File:Knijpkat 996637.JPG
此为最大尺寸。
Knijpkat_996637.JPG （500 × 480像素，文件大小：71 KB，MIME类型：image/jpeg）
摘要
| 描述 |
English: A w:en:dyno torch, a hand powered electric torch, disassembled to show mechanism. Squeezing the handle (left) spins the flywheel through the plastic rack and pinion gear. The flywheel has a ring-shaped magnet on it which, combined with the coil of wire (right), makes a brushless AC generator. The magnetic field of the spinning magnet induces electric current in the coil of wire, which powers the light bulb. The torch only generates light when it is pumped, so it doesn't need an ON/OFF switch. Modified by Midnightcomm to correct white balance and be cropped. |
||||||||
| 日期 | |||||||||
| 来源 | Photo taken by author with w:Nikon Coolpix 950 camera | ||||||||
| 作者 | Bios | ||||||||
| 授权 (二次使用本文件) |
|
文件历史
点击某个日期/时间查看对应时刻的文件。
| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2006年5月1日 (一) 01:43 | | 500 × 480（71 KB） | Midnightcomm | {{Information| |Description=Corrected white balance (the previous version had a blue tint), made background solid white, cropped version of previous file version. |Source=Wikimedia Commons |Date=[[April 30], 2006 }} Modified by uploader. |
| 2005年9月14日 (三) 15:14 |  | 640 × 480（62 KB） | Bios~commonswiki | interior of a w:en:dyno torch (by squeezing it, a magnet starts spinning and thus generates electricity in a wire coil; pretty much like a bike dynamo) - taken with w:Nikon Coolpix 950 - {{GFDL}} |
文件用途
全域文件用途
以下其他wiki使用此文件：
- da.wikipedia.org上的用途
- de.wikipedia.org上的用途
- en.wikipedia.org上的用途
- en.wikiversity.org上的用途
- nl.wikipedia.org上的用途
- nl.wiktionary.org上的用途
- no.wikipedia.org上的用途
- pt.wikipedia.org上的用途
- zh-yue.wikipedia.org上的用途
