Coriolis effect

Reader's Digest １1月号の記事 "36 False Facts" の内の一つのfactです。
Flush Rotation
A flushed toilet doesn't drain the other way in the opposite hemisphere. The Coriolis effect doesn't apply to water in toilets.
"Coriolis" も、それに対応する日本語も知りませんが、それが何を示しているかは "drain the other way in the opposite hemisphere" で直ぐに分かりました。台風などの回転する向きが北半球と南半球とでは地球の自転の影響で反対になる話ですね。辞書で "Coriolis" を調べます。
・Oxford English Dictionary: Physics: An effect whereby a mass moving in a rotating system experiences a force (the Coriolis force) acting perpendicular to the direction of motion and to the axis of rotation. On the earth, the effect tends to deflect moving objects to the right in the northern hemisphere and to the left in the southern and is important in the formation of cyclonic weather systems.: You might be wondering: If the Coriolis force turns winds to the right in the Northern Hemisphere, why do winds go counterclockwise around large systems, such as hurricanes, north of the equator?
百科事典の説明も見てみましょう。　次の文はWikipediaの1st Para.からの引用です。
In physics, the Coriolis effect is the apparent deflection of moving objects when the motion is described relative to a rotating reference frame. In a reference frame with clockwise rotation, the deflection is to the left of the motion of the object; in one with counter-clockwise rotation, the deflection is to the right. Although recognized previously by others, the mathematical expression for the Coriolis force appeared in an 1835 paper by French scientist Gaspard-Gustave Coriolis, in connection with the theory of water wheels. Early in the 20th century, the term Coriolis force began to be used in connection with meteorology.
トイレの水の回転方向が地球の自転の影響、"Coriolis effect"、で北半球と南半球では反対とは少なくとも日本人は誰も、考えていないと思います。
"Coriolis effect" を確認するために南半球に行きたいところですが、申し込んでいた２月のニュージーランドツアーが催行中止になり、いつか別の機会に行くことになりました。代わりと言っては何ですが、明日から九州の温泉旅行に行くので、ブログはしばらくお休みします。では皆さま良い正月をお迎え下さい。