The propagation speed of light in the air is very fast, and the propagation speed of sound in the air is 340 m/s. When it rains heavily in summer, Xiao Ming sees lightning in the distance, and hears thunder 4 seconds later, how far is the place of lightning from Xiao Ming?
光在空气中的传播速度是非常快的，声音在空气中的传播速度是340米/秒．夏天下暴雨时，小明看见远处的闪电，4秒后听到了雷声，闪电的地方离小明有多远？
<gadget id="calculator">340 * 4</gadget>
<output>1_360</output>

<result>1_360</result>