금탱이
Basic Knowledge
Why you see lightning before you hear thunder ⚡️ When lightning strikes, light and sound are produced almost simultaneously, but because light travels much faster than sound, we see the lightning first. Light travels about 300,000 kilometers per second, while sound only travels about 340 meters per second in the air. Therefore, the longer the time between seeing lightning and hearing thunder, the farther away the lightning strike is. For example, if you hear thunder about 3 seconds after seeing lightning, the strike is approximately 1 kilometer away. (Speed of light > Speed of sound)
2026.09.28 PM 11:48 · View Count 0
Lv.1
몬몬
So you measure distance by the difference in the speed of light and sound. That's useful info that can be applied directly to real life, hmm! You worked hard organizing this.