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File:Foils.png

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Foils.png (512 × 284 pixels, file size: 3 KB, MIME type: image/png)

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Description
中文:​Foils PNG (Original creation)

左:半浸水翼具自我穏定能力。當水翼向下沉,浸在水中的面積增加,升力亦增加,把水翼向上抬。反之亦然。故此水翼能自我維持在水面的位置。

右:全浸水翼,升力跟水翼在水中的深淺位置無直接關係,不具自我穏定能力。

On the left: Surface-piercing hydrofoil. On the right: fully submerged hydrofoil.

Surface-piercing hydrofoil is self-stabilizing: when the hydrofoil gets deeper into the water, more hydrofoil area is under water, lift is increased and the hydrofoil moves upward.

Fully submerged hydrofoil is not self-stabilized. It has no idea where it is with respect to the water surface.
Date 19 February 2005 (original upload date)
Source Transferred from zh.wikipedia; transferred to Commons by User:Shizhao using CommonsHelper.
Author Original uploader was Peterpan at zh.wikipedia
Permission
(Reusing this file)
Released into the public domain (by the author).

Licensing

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This work has been released into the public domain by its author, Peterpan, at the English Wikipedia project. This applies worldwide.

In case this is not legally possible:
Peterpan grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

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The original description page was here. All following user names refer to zh.wikipedia.
  • 2005-02-19 18:10 Peterpan 512×284× (3317 bytes) Foils PNG (Original creation)

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Date/TimeThumbnailDimensionsUserComment
current15:27, 10 June 2010Thumbnail for version as of 15:27, 10 June 2010512 × 284 (3 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{BotMoveToCommons|zh.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{zh|Foils PNG (Original creation) 左:半浸水翼具自我穏定能力。當水翼向下沉,浸在�

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