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User: Bruce+Perens

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  1. Re:Reusablility problems on SpaceX Plans to Start Launching Rockets Every Two To Three Weeks (fortune.com) · · Score: 1

    There is no third stage. The second stage has one engine. The first stage has nine engines. Guess which one is more expensive? :-)

  2. Well, wait a minute... on Apple's Ultra Accessory Connector Dashes Any Hopes of a USB-C iPhone (theverge.com) · · Score: 4, Funny

    Whose UID is low?

  3. Re:They'll Go Underground on Reddit Bans Far-Right Groups Altright and Alternativeright (theguardian.com) · · Score: 3, Insightful

    Oh? Where are those folks? I remember them from previous elections. It seems that the main thing they're doing now is to stand by in the hope that the fascists in power will give them what they want. But the collateral damage is going to be so big, that it's hardly going to be a win for them.

  4. Re:Good design on Airbus Is About To Build A Self-Flying Electric Robo-Taxi (fastcompany.com) · · Score: 2

    Well, I'm not an aviation professional either, and that might be the problem. Non-aviation-professionals underestimate all of the issues in making this work. Hey, we sent a man to the moon, right? How difficult could it be to make a flying car?

    I would have been less sarcastic if they had shown an operating prototype rather than a 3D rendering. A 3D rendering means they haven't started to see if they can really address all of the issues.

    Oh, and Moller is about to make their version, too! Since about 1950.

  5. The Word From Marketing on Airbus Is About To Build A Self-Flying Electric Robo-Taxi (fastcompany.com) · · Score: 5, Interesting

    The Word from Management is that we have to do something innovative, or we're out of all of those subsidies! Our countries are looking at all of that Musk stuff: electric cars, rockets that land and can be reused. We need to do something different! But not more electric cars or rockets that can be reused, we can't do the same different. We need different different! So, Marketing says Flying Cars! After all, haven't you heard people asking, since the 1950's, Where Are Our Flying Cars?, Well, we're going to have the answer! Here are your flying cars! We have a great 3D rendering of them! Now, half of the people can't tell 3D renderings from the real thing, and Engineering has to make it work now, so we're off the hook and it's more subsidies for everyone this year! Of course, Engineering had better make it work, or they're out!

  6. Re:I know it's fun to make fun of Homeopathy on FDA Confirms Toxicity of Homeopathic Baby Products; Maker Refuses To Recall (arstechnica.com) · · Score: 1

    The problem is that you are still thinking of facts as "true" or "false". And obviously this has been popular since the Renaissance. But we are now in the Age of Alternative Facts, and if someone disputes the efficacy of a quack product, they can be debunked using ad hominem arguments without reference to factual information. The framework of law in which you live now works this way, better get with the program!

  7. In both the case of Tesla and of SpaceX, Elon took an existing product that was being held back by entrenched manufacturers, and removed the hold. The technology to make great electric cars already existed. Rockets similar to the Falcon 9 already existed.

    Putting people in evacuated tunnels and moving them really quickly is not the same sort of solved problem. The closest thing we have is flying them in jets, where there is miles of space between the jets as a buffer rather than fractions of an inch of mechanical tolerance on rails. We also don't send people up in spacesuits to maintain the "tracks" that jet planes fly upon.

    So, if Elon is going to take 20 years to dig his tunnel and will start today, he can have a train design when he's finished. But that won't solve the problem of his commute before he's 64 and possibly ready to retire.

  8. See this reply.

  9. Development time between now and a hyperloop that works, is relatively safe, economical to run, can be maintained economically, and is desirable for the customer is at least a decade, possibly two, and might never complete. Most of the issues are around it being evacuated.

  10. He needs to buy Piz Gloria first.

  11. When there's a jet plane that takes you to the grocery store. That is not what trains are for. Elon's issue is getting from Hawthorne to/from LAX, where having his car would be inconvenient and expensive.

  12. It's better to run trains in them, for that reason. Unfortunately Elon is likely to insist on hyperloop trains instead of normal ones, when normal ones would do the job, go quite fast if you design them to, and would get done.

  13. Re:Caffeine is one of the drugs the most used on Caffeine May Counter Age-Related Inflammation, Says Study (stanford.edu) · · Score: 1

    A box of "True Lemon", about $40 for a bulk box 500 little packets, will give you a year's worth of lemon in your water. I started to get gout. But not since I increased my citric acid intake.

  14. Re:IT is amazing on Caffeine May Counter Age-Related Inflammation, Says Study (stanford.edu) · · Score: 5, Insightful

    Most folks drink stale coffee. Try roasting your own (I use Sweet Maria's for supplies) or going somewhere with a roaster on site who is honest enough to tell you the roast date. It should be from 2 to 10 days ago. Flavor development in coffee is a rancidification process. Like cheese, you want to catch it when it is a little, but not too, rancid.

  15. Re:...Or Just Take Aspirin. on Caffeine May Counter Age-Related Inflammation, Says Study (stanford.edu) · · Score: 3, Informative

    Soldiers were historically prescribed "ABC" for minor discomfort, acetominophen (which some parts of the world call paracetomol), buffered aspirin, cafffine. But consumer over-the-counter aspirin is not generally formulated with caffine as the military version was.

  16. Re:...Or Just Take Aspirin. on Caffeine May Counter Age-Related Inflammation, Says Study (stanford.edu) · · Score: 2

    Let's not forget the effect of helicobacter pylori bacteria on ulcers, they are in general held to be the main cause these days.

    I have another theory about the beneficial effect of aspirin, caffine, etc. We evolved with them. Our diet was rich in salycilates and chemicals similar to theobromine or caffine. They came from the plants we ate, some of which were mildly toxic and which we evolved to process to the point that we became dependent on some of their effects. There are a lot of things in the primitive diet that modern people don't eat much at all, like acorns which had to be soaked to remove alkalai and tannin.

    If this is the case, taking aspirin and drinking coffee or tea replace substances found in a more primitive diet.

  17. Re: Not really needed for drones on Amazon Seeks FCC Permission To Run Wireless Tests In Washington State (csmonitor.com) · · Score: 1

    Modulation designators that state the payload type don't make much sense with digital data transports. You can do digital TV or anything else with 4 MHz bandwidth. Cellular doesn't make much sense unless they have a really long hover time and drone life, in which case it could be a pop-up base station.

  18. Re: Not really needed for drones on Amazon Seeks FCC Permission To Run Wireless Tests In Washington State (csmonitor.com) · · Score: 1

    It's enough for television, but there are easier ways to do that. The only other thing I can think of is Drone based cell site survey.

  19. Re: Not really needed for drones on Amazon Seeks FCC Permission To Run Wireless Tests In Washington State (csmonitor.com) · · Score: 1

    There are the ISM bands and other bands licensed for radar. Also, the wavelengths of the requested frequencies seem a bit long for short range, high precision radar.

  20. Not really needed for drones on Amazon Seeks FCC Permission To Run Wireless Tests In Washington State (csmonitor.com) · · Score: 2

    If this was a drone and was just using the mobile frequencies for communication, it would probably use an off-the-shelf cellular modem module to communicate normally over the cellular network. A special testing authority from the FCC would not be necessary.

  21. Re: "clear" is an exaggeration on Open Source Codec Encodes Voice Into Only 700 Bits Per Second (rowetel.com) · · Score: 1

    All the hams I spoke with this evening are wondering why you find it difficult to copy. No kidding. We seem to have trained our ears on the analog radios over marginal paths.

  22. Re: Darn typos making my post unreadable on Open Source Codec Encodes Voice Into Only 700 Bits Per Second (rowetel.com) · · Score: 2

    I am very glad that fight is over. And as far as I can tell, we saved Amateur Radio entirely. It would have died in our lifetimes.

  23. Re:sequential access vs random access on Open Source Codec Encodes Voice Into Only 700 Bits Per Second (rowetel.com) · · Score: 1

    This is not, however, a waveform codec. It models the human voice tract, and encodes the parameters of that, rather than any waveform.

  24. Re:This issy awe so nudes on Open Source Codec Encodes Voice Into Only 700 Bits Per Second (rowetel.com) · · Score: 2
  25. Re:Close on Open Source Codec Encodes Voice Into Only 700 Bits Per Second (rowetel.com) · · Score: 4, Informative

    Lots of people ask about this. If we did pure speech-to-text and text-to-speech, it would take about half the bandwidth but everybody would have the same synthesized voice. Once you start trying to add parameters to the synthesized voice such as pitch, speed, and tonality, those take as much bandwidth as we are using for the entire codec, because they are essentially the same parameters.