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Dr.& ChartYourWorld.org) This week’s guest Paul MacNeal,a mechanical systems engineer at JPL, created the Annual Invention Challenge twenty-one years ago after helping his son with an extra credit assignment. Since then, and teams of tall … Continue reading "Weekly Space Hangout: Jan 16,2019: Paul MacNeal of JPL’s Annual Invention Challenge"The post Weekly Space Hangout: Jan 16, 2019: Paul MacNeal of JPL’s Annual Invention Challenge appeared first on Universe nowadays.
Source: universetoday.com