额外试验：让你的朋友站在阴影里然后打开闪光灯试试！
Bonus experiment: Stand your friend in the shade and pop up your flash!
如果试验成功，该小组计划明年夏天安装这些流竹灯。
If the tests are deemed successful, the team plans to install the lamps next summer.
人们经常会举爱迪生发明灯泡的例子，在他试验了上千种材料后终于找到了一种合适的材料发明了白炽灯。
An example he frequently USES is when Thomas Edison tested thousands of materials before he discovered the right one for his incandescent lamp.
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