I couldn’t help but notice the large globe in the Smithsonian Air and Space Museum. This artifact is part of the “America by Air” exhibition. Juan Trippe, president of Pan Am Airlines, was accustomed to using this globe to calculate … Continue reading
The first tool is a highly accurate square. My square has been calibrated and is accurate to -.0007 inside and -.0002 outside. That’s about as accurate as you can get. The second tools is a micrometer. My micrometer will measure … Continue reading
I believe I may has settled on a time frame. The period around 1800 seems promising. This would be after the revolution, yet still historic-enough to present this area as a rugged wilderness. Anything later would have to be the … Continue reading
Step 1 of the physical globe construction involves shaping the perfect sphere. How to do this? The globe must be perfect, down to the millimeter, since all the gores must fit together perfectly upon the surface of the globe. I … Continue reading