2011年2月9日 星期三

Parallax, in half

Hazard: The swing seats on the playsets can crack and break in half, causing the user to fall to the ground.

Incidents/Injuries: Escalade Sports has received 24 reports of the seats breaking, no injuries have been reported.

http://en.wikipedia.org/wiki/Parallax

Parallax

(păr'ə-lăks'pronunciation
n.
An apparent change in the direction of an object, caused by a change in observational position that provides a new line of sight.

[French parallaxe, from Greek parallaxis, from parallassein, to change : para-, among; see para-1 + allassein, to exchange (from allos, other).]
parallactic par'al·lac'tic (-lăk'tĭkadj.
[名][U][C]
1 視差:観察位置による対象物の変位.
2 《天文》視差.
3 《写真》(ファインダーとレンズの)視差.
[ギリシャ語parállaxis (para-そばに+allássein変動する+-sis(名詞語尾)=そばに変動すること)]

in half

In two equal or roughly equal parts. For example, Let's cut this sheet in half. [Late 1500s]

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