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User: SEWilco

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  1. Polluted Wood? on Ecological Engineering · · Score: 2
    Yes, fortunately he apparently abandoned his original idea of using trees from roadway areas for housing heat. Burning wood with the metals which he mentions would spread the metals around the neighborhood.

    The advantage of doing this is that the trees remove the pollutants from hard-to-clean soil and concentrate it in wood. Wood is chemically much simpler and can be dealt with in other ways. If nothing else, the contaminated wood can be transported to a better disposal facility (ie, removing lead and chromium from areas near housing). Wood can be incinerated and the metals trapped in ash and stack filters. Wood can be dumped in molten iron and the metals become part of the mix or the slag. Eventually, we'll be able to dump them into industrial-sized mass spectrometers and separate all the individual elements (once we get thermal furnaces about 10 times hotter)...but may as well get them growing now so we can harvest them and move the pollutants someplace safer.

    Of course, many organics just need the biosystem around the roots to get degraded. The trees may leak some organic fumes, but the site was going to leak that stuff anyway either downward or upward more slowly.

  2. Why Poplar Popular? on Ecological Engineering · · Score: 2

    He mentioned that poplar grow quickly (thus convert more nutrients quickly), and they can produce roots from the trunk (thus easy to grow and some options for shaping a root field). That's what is important about them.

  3. Re:I worked there, and find it hard to believe on Did NASA Know Mars Polar Lander Would Fail? · · Score: 1

    It's not easy engineering. Anyone can see some examples in the Space Mechanisms Lessons Learned Study. Miss one lesson, or discover a new one, and there's no way to fix what you already built...

  4. Re:This was a test flight on Did NASA Know Mars Polar Lander Would Fail? · · Score: 1

    My point was that each probe is designed and built separately from others. There is no standard "Mars Lander" device, so for each probe the engineers have to re-apply lessons learned: heat the explosive bolts so they'll operate properly, force liquids against pump intake ports, anchor cables well to avoid oscillations, shield power cables from EM/photon sensitive devices...etc. The engineers try very hard to deal with all the issues, but they have to start from paper and build up rather than having tested designs to literally build upon.

  5. Failures Expected During Testing on Did NASA Know Mars Polar Lander Would Fail? · · Score: 2
    NASA is still testing technologies, so failures should be expected. Each probe is being built from the ground up without being able to use many standardized engineering modules. Once they have a technology which does the job they'll be able to standardize and get more reliability. Eventually they'll have a generic "Mars Lander" device which deals with the transportation and power problems, and at that point they can just bolt on the experiments that are wanted on the surface.

    They're not at that point yet, which is why we're seeing bouncing-airbag on one mission and parachute/rocket on the next (and no-parachute penetration probes).

  6. Better Ads on CmdrTaco's Week with Tivo · · Score: 1
    If TiVo recognizes commercials, have TiVo accept Thumbs Up/Down for commercials. It can collect unviewed commercials and present those to replace the type you indicated that you don't like... advertisers could be mollified -- particularly if you can only use this ability if you allow anonymous ad feedback to be sent back.

    Just make sure the protocol (and perhaps source) is public, so anyone can audit what type of data is sent. Right now Aureate is having similar "privacy" problems because they're closed and not being trusted.

  7. Auction Under Way on $6 System-On-A-Chip Mimics Human Vision · · Score: 1

    This Yahoo story says the auction of the technology is under way now.

  8. Another detail wrong in Yahoo story on It Came From Beyond ... In Buckyballs! · · Score: 1
    Most of the carbon in our bodies came from outside the solar system,'' Bunch said. ``We're all aliens.''
    Another detail in the Yahoo story which is not quite right. ALL of the carbon in our bodies was created in ancient supernova reactions. The only thing in our solar system which can create carbon is the Sun but it's presently running on the Hydrogen->Helium reaction (its early Lithium reaction wouldn't produce Carbon either).

    "We are stardust..."

  9. Re:Remote-control warfare on Cracking Military Devices · · Score: 1

    Let's not forget David's Sling, featuring self-controlled weapons with remote links. The focus is on development and use of the weapons, not network attacks.

  10. Re:Cracker on Cracking Military Devices · · Score: 1

    It depends whether the intruder is merely breaking in or is improving the system once inside. The hard part is getting the commander to actually add the new documentation from the navigation printer to the system manuals...

  11. Re:Where's the Pentagon? on Cracking Military Devices · · Score: 1

    Doesn't matter, in an M1A1 that's only about enough to turn around.

  12. Re:MiniDisc Data on Cool Japanese Gadgets You Can't Have · · Score: 1

    See MiniDisc.Org for a list of sources. There's also a page on MD data devices.

  13. Re:geek heaven - a country full of technotoys on Cool Japanese Gadgets You Can't Have · · Score: 1

    xfishtank on a laptop. Cats can see an LCD screen and they will be interested for a while...but make sure they can't reach it with their claws.

  14. Contest Deadline? on DeCSS To Be Broadcast Over Oz TV · · Score: 1
    Okay, so when is the deadline for that contest? The link in this article only says that the rules for the contest were being finalized and the contest would probably begin March 1st.

    Perhaps you meant the completed "Great International DVD Source Code Distribution Contest"

  15. Re:You really want to know why? on NYTimes on IBM and Linux · · Score: 1

    Okay, so they could just make their existing MWave driver source code public. Then at least we could implement similar Linux drivers and use the hardware in the same way. More documentation would allow making more use of the hardware, but that's not needed when simply porting existing code (except in odd situations where code does not show hardware timing issues).

  16. What, Me Travel? on Do Geeks Have a Political Voice? · · Score: 1

    We should use fuel to actually physically move?

  17. No Native Crusoe Linux on C'T visits Transmeta · · Score: 1

    Hmm. It mentions experimentation with a native Crusoe Linux, but the emulated x86 version was better. One case where a native port may not be worth the trouble (particularly with the code differences between the chips).

  18. Top heavy on cap hill on Do Geeks Have a Political Voice? · · Score: 2
    Well, our VP can't find email lost on White House servers for years. Estimates $3 million and 2 years to repair. And when the problem was discovered years ago, rather than fix it, the techie who found it was threatened and the lost "Project X" mail was classified a secret.

    Now that's a technical innovation. And one techie without much influence in a political situation. Various news sources have been noticing the story at various levels this week.

  19. Amateur Radio lobby on Do Geeks Have a Political Voice? · · Score: 1

    Amateur Radio is presently the largest technical politically-active group. Special laws, special license plates, privileges in emergency situations...

  20. First Person Mapping? on GIS Web Mapping? · · Score: 1
    I'm sure Perl could convert your GIS data into a Doom or Quake map. But I suspect you didn't intend to make the "You Are Here arrow" be a weapon...

    Mapping the library holdings into the Library Map and implementing "shoot-requested-book" is left as an exercise for the reader.

  21. MS-Windows SMB defined? on Learn from Samba-Man Jeremy Allison · · Score: 2

    Has Microsoft ever documented their "Windows Networking" implementation of the SMB protocol? (Yes, I know this is their name for SMB, I'm wondering about their documentation policy/results)

  22. NY Times Server Failure on NYTimes on IBM and Linux · · Score: 1
    If you're having problems seeing the article because you only see a blank page, wait a little while. The NY Times server for that department says:
    Server Error
    We're sorry, but we are temporarily experiencing a server error. Our systems administrators have been notified and are working to fix the problem. Please wait a few moments, then press Reload or Refresh in your Web browser. If the problem persists, please exit your Web browser and try again. We regret the inconvenience.
  23. Most secure OSes on 'Experts' Back To Claiming Open Source Insecure · · Score: 2
  24. Re:You want to design a secure lock? on 'Experts' Back To Claiming Open Source Insecure · · Score: 1

    Wrong experts. If you want a secure lock, you have it reviewed by locksmiths and lock pickers, not cat burglars. The specialty of a cat burglar is stealth, not locks (although some skill with locks is often useful with that specialty). A cat burglar can enter and steal from an occupied building without being seen, even a room where people are sleeping. Hollywood has several examples...on-line it is easy to find examples of failed cat burglars.

  25. News Direct From IBM Research on IBM's Nanotech Drive Research · · Score: 3

    News Release direct from the IBM Research server. Notice they hope to get down to a single magnetic grain eventually, for a density increase of 1,000,000 rather than the mere 100 which this 10-times-smaller allows.