directions simultaneously. Any radio station (or TV) uses non directional antennas for transmission which invokes the inverse square law with distance. Directional transmissions (like Radar) can be detected much further.

    Although radar does not as of such transmit any useful information it is monochromatic (or nearly so) and pulsed indicating a clear artificial origin.

    So in effect, the Aliens may not watch our reruns of Seinfeld but they will detect the BMEWS signals and likely correctly identify them as military radar and thus the result of an aggressive species worried about incoming attacks and thus possibly someone to be taken out while they can..... (take a sphere of anything solid 1 mile in diameter and hurl it with 0.99 c at the earth should do the trick)...

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  15. Re:Energy source? on Photonic Laser Thruster Promises Earth to Mars in a Week · · Score: 2, Informative

    Well that is not a big problem. At least a couple of Mars probes have used atmospheric breaking to enter Mars orbit (called 'areocapture' i believe). While it is a tricky maneuver to get right, it can slow the spacecraft enough to enter a stationary orbit (do it wrong and you either burn up or 'skip' off the atmosphere and continue off into interplanetary space...) Fortunately Mars atmosphere is thin and has a higher 'scale height' than Earths atmosphere making the maneuver slightly easier on Mars, but still..

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  16. Re:Just 40% They say.. on The Potential of Geothermal Power · · Score: 1


    We've got heat exchangers, which means that we don't need very hot earth. Also, the temperature 20km down is quite sufficient to run a heat exchanger. Drilling a 20km hole is expensive, but not very difficult with modern bore rigs.

    Except if the energy is to be used for generating electricity, the temperature has to be high (and you can not increase the absolute temperature through heat exchangers) Furthermore, at 20km depth, no pore space exists for percolation of water (a necessity for generating more than ea few kW)

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  17. Just 40% They say.. on The Potential of Geothermal Power · · Score: 4, Informative

    Well they may be right that just 40% of the heat flow through the continental shield of the US may meet the energy demand 56k times over, the ticklish part is extracting the energy in an economic way. So far the only places where geothermal energy is usable is near active Volcanic areas where the geothermal gradient is steep enough to allow high temperatures near the surface and thus a high enough energy density to make the investment profitable (Think Iceland and California). All the other places the heat flow is too low to be usable for anything else than house heating.

    Another thing one must address is that the heat flow can only be used where permeable strata exists in the ground making it possible to circulate water to extract the heat. In places with crystalline bedrock, the heat flow can not be used.

    Yours Yazeran

    Plan: to go to Mars one day with a hammer.

  18. Re:The Irony on First Royal Mummy Found Since Tut is Identified · · Score: 1


    Anyone else find it ironic that these rulers enslaved entire races of people for generations to build gigantic pyramids so that they would never be forgotten only to have grave robbers steal everything and Western archaeologists show up thousands of years later asking, "Who the fuck were you?"


    Sorry to point out, but you are Wrong! The egyptians who build the pyramids and the royal tombs were highly skilled and decently paid workers. Archeologist have found the work camps of both the pyramid builders and the tomb workers, and they were in both cases quite decent standard considering the time.

    Secondly at that time the Nile still had its yearly flooding for 2 to 3 months each year where the whole Nile valley were flooded and thus no farming could be performed and thereby providing the Egyptian pharos with a work force of ordinary people. Thirdly, the rich soil of the Nile provided with a large surplus food supply (also used by the Roman emperors later to bribe the citizens of Rome) making it possible to pay workers to build the temples and pyramids.

    The Egyptians DID use slave labor though, but this was mainly in the silver and gold mines in the mountains near the red sea (and being sent to the mines as a slave was often equal to a death sentence.

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  19. Re:Two words: on France Bans BlackBerries In Govt. On Fears of Spying · · Score: 1

    Not to mention the case a few year back where an order went to Boeing all of a sudden (just a week or so before Airbus was to sign the contract) and although no direct evidence of electronic espionage was found (could just as easily have been a normal cover job involving some 100k $ in a suitcase) it was largely believed that some US agency had supplied Boeing with the terms of the Airbus deal so they could make a better offer to the buyer.

    Yours Yazeran

    Plan: To go to Mars one dya with a hammer.

  20. Re:practical, perhaps? on The Dangers of Improper Cookie Use · · Score: 2, Informative


    Oh well, I guess this is just another lesson in how marketers will shoot themselves in the foot. Animated gifs are abused, so i turn animation off. Cookies are abused, so i reject any cookie that is not obviously necessary. Flash is useful, but no way to request that it does not start automatically, so either I don't install it or install a hack to block it. I don't even see the product that is being advertised.


    Well just use Firefox with the Adblock and Flashblock extensions (ok addblock does not fix flash things, but once learned ignores most image advertizing.). Flashblock replaces any flash thing with a window frame with the same size but does not run the flash, and i think it does not even download it untill you bress the run button on the window frame.

    In my opinion Addblock and Flashblock are the two most important reasons to use Firefox.

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  21. Re:Nice neat little propulsion system! on Rocket Men · · Score: 1

    Well this propulsion system is not exactly new. I belive it was originally called the 'Walter cold rocket motor' in the 1930 in germany, and was used for providing energy for the turbopumps for the A4 rocket.

    In the case of the A4 rocket i think they used potassium permanganate, as this is even more reactive than silver when it comes to catalysing the peroxide to water and oxygen.

    Actually now when i think of it the same system was also used in the Redstone rockets of the 50's and 60 (which was basically just an upscaled A4 and was designed by Von Braun who also designed the A4
    .
    I'm deliberatly using the A4 designation for the V2 rocket, as the A4 was significantly better as a high altitude research platform than as a weapon..

    Yours Yazeran

    Plan: to go to Mars one day with a hammer.

  22. Re:I think the all time classic is........ on 10 Terrible Portrayals of Technology in Film · · Score: 1

    That would explain why they all of a sudden had no power for the shields.. All resources were used for processing and displaying the 'Install Wizard' .. :-)

    Yours Yazeran

    Plan: To go to Mars one day with a hammer

  23. Re:It is the same with the Baltic sea. on The Mystery of Oregon's 'Dead Zone' · · Score: 1

    Yes in a first strike situation without any warning or political heatup beforehand to give any hint of aggresion, you are right. But in reality, the navy always left the bases at the sligihtest hint of any tension (for the exact same reason, noone expected the basses to last 30 mins into a firefight). Once the submarines left the bases, they could block the Danish straits for days simply by beeing able to hide. As you state, the bulk of the Soviet navy was in the barents/murmansk area, but they still had significant naval bases in the Baltic (Koeningsberg and Leningrad), and all the shipping in those bases still had to pass the danish straits to do any good in the atlantic..

    The surface part of the Danish navy was not any obstacle for the soviets, neither was the land forces or to some extent the air force. Denmark is just not a defendable land area when it comes to modern warfare (and this is the reason for no US bases in denmark durring the cold war, noone expected Denmark to last more than 1-2 days in a conflict and in fact Denmark only got into NATO due to the fact that the US needed Greenland and danish membership of NATO solved some political problems in that respect).

    Yours Yazeran

    Plan: to go to Mars one day with a hammer.

  24. Re:It is the same with the Baltic sea. on The Mystery of Oregon's 'Dead Zone' · · Score: 1

    I think that you misunderstood my post.

    I did not claim that the Oregon case is due to polution from rivers or river induced hyaloclines (as you correctly state, no large rivers feeding water to the affected areas). I only speculated that the Oregon case may be a result of human activity, altohugh natural upwelling may also result in the observed phenomena as others have pointed out (including the article..)

    Yours Yazeran

    Plan: To go to Mars one day with a hammer.

  25. Re:It is the same with the Baltic sea. on The Mystery of Oregon's 'Dead Zone' · · Score: 1

    Well that depends on the definition i guess (Wikipedia). Although Denmark does not have any of the typical fjords (as we have no mountains), the term fjord is used for any narrow inlet, of which Denmark has many. They are also the result of glaciation like the ones in Norway, although the lack of bedrock to make them truely spectacular (like sognefjord in Norway) make them just long narrow inlets.

    For the interested, take a look at google earth and find the east cost of Jutland (the peninsular north of Germany) for some good examples of Danish Fjords.

    Yours Yazeran

    Plan: to go to Mars one day with a hammer.