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In 80, Flavius Josephus recorded the first known incident of mooning. Josephus recorded that in 66 AD, at around the beginning of the First Roman–Jewish War, a Roman soldier mooned Jewish pilgrims on their way to the Jewish Temple in Jerusalem, causing a riot, an over-response by the Roman military, and the deaths of thousands of pilgrims.
The dimensions differ among adults by only one or two millimeters. The vertical measure, generally less than the horizontal distance, is about 24 mm among adults, at birth about 16–17 millimeters (about 0.65 inch). The eyeball grows rapidly, increasing to 22.5–23 mm (approx. 0.89 in) by three years of age. By age 13, the eye attains its full size.The typical adult eye has an anterior to posterior diameter of 24 millimeters, a volume of six cubic centimeters (0.4 cu. in.),and a mass of 7.5 grams (weight of 0.25 oz.).
Anatomy
It measures about 8 to 10 cm in length, from its anterior to its posterior extremity, and is about 2.5 cm opposite the anus, when defecation occurs the sphincter muscle retracts.
It consists of two strata, superficial and deep.
The superficial, constituting the main portion of the muscle, arises from a narrow tendinous band, the anococcygeal raphe, which stretches from the tip of the coccyx to the posterior margin of the anus; it forms two flattened planes of muscular tissue, which encircle the anus and meet in front to be inserted into the central tendinous point of the perineum, joining with the Transversus perinæi superficialis, the Levator ani, and the Bulbocavernosus.
The deeper portion forms a complete sphincter to the anal canal. Its fibers surround the canal, closely applied to the Sphincter ani internus muscle, and in front blend with the other muscles at the central point of the perineum.
In a considerable proportion of cases the fibers decussate in front of the anus, and are continuous with the Transversi perinæi superficiales.
Posteriorly, they are not attached to the coccyx, but are continuous with those of the opposite side behind the anal canal.
The upper edge of the muscle is ill-defined, since fibers are given off from it to join the Levator ani.
Moon/Earth Comparison
Bulk parameters
Moon Earth Ratio (Moon/Earth)
Mass (1024 kg) 0.07342 5.9726 0.0123
Volume (1010 km3) 2.1958 108.321 0.0203
Equatorial radius (km) 1738.1 6378.1 0.2725
Polar radius (km) 1736.0 6356.8 0.2731
Volumetric mean radius (km) 1737.1 6371.0 0.2727
originally posted by: rival
I just measured my sphincter and the math is off..
It was quite a hassle. I couldn't do it by myself. My wife
didn't want to help. The lady at the Dollar Store where I
bought the tape measure and the mirror got mad at me
for even asking--like how can just asking a question be
a bad thing?
Anyway, it took awhile, but my sphincter is .32 of an inch
in the relaxed state, and 1.1136 in its dilated state.
Which means, among other things--like your math is
off by a few percent--that I could successfully pass
an eyeball, if I ever needed/decided to eat an
entire human.
You learn something everyday...