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It's engineers' fun! Nothing is so fun.
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Anybody go Pinewood Derby Cars tomorrow?
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#2
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ytlee
发表于 01-31-2010 - 01:30
精准.石油.论坛 forum.petro-china.com
引用框（Obamaoil ＠ 2010-01-30）
It's engineers' fun! Nothing is so fun.
Are you in as parent or as a contestant?
http://www.pinewoodp...ar-pictures.htm
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#3
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Obamaoil
发表于 01-31-2010 - 03:26
精准.石油.论坛 forum.petro-china.com
as parent. Kids may always help polish and decor.
Our den is so cool, after around 20 meters travel, 12 cars have a difference less than 1 inch. The peak speed is over 220mph! Those dads are really good at it!
精准.石油.论坛 forum.petro-china.comOur den is so cool, after around 20 meters travel, 12 cars have a difference less than 1 inch. The peak speed is over 220mph! Those dads are really good at it!
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