3 ms·
For a one foot diameter globe, the diameter difference would be about 1mm. You couldn't tell without calipers or such. A typical commercial globe will be more o
by delichon 1y ago
For a one foot diameter globe, the diameter difference would be about 1mm. You couldn't tell without calipers or such. A typical commercial globe will be more oblate than that unintentionally.
- perrygeo 1y agoIt's easy to get lost in the geodesy details, which really matter at a local scale! But on a global scale the earth is effectively round. Many of us have seen images like this: https://www.asu.cas.cz/~bezdek/vyzkum/rotating_3d_globe/figures/rotating_3d_globe_preview_Geoid_height_EGM2008_nmax1000_BlueWhiteOrangeRed_px3000.png https://www.asu.cas.cz/~bezdek/vyzkum/rotating_3d_globe/figu... which are effective at showing the shape and gravitational anomalies but is wildly exaggerated on the height axis. Visualizing to scale would look indistinguishable from sphere.