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User: Latent+Heat

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  1. What is your take on door slams? We have these "door closers" that let the door close gently until the last 10 cm, when the door is given a slam, giving a loud "kerchunk" of metal slapping against metal of the door handle latches.

    One door on my hallway got considerably quieter when a maintenance person adjusted its closer to not slam so hard, but it took him a lot of tinkering and he also use some special spray lubricant to damp down the metal-on-metal slap.

    I thought of adjusting the slam of the other doors with one new closer requiring a special hex wrench to do this with the other closers being ancient models for which there is no info on the Web. No, the door slams don't silence the voice in my head, but they sure as anything shakes a person out-of-the-zone during coding or reading a technical article where one is trying to think through multiple ideas in one's head.

  2. This won't end well on Scientists Discover a New Way To Use DNA As a Storage Device (betanews.com) · · Score: 1

    "The antibiotics tetracycline and streptomycin are used to control this process"

    What happens when generations of the bacteria develop resistance?

  3. You bake the crackers on Why Paper Jams Persist (newyorker.com) · · Score: 1

    into a pie filling, not the box.

  4. Mock apple pie on Why Paper Jams Persist (newyorker.com) · · Score: 1

    The same people who bake pies using Ritz crackers for the filling? The recipe is on the Ritz box, but has anyone ever eaten such a thing?

  5. Electric car analogy on Elon Musk Explains Why SpaceX Prefers Clusters of Small Engines (arstechnica.com) · · Score: 2

    This preference for engine clusters is like using a stuff-ton of laptop cells instead of a much smaller number of automotive cells in the Tesla battery pack?

  6. Mr. Musk indeed knows his audience on Elon Musk Sells $10 Million in Flamethrowers in Four Days (reuters.com) · · Score: 4, Insightful

    He knows how to charge people $400 for a weed-removal product used in landscape maintenance that you can get for $30 at Harbor Freight. Brilliant!

  7. Donald Norman on Should Apps Replace Title Bars with Header Bars? (gnome.org) · · Score: 1

    . . . said pretty much the same thing, but he never expressed those thoughts quite that elegantly.

  8. End of Kemalism on A Single Line of Computer Code Put Thousands of Innocent Turks in Jail (www.cbc.ca) · · Score: 4, Interesting

    There is more to the story.

    There was this man named Mustapha Kemal. He was a war hero in WW-I for resisting the British and allied forces at Gallipoli. This fight was a disaster for the British side but it was a proud moment on the Turkish side.

    This man rose to becoming the leader of Turkey, and he embarked upon a system of reforms. Whereas he became famous for fighting the British, there is a sense that he believed that Turkey was fighting on the wrong side in WW-I, or maybe he thought Turkey's resisting the British at Gallipoli was a close thing, so he wanted Turkey to become more like the British or at least to be Westernized.

    He issued an executive order that writing the Turkish language change over from Arabic script to the Roman alphabet. He ordered that men and women wear Western style clothing and banned the male (fez) and female (head scarves) clothing associated with devotion to the Islamic religion. He renamed himself to Kemal Ataturk, the name meaning "Father of the Turks" as in founder of the modern secularist Turkey.

    He also set up this system of where the military would be the protector of his new secular Turkish-nationalist order. The arrangement was that the military was to stay out of politics, but were a leader to threaten to overturn the New Secularist Order, they were pledged to overthrow that government, restore the secularist system, and then return the government to civilian control. I am told that Turkey went through several cycles of this prior to Mr. Erdogan.

    This last but failed coup attempt was the last vestige of the Kemalist system. Mr. Erdogan's repression of this was a Caesar Crossing the Rubicon moment, the fictional Galactic Emperor closing down the Senate.

    With Kaddafi and Saddam gone, the last holdouts of a multi-cul secularist society in the Arab world are Sisi in Egypt and Assad in Syria and maybe, maybe, bin Salman in Saudi is moving in that direction. bin Salman will never support Assad because of his Iranian ties, and bin Salman's grand strategy is to pitch the Palestinians over the side to make peace with Israel to oppose Iranian power.

    My crazy brand strategy is that we should join forces with Russia and Assad and overthrow Erdogan. The man is really that bad to want to do this. My connection to that part of the world casts my sympathies with Kemalism, and Erdogan is the point-of-no-return for Turkey.

  9. U.S. Navy pilots will orbit only two such objects on Rocket Lab Criticized For Launching Their Own Private 'Star' Into Orbit (newsweek.com) · · Score: 1

    with a shiny cylinder in the middle?

    https://www.bing.com/videos/se...

  10. If you make a $600 deposit on Elon Musk's Boring Company Delivers $600 Flamethrower (theverge.com) · · Score: 1

    do you get a Founder's Series flamethrower?

  11. The BLAND Corporation on Pentagon Document Confirms Existence of Russian Doomsday Torpedo (popularmechanics.com) · · Score: 1

    looked into it and rejected it because of what is happening right now.

  12. Unmanned planet killer roaming the galaxy on Pentagon Document Confirms Existence of Russian Doomsday Torpedo (popularmechanics.com) · · Score: 1

    Matt, where's your crew?

    I beamed them down to the Third Planet.

    There is no Third Planet.

    Don't you think I know that? There was . . . but not anymore!

  13. Le Telephon-Photographique on France Says 'Au Revoir' to the Word 'Smartphone' (smithsonianmag.com) · · Score: 1

    The French already have a word for this device, dating back to novelist Jules Verne -- see https://entertainment.theonion...

  14. What is this story doing on Slashdot? on Apple Health Data Is Being Used As Evidence In a Rape and Murder Investigation (vice.com) · · Score: -1, Troll

    You are only feeding the alt-Right trolls with respect to Germany's empathy towards refugees.

  15. Car on blocks in the front yard on How Do You Vote? 50 Million Google Images Give a Clue (nytimes.com) · · Score: 1

    How hard is this predicting-votes-from-an-image anyway? Let's look for some clues.

    A brand-new shiny F-250 Super Duty Turbo Diesel parked in the driveway to a ramshackle house?

    The name of a roofing business painted on this truck?

    A rusted 1990 Buick LeSabre with the hood up parked on the front lawn?

    An NRA bumper sticker on each vehicle?

    A Trump-Pence sign hand painted on a 4X8 sheet facing the roadway?

  16. How about a superhero film made by Disney? on Movie Ticket Sales Hit A 22-Year Low in 2017 (msn.com) · · Score: 4, Interesting

    How about a Disney superhero film that checks off each of your points labeled 1-4? Doesn't The Last Jedi satisfy each and every one of these requirements?

  17. Hydro needs to be used as a "peaker" to balance wind and solar. Using it for baseload let alone 100% is being anti-social.

  18. How does this compare with Toyota? on Insurers Are Rewarding Tesla Owners For Using Autopilot (reuters.com) · · Score: 1

    How does Autopilot compare with "Forward collision warning, auto-pedestrian detection with auto braking, lane-departure warning and driver lane assist with adaptive cruise control"? I guess it has this long name because "Autopilot" (for an automobile) is already trademarked?

    This whole shebang is standard on the 2018 Camry and an option on the Ford Fusion. I believe the sensors are millimeter-wave radar and cameras.

  19. The theatre was only a metaphor on Stock Music Artists Aren't Always Happy About How Their Music Is Used (wired.com) · · Score: 1

    for locking up a dude who encouraged others to resist the draft for what he regarded as an unjust war.

    https://en.wikipedia.org/wiki/...

    So a patriotic musician could have their tunes used by hippies and anti-war demonstrators?

  20. You just described a good engineer on In Defense of Project Management For Software Teams (techbeacon.com) · · Score: 1

    What you just described, especially in realistic expectations of performance, allowing for contingencies and conducting verification through testing, such pretty much describes established practices in engineering.

  21. In German, it is pronounced "Yes-us" on Volkswagen To Spend Over $40 Billion on Electric and Self-Driving Cars (reuters.com) · · Score: 1

    In many languages-other-than-English, the "J" is actually a "Y" sound, that is how we got from Yahshuah to Jesus and from YWYH to Jehovah -- see http://www.bing.com/videos/sea...

  22. You must be new around here on NASA Funds Designs for a Nuclear Thermal Propulsion Rocket (space.com) · · Score: 1

    because you know what you are talking about.

  23. Space radiators on NASA Funds Designs for a Nuclear Thermal Propulsion Rocket (space.com) · · Score: 5, Informative

    If you are going with a high specific impulse and also greater-than-micro thrust propulsion system, you will need some kind of thermodynamic cycle to generate the required electric power, and that cycle will need to reject heat. Furthermore, the heat rejection for the cold side of that cycle into vacuum involves Stefan-Boltzmann T^4 limited radiators -- the "radiator" in your aging apartment building benefits from convection of air that is not on option in space.

    Even a photovoltaic cell is subject to the Carnot limit on efficiency. The solar cell has the advantage that the hot side is surface-of-the-Sun hot in terms of the radiation spectrum of the impinging light whereas you have large surface area of the panels to radiate from the cold side. However clumsy and bulky solar panels are, you will need something almost as clumsy and bulky for radiators for a nuclear energy cycle to generate electricity venturing farther out from the Sun.

    Is Discovery a nuclear-electric craft? In the 2001 A Space Odyssey genre of science fiction, you still get to wave your hands a lot even though it was meant to portray a plausible near-term future rather than warp drives and Star Trek transporters. Early concepts of Discovery had large space radiators making it dragonfly-like in appearance, but that wasn't "cool" so it ended up with this thin spine with the habitat at one end and presumably the nuclear power plant way at the other end. I never did figure out what those "pods" or "bunkers" were along the spine -- too small for cryogenic propellant storage, too small for proper Stefan-Boltzman fourth-power-of-surface-temperature radiators.

    There are crazy concepts for more effective space radiators involving spraying water or pellets to get enormous surface area and then somehow recapturing the water or solid pellets so you don't end up losing them. Discovery didn't seem to depict that system.

    And then there is nuclear thermal, but those are much lower specific impulse, not that much better than chemical rockets, especially when you consider the bulk of liquid hydrogen tanks and the weight of the nuclear reactor. Your "radiator" (Carnot-cycle cold side) is to blast H2 molecules out your rocket nozzles, a lot of H2 molecules. We have come full circle from the NERVA project of the 60's to VASIMIR or whatever kind of much higher impulse nuclear or solar-electric propulsion back to nuclear thermal, again?

  24. College Curriculum Committee Meeting on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    Thanks for the tip on the Julia language for numerical work.

    A proposal came up in committee for an Engineering course emphasizing numerical programming. Julia was in the list of languages along with Matlab and maybe one other that the instructor proposed to approve for student projects. I didn't question that because we give a course proposer latitude in that sort of thing, but I wondered whether that was an odd personal preference by that instructor. One comment below suggests that Java is an odd personal preference on my part, but we actually have an introductory programming class taught in Java "on the books."

    I now know that Julia is a language other people are adopting for that use.

  25. Native-code Java? on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 2

    Could you accomplish what you ask for by coming out with a native-code version of Java? Maybe ditch the GC and replace it with best-practice non-GC memory management "smart pointers"?

    Back when Sun Microsystems was the fiercely protective parent of Java, such a thing wouldn't be Java and they would sue your backside if you tried to call it Java.

    But are not Rust, Go, and Swift essentially native-code versions of Java? If not rigorously adhering to Java, are they not attempts to ditch the preprocessor, provide a module system and namespaces, properly define behavior and improve safety, in a native-code setting?

    They are native code, because if they are managed code, what is the point of not using Java, or if you want a different language, at least adapting it to the JVM (cough, C#, cough)?