25 inches in circumference would be the largest normal (not  hydrocephalic) head.    The world record holder is Rick Walters.
Trending Now. Answers. Best Answer: 365 days, 5 hours, 49 minutes and 1.20 seconds (or 365.242375 days). The distance is not so easy; the Earth doesn't travel in a circle through space. With relation to the Sun, it does, but since the Sun is moving, the Earth moves in a helixal orbit.
day -- 15.56 So it took 92.55 minutes to complete one orbit of the Earth. On average, it travels at an average speed of 27,724 kilometres (17,227 mi) per hour, and completes 15.7 orbits per day. Source(s): http://www.nasa.gov/directorates/heo/rep...