The engineers worked out the math and designed a system of nylon ropes and pulleys. Each pulley quadruples the amount of weight a single kite can pull.

• 工程师们从数学上进行了论证,并设计出一个由尼龙绳子和滑轮构成的工作系统。每个滑轮的重量是每只风筝载重量的4倍。