Originally posted by iknow at 2006-10-17 10:39 PM:" d7 z# z& r7 x% V
神奇的圖片
' l; h" w/ ?; Y& [& l一定要聚精會神地盯著中...

Originally posted by SCM at 2006-10-17 10:42 PM:
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死link

Originally posted by d228216 at 2006-10-17 10:47 PM:
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9 j$ Q; A7 W" Z- f即係我地全部唔方幸福.................又中喎

Originally posted by guswan at 2006-10-18 12:09 AM:2 o* Q6 V9 K3 G& }8 _; E
人的視覺有screensaver,$ i# z0 b; Y, a" H* Q& ~& \
對視網膜接收的訊息有補色功能,
, ~3 h! M/ |# c8 y6 m長期看著的顏色,會用其對比色填補,保護眼睛.. X2 D3 A% S, z2 f/ [

2 v0 s. @5 q4 G) j- Y! P$ ]可試一試看著一個顏色鮮艷的影像,
; E0 E* G0 N8 D" n5 w9 ?6 d跟著立即轉看一個全白色畫面,
; K* q3 N, E4 L; w先前的影像就會變成底片效果出現在全白色畫面上.( |9 }) X+ s$ X- G" V

+ c1 S$ E, V/ Z) ]) D0 b所以看一會兒後紅點變白時就成為綠點,
, m# M, m( Y. F! }' X就像一個綠點在轉.
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Originally posted by SCM at 2006-10-18 21:53:
0 x" _5 v( G4 h1 k2 XO 原來係呢個 睇過
5 P8 M& _) K2 R# C不過有冇根據ga

Originally posted by SCM at  09:53 PM:/ O( Z, g' J, x& z6 Y
O 原來係呢個 睇過 7 ?1 e) D# g& E7 U4 x; Q
不過有冇根據ga

Originally posted by playbr2 at 2006-10-18 03:13 AM:
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) h) d. C/ S# {* g: x$ q2 y中二的科學堂已經有教為甚麼大多數的人總是迷信,而不好好學習科學