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7 Facts About Lightning
« on: July 02, 2007, 01:19:27 AM »
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7 Facts About Lightning - Scientific oddities about this natural phenomenon
By: Lucian Dorneanu, Science Editor - Softpedia

Beautiful lightning

First, let's see what you did know about lightning. You probably know that it's an atmospheric discharge of electricity, occurring during rain storms. You're right. Now let's see if you also knew this:

1 - Lightning can form without rain storms.

Yes, it's true. Lightning can also occur during volcanic eruptions or dust storms, and doesn't really require massive cloud formations. Lightning struck the Apollo 12 soon after takeoff, and has struck soon after thermonuclear explosions. Even extremely large volcanic eruptions can trigger lightning, due to the gases and solid material they eject high into the atmosphere.

2 - Lightning can form on other planets

While it's true that it cannot form in the vacuum of space, requiring the electrical breakdown of gas, lightning has been spotted in the atmospheres of planets like Venus and Jupiter. On the gas giant, it can be 100 times more powerful, though 15 times less frequent, than on Earth.

3 - Lightning can and does strike the same place twice

In fact, lightning favors certain
spots, particularly high locations, like trees and buildings. The Empire State Building is struck by lightning on average 23 times each year, and was once struck 8 times in 24 minutes. Actually, most lightning strikes are made up of multiple individual strokes, meaning that what we see as a pulsating lightning actually consists of three or four different strokes following the same pathway.

4 - Lightning can strike from ground to the clouds

Also true. Called positive lightning, this type makes up less than 5% of all lightning. It forms when cloud tops become positively charged and the ground is negatively charged. When the tension is high enough, electrons from the ground will "climb" to the top of the cloud, forming an inverted lightning. They usually carry about ten times as much current as a bolt of negative lightning, the "normal" one.

5 - Lightning can appear as a sphere

There are many historical accounts of spherical lightnings, or "ball lightnings". A ball lightning has the strange tendency to float (or hover) in the air and take on a ball-like appearance. Many witnesses reported them as being red to yellow in color, sometimes transparent, and some containing radial filaments or sparks. Other colors, such as blue or white occur as well. Recent laboratory experiments are just beginning to shed light on the nature of ball lightning, a phenomenon that has baffled scientists for centuries.

6 - What is the thunder?

The thunder is the noise heard after the lightning occurred. It's actually an explosion of the air molecules in the discharge channel, a rapid expansion caused by the electrical discharge. The rolling and gradually dissipating rumble of thunder is caused by the time delay of sound coming from different portions of a long stroke.

7 - Can a lightning strike out of the blue?

Yes, a lightning can really strike without a thunderstorm being present in the area. This is not the type of lightning previously mentioned, it's actually a weather phenomenon that scientists dubbed as ''bolt from the blue'' or ''dry lightning'' because it falls from clear, blue skies.

David Canales, 41, of West Miami-Dade, US, was killed last week after a lightning came apparently out of nowhere, struck a tree nearby and then the unfortunate man. This unusual lightning packs a bigger, deadlier punch and forms differently, being able to carry as much as 10 times the current, is hotter and lasts longer.

So, with lightning striking the Earth around 100 times every second, on average, this is one of nature's deadliest forces, that may unintentionally affect our life in dramatic ways, and can even bring it to an abrupt end.

Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=2179.0
"All that is needed for evil to succeed is, that decent human beings doing nothing". (Edmund Burke)

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Re: 7 Facts About Lightning
« Reply #1 on: July 02, 2007, 02:44:14 AM »
I'm familiar with number 6, every after lightning theres always a thunder, thats why kung mangilat na gani manampong nalang ko daan sa dalunggan  ;D
"There's no perfect life, but we can let God fill it with perfect moments"

slackware

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« Reply #2 on: July 02, 2007, 02:55:28 AM »
usahay kay halos magduingan ang kilat ug dugdug!

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Re: 7 Facts About Lightning
« Reply #3 on: July 02, 2007, 04:02:29 AM »
my mom is a thunder and lightning phobia.

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« Reply #4 on: July 02, 2007, 04:03:30 AM »
naa siyay taguanan sa inyo?

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Re: 7 Facts About Lightning
« Reply #5 on: July 02, 2007, 04:06:35 AM »

wala oi...manageable ra man pud siya..hehe

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« Reply #6 on: July 02, 2007, 05:21:36 AM »
I remember when I was little, my yaya would cover the mirrors with any piece of cloth during a lightning storm. Do you know any explanation about this, Ghost?
This smacks of a grand conspiracy to hide the non-existent, to identify the nameless, to paint a picture of the unseen. -- Benelynne

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« Reply #7 on: July 02, 2007, 05:24:50 AM »
na notice pud na nako GEC, dili man gani pa ngisihon kay makilatan daw, bisan unsa nga sinaw tabunan,a mbot nganong dili pu pangisihon nga dili amn unta mga sinaw ug ngipon lol

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« Reply #8 on: July 02, 2007, 06:55:04 AM »

Nahagbong ko's akong banko og kinatawa, mfrandsen ;D.

Bitaw, seriously.... dili kaha nga gituhoan nga mo-reflect ang kilat sa samin unya mosulod na hinoon sa balay ug himoon ang tumang kadaot?

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« Reply #9 on: July 02, 2007, 03:37:54 PM »
hahaha ambot lang GEC basta mao na ila giingon, alagang sanga sa bayabas man gud ang mga ngipon sa taga amoa maong shiny guro lol

lumine

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« Reply #10 on: July 02, 2007, 05:14:29 PM »

ikaw cel ha? nakamata nasad ako anak coz i wasn't able to control my laughter.hehehe!

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« Reply #11 on: July 02, 2007, 05:18:44 PM »

mura ang reflections, GEC.
months ago, my elder sis bought a new tv for my mom kay naigo sa kilat daw. fortunately, she wasn't hurt.

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« Reply #12 on: July 02, 2007, 10:19:20 PM »

pinacute lang gud nga laughter lumin para dili makamata ang imo anak  ;D


Thanks god kay ok ra imo mama lumine

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« Reply #13 on: July 02, 2007, 11:13:20 PM »
di na pod ko motoo anang naigo sa kilat uy! kabalo ba mo na a thunderbolt of lightning is hotter than the surface of the sun?

lumine

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« Reply #14 on: July 03, 2007, 12:41:03 AM »

dili pwede pacute kay makaagik-ik man sad imo tubag gud,hehe! out na lang noon ko da!

nitaas tawn kalit iya dugo. naguol tawn amo mga silingan kung asa na sila motan-aw boxing kay ang uban naay cable kay dili man patan-aw, so mao gipalitan dayon sila ug tv.

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« Reply #15 on: July 04, 2007, 04:46:01 AM »
maayo nuon, grabe pud na uban silingan dili patan-aw sa tv?

slackware

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« Reply #16 on: July 04, 2007, 04:46:52 AM »
mao na mga tao na ija2x aho2x...dili kay tagabohol!

lumine

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« Reply #17 on: July 04, 2007, 04:27:00 PM »

kay samukan sila, unya mahugaw ila balay,etc.
ganahan sad sila sa amoa kay amo amahan kay pakatok man kanunay, kung naay kwarta, libre snacks,hehe,kung walay kwarta, i-treat sila sa ako amahan sa iya mga jokes.

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« Reply #18 on: July 04, 2007, 04:55:52 PM »
mao diay pud, nindot jud bitaw tan-awan nang dili ka magkingking ba



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AF-1 (rear) and AF-2, F-35A Lightning II

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