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User: MichaelSmith

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  1. Re:Spiral compression waves on Why Haven't the Arms of Spiral Galaxies Wound Up After All This Time? (forbes.com) · · Score: 1
  2. Re:Spiral compression waves on Why Haven't the Arms of Spiral Galaxies Wound Up After All This Time? (forbes.com) · · Score: 1

    Keep in mind that the most luminous stars are the most short lived. Its possible to imagine a wave propagating through a medium where the life time of the brightest stars determines the part of the wave which is visible from a great distance.

  3. Spiral compression waves on Why Haven't the Arms of Spiral Galaxies Wound Up After All This Time? (forbes.com) · · Score: 4, Informative

    Spiral arms are not solid structures which can wind up. They are zones of star formation created by waves which propagate through the galaxy.

  4. Re:Heh, "OS" on Elementary OS 0.3.2 "Freya" Released · · Score: 1

    Yet Another Ubuntu Derivative.

  5. Lots of crinkly coastlines on New Horizons' First Ultra High Resolution Photos of Pluto Released · · Score: 2

    Slartibartfast must be proud.

  6. Re:How about a Moon rover? on Apollo 16 Booster Impact Site Found (asu.edu) · · Score: 1

    There is only one way to find out for sure. I volunteer for this task.

  7. Re:How about a Moon rover? on Apollo 16 Booster Impact Site Found (asu.edu) · · Score: 1

    My guess based on the description is that it would look like a crash site and the nature of the impactor would be fairly obvious. The booster would be largely intact, but distorted like a crushed coke can.

  8. Re:I did not know that on Apollo 16 Booster Impact Site Found (asu.edu) · · Score: 4, Informative

    A good example is with the PLSS (personal life support systems) used by Apollo astronauts. These systems were small versions of the life support system in their vehicles, they filtered CO2 from the air. The Russian systems were more like SCUBA gear and could only operate for a short time. Russian plans for operation on the moon showed that the astronauts would have to be tethered to their vehicles most of the time, while US astronauts did eight hour EVAs and drove 20km across the surface in a day.

  9. There are, after all, plenty of non-iPhone devices that still use the 3.5mm connection

    I thought the headphone socket on phones was much smaller than that.

  10. Re:What a coincidence on Ubuntu 16.04 LTS Will Ship With Linux Kernel 4.4 LTS · · Score: 1

    This is on an HP Pavillion 11 inch laptop. Not the best hardware and almost certainly my last HP device. It seems to be associated with use of an external monitor connected with HDMI. I had one or two hangs over several months on 15.04 but on 15.10 its every day. I will most likely go back to 14.04 for the time being.

  11. What a coincidence on Ubuntu 16.04 LTS Will Ship With Linux Kernel 4.4 LTS · · Score: 3

    Just as I scrolled into this article, 15.10 hung on me again.

  12. Social networking policies on Israel 'To Review' Top Appointment After Facebook Controversy (bbc.com) · · Score: 2

    I work for a small internet services company and they have a better social networking policy than the government of Israel.

  13. Contamination on Cassini Probe Will Dive Through Enceladus's Water Jets (nasa.gov) · · Score: 1

    There might be life on Ecelandus, and after this close pass, there might be life on the Cassini probe too. So when cassini reaches end of life, it will most likely be crashed in to something, probably Saturn, but does this risk transferring organisms from Ecelandus to Saturn?

  14. Better get Julian a fast car with a turbine engine and a cooling system.

  15. Bullshit on Volkswagen Boss Blames Software Engineers For Scandal (bbc.co.uk) · · Score: 1

    A company like VW would involve people at all levels in the design of a vehicle. Performance requirements would be specified at an early stage. If a product suddenly started performing well above spec due to broken tests, the discrepancy would be obvious to all concerned.

    VW are not a backyard operation.

  16. Let me guess.. on Michigan Mammoth May Have Been Butchered By Humans · · Score: 1

    One of those humans was wearing a wristwatch

  17. Motorola on How Steve Jobs Outsmarted Carly Fiorina · · Score: 3, Informative

    There was a deal with Motorola too, to put a music player on a phone, which was limited to 100 songs or something. At the time I thought Apple came out ahead on that one.

  18. Re:Radiohead fans? on GCHQ Tried To Track Web Visits of "Every Visible User On Internet" · · Score: 2

    https://www.youtube.com/watch?...

    This is what you get when you mess with us...

  19. Re:Wasn't the noise an issue? on Club Concorde Wants To Put a Concorde Back In the Air · · Score: 1

    Given that one of these aircraft demolished a hotel in France (more or less) recently one might expect the regulatory environment to be a bit different now,

    That incident killed about 7 (or 9?) people on the ground - I was attending a meeting there recently, so thought about it a bit - but fundamentally it wasn't the Concorde's fault. It was the previous plane on the runway which had shed a large lump of debris. Sure, having better self-sealing on the Concorde wing fuel tanks might have helped it to survive long enough to hard-land at the diversion airport they attempted at Le Bourget.

    But also the long cord of concorde wings makes it more likely that a disintegrating tire will puncture a tank.

  20. Re:How do they plan to maintain it? on Club Concorde Wants To Put a Concorde Back In the Air · · Score: 1

    Sorry I don't agree. Bentley will never have the quality of Mercedes or Toyota. They don't have enough eyes on the job.

  21. It used to be economic to spend a month on a ship, paying hotel rates for labour but thats just too expensive now, so you pay less money to spend a day on a plane to go half way around the Earth. But at some point the cost of labour will rise to the point where that one day is too expensive as well, so it will be economic to develop faster aircraft which cost less in manpower to run. Even now an SST could get away with less in cabin staff, fewer changes of crew, etc.

  22. Re:How do they plan to maintain it? on Club Concorde Wants To Put a Concorde Back In the Air · · Score: 1

    So yea you really can just order the parts, with the design from the local certified machine shop.

    you really don't know what goes into the process of manufacturing turbine blades, do you?

    The aircraft industry has moved on from the 1960s and I would argue that is is next to impossible for a small, bespoke operation to deliver components with the same level of quality as a large scale production process. Aircraft parts are made for fleets of around a thousand aircraft. Large scale means that your production and testing processes can be highly repeatable.

    Its like asking how expensive it would be to make ten modern CPUs from scratch, and get them working as well as one from the shop. Impossible? Or merely difficult?

  23. Re:How do they plan to maintain it? on Club Concorde Wants To Put a Concorde Back In the Air · · Score: 1

    If Virgin can take you to space for $200k,

    Yeah, if.

  24. Re:Wasn't the noise an issue? on Club Concorde Wants To Put a Concorde Back In the Air · · Score: 1

    Given that one of these aircraft demolished a hotel in France (more or less) recently one might expect the regulatory environment to be a bit different now,

  25. But it did look like a "movie" bomb on Obama Invites Texas Teen To White House After "Bomb" Clock Incident At School · · Score: 1

    He probably just put it in the aluminium case to help carry it but that made it look like the sort of thing bad guys mock up in movies. Of course it didn't look like a real terrorist bomb. They look like vending machines, telephones, etc.