The Pringles saddle shape chip surface was modeled after, and can be described mathematically by, a hyperbolic paraboloid, which is a form of quadric. This shape is distinctive in that it is curved at all points along its surface; there are no flat planes or lines. This design characteristic is beneficial as it helps keep the chips from breaking during distribution by eliminating lines of stress along which a small crack may easily propagate.
About 34% of the world by country population drives on the left, and 66% keeps right. By roadway miles, about 72% drive on the right.
It has been estimated that, on average, approximately 20 life-years are gained from the health benefits of road bicycling for every life-year lost through injury.
Est omnino difficile iudicare inclusionis meritum cuiusdam rei in encyclopædia cum ratio sciendi quid populi referat incerta sit, sed nihilominus aliquid encyclopædiam dedecet
It is generally difficult to judge the worthiness of a particular topic for inclusion in an encyclopedia considering that there is no certain way to know what interests people, but some topics nevertheless are not fit for an encyclopedia.
This motto reflects the desire of these Wikipedians to be reluctant, but not entirely unwilling, to remove articles from Wikipedia.
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