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Technology: Are fabricators and 3d printers the future of manufacturing?

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    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013
     
    After the union you can winter in plus 45 C.
    •  
      CommentAuthorAngus
    • CommentTimeSep 24th 2013
     
    Don't we get to average out the temperature? Still cold, though.
    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013
     
    22.5 C. cold?
    •  
      CommentAuthorAngus
    • CommentTimeSep 24th 2013
     
    OK let's go through this for Trim.

    45C = 273+45 K
    -45C=273-45 K

    Average is (273-45+273+45)/2=273 K

    =0 C

    Which I consider to be lukewarm but many would consider cold.
    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013 edited
     
    I prefer my way. It's warmer.

    Maybe rafts of Pykrete could be towed down under, from Canada when they are having a heatwave? (they = Australia)
    •  
      CommentAuthorpcstru
    • CommentTimeSep 24th 2013
     
    Posted By: AngusHa, a really nice idea, floating the resin!
    More Canadian ingenuity. Gotta be smart to survive the winter in Saskatoon. Last time I was there it was -45 C.

    Yes - nice ideas. I'm surprised it doesn't run foul of someone's patents.
    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013
     
    Is maple syrup a resin?
    •  
      CommentAuthorAngus
    • CommentTimeSep 24th 2013
     
    That information is classified.
    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013
     
    Aha, I have just came up with a way to smuggle MS out of Canada, fabricated chess pieces.
  10.  
    Posted By: AngusOK let's go through this for Trim.

    45C = 273+45 K
    -45C=273-45 K

    Average is (273-45+273+45)/2=273 K

    =0 C

    Which I consider to be lukewarm but many would consider cold.


    I love the way you did that. That is, correctly.

    There are four types of data scales. Nominal, ordinal, interval and ratio.
    The Celsius scale is an "interval" level scale. The "zero" level is arbitrary and does not indicate the absence of the quantity being scaled. Hence it is not correct to speak of such things as "10 degrees C being half as warm as 20 degrees C" and you can't do legitimate averaging operations using the interval level scaling.
    The Kelvin scale is a true "ratio" level scale, the richest kind. Zero degrees K indicates the absence of the quantity scaled, and 250 degrees K is indeed half as "hot" as 500 K.
    So by converting to degrees K before finding the average (a ratio-level data operation) you performed the operation correctly.
    Of course you get the same answer if you just average the C temps, even if it's wrong.
    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013
     
    I also did it at first using Kelvin but thought the result was to cold and inhuman, so I used the frog's scale.

    And got 22.5C (72.5 degrees Fahrenheit ) much more like it.

    So the union can prosper.
    • CommentAuthorLakes
    • CommentTimeSep 24th 2013
     
    Posted By: TrimAha, I have just came up with a way to smuggle MS out of Canada, fabricated chess pieces.
    Now there's an idea, candy shaped chess pieces!

    Here you go http://www.amazon.com/Unknown-Chess-Pieces-Candy-Mold/dp/B0008D6R6K :)
    •  
      CommentAuthorTrim
    • CommentTimeSep 24th 2013
     
    How dare they copy my idea, I am now going to have a sulk.
  14.  
    The Peachy rocks
    •  
      CommentAuthorTrim
    • CommentTimeSep 30th 2013
     
    Po

    3D printers taking off.

    NASA preparing to launch 3-D printer into space (Update).


    http://phys.org/news/2013-09-nasa-d-printer-space.html
    • CommentAuthorLakes
    • CommentTimeSep 30th 2013 edited
     
    "Last month, the space agency awarded Bothell, Wash.-based Tethers Unlimited $500,000 toward a project to use 3-D printing and robots to build massive antennas and solar power generators in space by 2020. It replaces the expensive and cumbersome process of building foldable parts on Earth and assembling them in orbit."

    Computer - print me a solar panel. :)
    •  
      CommentAuthorTrim
    • CommentTimeSep 30th 2013
     
    NW

    Entering a new dimension: 4D printing.

    http://www.nanowerk.com/news2/newsid=32538.php
    • CommentAuthortinker
    • CommentTimeSep 30th 2013
     
    Many things change their structure over time. Gernerally it would be more useful if they remained the same.
  19.  
    Yes - you could say that you designed and built the most intricate structure known to mankind, but it's gone now.
    • CommentAuthorLakes
    • CommentTimeOct 1st 2013
     
    So, that`s how Mary makes her invisible unicorns!

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