Page 1
A flat sheet of paper seems weak, so it surprises children when a paper bridge can hold weight.
一张平平的纸看起来很软，所以纸桥竟然能承重时，常常会让孩子觉得惊讶。正文预览
Page 2
The secret is not that the paper became magic. The secret is how the paper is shaped.
秘密并不在于纸突然变神奇了，而在于这张纸被变成了什么形状。
Page 3
A flat piece of paper bends easily because force is not spread very well through it.
平整的纸很容易弯，是因为重量压上去之后，力量不太容易被很好地分散。
Page 4
When paper is folded, curved, or made into tubes or accordion shapes, it becomes better at carrying force.
可当纸被折起来、卷起来，或者做成波浪形时，它就更擅长把力量撑住和分开。
Page 5
Under the same weight, folded paper, curved paper, and flat paper do not behave the same, because shape changes how the force spreads through the bridge.
在同样的重量下，折起来的纸、弯起来的纸和平平的纸，表现会完全不同，因为形状会改变力量在纸桥里分散的方式。继续看同类型内容
