pendulum

• 揺れ動くハンマー。

ラテン語のpendere（吊るす、重さを量る、支払う）から、PIE *spend、*spen（引っ張る、伸ばす）に由来する。

pendulum

pendulum: [17] A pendulum is etymologically simply something that ‘hangs’. It is a noun use of the neuter form of the Latin adjective pendulus ‘hanging’ (source of English pendulous [18]). This was a derivative of the verb pendēre ‘hang’, which has contributed a wide range of words to English, among them penchant [17], pendant [14], pendent [15], pending [17], and penthouse, and derived forms such as append [15], appendix [16], depend, impend [16], perpendicular [14], and suspend.
=> append, appendix, depend, impend, penchant, pendant, pendent, penthouse, perpendicular, suspend

pendulum (n.)

1660, from Modern Latin pendulum (1643), noun use of neuter of Latin adjective pendulus "hanging down," from pendere "to hang" (see pendant). The Modern Latin word is perhaps a Latinization of Italian pendolo.

1. In education，the pendulum has swung back to traditional teaching methods.

教育界は伝統的な教育法を復活させた。

2.The ball which hung the roof is compound pendulum .

壁に掛けられた時計が上下に揺れ動く.

3.Finally，GMTI performance of two typical systems，Cartwheel and Pendulum ，is analyzed through computer simulation.

最後に、CartWheelと Pendulum の2つの典型的なシステム構造に対してGMTI性能シミュレーション分析を行った。

4.The pendulum has swing back and the American car companies have made dramatic advances in safety.

30年河東、30年河西、米国の自動車会社は安全面で大きな進歩を遂げた。

5.The familiar pendulum swing was to happen once more，and then stop.

よくある振り子の往復現象は、再び発生し、それから動かなくなる。