Quote of the Day
Too often man handles life as he does the bad weather. He whiles away the time as he waits for it to stop.
I was watching a interview with Valerie Neal, Curator and Chair National Air and Space Museum, on CSPAN. The interview was focused on the history of rocket development in both the US and Soviet Union. Valerie was asked what was her favorite artifact at the National Air and Space Museum. She responded that she liked artifacts that were the personal items of the pioneers. In the case of space travel, she said that the slide rules of rocket pioneers Wernher von Braun and Sergei Korolev were her favorite artifacts. Both men used the same type of slide rule. As I looked closely at the slide rules (Figures 2 and 3), I realized they were the same brand – Nestler – as used by some engineers I knew as a boy. My slide rule was a Pickett, similar to that shown in Figure 1.
|Figure 2: Slide Rule of von Braun.||Figure 3: Slide Rule of Korolev.|
Unfortunately, the photos are not high enough resolution to read the specific model numbers of the slide rules in Figures 2 and 3. I have read in this document that von Braun preferred the 9 scale, Nestler 23R slide rule – which was also used by Einstein. Figure 4 shows a more detailed photo of this slide rule.
For those who want more background on slide rules, here is an excellent document.