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Re: [midatlanticretro] 2/26 Workshop Postponed

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  • Sills Raymond
    And, I found this site, which purports to show the physics of a Pinewood Car, and where to locate the center of mass:
    Message 1 of 3 , Jan 14, 2011
      And, I found this site, which purports to show the physics of a
      Pinewood Car, and where to locate the center of mass:

      <http://www-cs-students.stanford.edu/~mdevine/pinewood/
      pinewood_derby.html>

      73 de Ray

      On Jan 14, 2011, at 9:16 PM, Jim Scheef wrote:

      >
      >
      > Bill,
      >
      > Some pinewood derby hints used in my son's winning car:
      > use steelwool to burnish the axles before mounting the wheels
      > make sure the wheels are absolutely straight (bend the axles as
      > needed)
      > powdered graphite helps (oil is often prohibited)
      > drill out the body and melt in enough solder to get car weight up
      > to the absolute limit
      > We (this was Indian Guides) won by an order of magnitude!
      >
      > Jim
      >
      > On 1/14/2011 8:44 AM, B Degnan wrote:
      >>
      >> Sorry to have to report this, but I have to postpone the 2/26
      >> Workshop. I just learned this morning that my son's pinewood derby
      >> for cub scouts is that day, and it probably would be bad parenting to
      >> miss that one...
      >>
      >> I am sure you all understand.
      >>
      >> I think what I will do instead is leave the doors open
      >> (metaphorically) to anyone who in Jan - March wants to get together
      >> to work on projects, I will be available most other weekends, and
      >> even weekdays with advanced notice.
      >>
      >> Just so you know, my next big project is to clean and assemble a PDP
      >> 11/34 rack and that's what I will be doing when I am not working on
      >> VCF-specific stuff. The 11/34 is similar to the 11/40 that came
      >> before it. My 11/40 has a bad H744 +5V power regulator that is
      >> keeping the front panel from getting its juice, so I will also
      >> replace that as part of this project. This way I will have a working
      >> system to compare and contrast, test cards, etc.
      >>
      >> In addition to the 11/34, there is a lot of "new" stuff that has been
      >> moved to Wilm. in the past 6 months that may be of interest,
      >> especially Tandy, Apple ///, Amiga, printers, OS/2, and C
      >> stuff. Lots of docs and books.
      >>
      >> Bill
      >>
      >>
      >
      >
      >
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