Looking at three optical illusions

被引：0

作者：

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来源：

少年科学 | 2008年 / S2期

关键词：

Looking at three optical illusions; length;

D O I：

暂无

中图分类号：

G634.98 [];

学科分类号：

04 ; 0401 ;

摘要：

For this experiment, you will need:● a rulerWhich is bigger?▲Look at the two small squares. Which is bigger – the yellow one or the blue one?Which is longer?▲This lorry is losing its load. Two beams(横木) have fallen onto the road. Which do you think is longer, No.1 or No.2?▲

引用

页码：29 / 30

页数：2