翻訳と辞書 Words near each other ・ Eulima jaculum ・ Eulima jucunda ・ Eulima kawamurai ・ Eulima koeneni ・ Eulima labiosa ・ Eulima lacca ・ Eulima lactea ・ Eulima langleyi ・ Eulima lapazana ・ Eulima latipes ・ Eulima leachi ・ Eulima legrandi ・ Eulima leptostoma ・ Eulima leptozona ・ Eulima lodderae ・ Euler's Disk ・ Euler's equations (rigid body dynamics) ・ Euler's factorization method ・ Euler's flycatcher ・ Euler's formula ・ Euler's four-square identity ・ Euler's identity ・ Euler's laws of motion ・ Euler's pump and turbine equation ・ Euler's rotation theorem ・ Euler's sum of powers conjecture ・ Euler's theorem ・ Euler's theorem (differential geometry) ・ Euler's theorem in geometry ・ Euler's three-body problem Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Euler's Disk ： ウィキペディア英語版 Euler's Disk Euler's Disk is a scientific educational toy, used to illustrate and study the dynamic system of a spinning disk on a flat surface (such as a spinning coin), and has been the subject of a number of scientific papers.〔(【引用サイトリンク】url=http://eulersdisk.com/pubs.html )〕 The apparatus is known for a paradoxical dramatic speed-up in spin rate as the disk loses energy and approaches a stopped condition. This phenomenon is named for Leonhard Euler, who studied it in the 18th century. ==Components and use== The commercially available toy consists of a heavy, thick chrome-plated steel disk and a rigid, slightly concave, mirrored base. Included holographic magnetic stickers can be attached to the disk, to enhance the visual effect of "sprolling" or "spolling" (spinning/rolling), but these attachments are strictly decorative. The disk, when spun on a flat surface, exhibits a spinning/rolling motion, slowly progressing through different rates and types of motion before coming to rest—most notably, the precession rate of the disk's axis of symmetry accelerates as the disk spins down. The rigid mirror is used to provide a suitable low-friction surface, with a slight concavity which keeps the spinning disk from "wandering" off a support surface. An ordinary coin spun on a table, as with any disk spun on a relatively flat surface, exhibits essentially the same type of motion, but is normally more limited in the length of time before stopping. The commercially available Euler’s Disk toy provides a more effective demonstration of the phenomenon than more commonly found items, having an optimized aspect ratio and a precision polished, slightly rounded edge to maximize the spinning/rolling time. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Euler's Disk」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.