[Elecraft] A little theory.

[John Marvin]

Sorry, it is you are confusing the two. It was Feynman on both counts. 
Sagan would have been 8 years old when the Manhattan Project was 
started. Feynman was also on the Rogers Commission that was tasked with 
investigating the Challenger disaster (Carl Sagan was not involved).

73,

John
AC0ZG

On 4/18/2017 1:50 AM, David Woolley wrote:
> I believe people are confusing Feynman and Sagan.  I think it was Carl 
> Sagan who demonstrated the sloppy practices with combination locks and 
> did the Challenger enquiry.
>
> I did read some of Feynman's lectures, in high school.
>