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How Is Lightning Made?

Wednesday, January 5, 2011

I live in Jogjakarta, Indonesia and almost everyday we see hard rain and lightning, here I will tell you about lightning.. 
Not this Lightning :)

But This is real LIGHTNING

How is lightning made? People used to make up stories to answer that question. Today, science tells us how.

You have heard of Ben Franklin. Did you know he flew a kite during a thunderstorm? He wanted to prove that lightning is a form of electricity. We know now that flying a kite in a storm is not safe. But, Ben was right. Lightning is a form of electricity. How does this "electricity" form?

What do You Need to Make Lightning?
You need cold air and warm air. When they meet, the warm air goes up. It makes thunderstorm clouds! The cold air has ice crystals. The warm air has water droplets. During the storm, the droplets and crystals bump together and move apart in the air. This rubbing makes static electrical charges in the clouds.

Just like a battery, these clouds have a "plus" end and a "minus" end. The plus, or positive, charges in the cloud are at the top. The minus, or negative, charges are at the bottom. When the charge at the bottom gets strong enough, the cloud lets out energy.

The energy goes through the air. It goes to a place that has the opposite charge. This lightning bolt of energy that is let out is called a leader stroke. It can go from the cloud to the ground. Or, a leader stroke can go from the cloud to another cloud. No one is sure why lightning bolts follow a zigzag path as they move. The main bolt or stroke will go back up to the cloud. It will make a flash of lightning. It will also heat the air. The air will spread quickly. It will make the sound we hear as thunder.

Be Safe in a Storm
Lightning is dangerous. Here are some safety rules.

  • Stay away from open spaces. But, do not stand under a tree. The best place is inside a building.
  • If you are swimming, get out of the water. Get out as soon as you see a storm coming. The storm may seem far away, but lightning can travel over 20 miles!
  • During a thunderstorm, shut off or unplug all electrical items. Do not use the phone.
  • Never walk in a thunderstorm carrying a metal pole. Don't even carry an umbrella!
  • How will you know if a lightning strike is near you? You will feel the hair on your head or body start to stand up. If this happens, go to a safe place. Go quickly! If there is no safe place near, get as close to the ground as you can. 
Scientists have learned some facts about lightning from pictures. Some lightning flashes are made up of as many as 25 or more lightning bolts (strokes). They move so fast that your eyes only see one flash!

Lightning is fun to watch. But, make sure you do so safely.  

Source :
Lightnign NASA Document
Lightning Wikipedia


Steve Bossenberger said...

Nice post and great blog. Love the lightning GIF! Thanks for commenting on my blog!

Take care

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