Originally posted by iknow at 2006-10-17 10:39 PM:2 _# \" b7 V8 M- ?' [+ ]3 X, @
神奇的圖片
- C4 e0 @7 L1 b% n+ z. c一定要聚精會神地盯著中...

Originally posted by SCM at 2006-10-17 10:42 PM:+ t' W; T5 r; E6 i

5 V. N8 M+ U0 A) v死link

Originally posted by d228216 at 2006-10-17 10:47 PM:) g1 y# V/ a6 E
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即係我地全部唔方幸福.................又中喎

Originally posted by guswan at 2006-10-18 12:09 AM:$ _/ l% w% I+ M" J) |; h" c& N
人的視覺有screensaver,. d9 o/ J+ t6 c5 X
對視網膜接收的訊息有補色功能,
  J# I. T. Q6 b& J0 n0 C0 J8 d長期看著的顏色,會用其對比色填補,保護眼睛.
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可試一試看著一個顏色鮮艷的影像,
3 c1 U0 o( ^5 V) u跟著立即轉看一個全白色畫面,
' L- X; ^: k9 ?$ k" ~7 U  X7 U先前的影像就會變成底片效果出現在全白色畫面上.
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; W/ C* W4 c$ H8 ^* D所以看一會兒後紅點變白時就成為綠點,0 k2 C$ ]( B  c+ q1 {8 N
就像一個綠點在轉.
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Originally posted by SCM at 2006-10-18 21:53:0 H$ A9 u. |; g3 T3 v
O 原來係呢個 睇過 ' x1 L8 Z$ [7 o$ t2 p) w! t  s0 u$ W
不過有冇根據ga

Originally posted by SCM at  09:53 PM:
3 C4 _( B/ R; A* L; v4 }" oO 原來係呢個 睇過 8 S7 }4 b. [9 A) O
不過有冇根據ga

Originally posted by playbr2 at 2006-10-18 03:13 AM:/ g/ H; j3 ~% Z3 V
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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