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17.11.2015, 16:47
Re: Nature - Discussion & Chat
Desert with a bird's-eye view.
Tegidda N'tesum, Niger.
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Rub 'al Khali, Saudi Arabia.
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Laguna Colorado, Bolivia.
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Parinacota Volcano, Bolivia.
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Ounianga-Kebir, Chad.
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Rub 'al Khali, Oman.
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Dasht-e Lut, Iran.
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Dead Sea, Jordan.
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Tassili du Hoggar, Algeria.
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17.11.2015, 12:24
Re: Nature - Discussion & Chat
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17.11.2015, 11:51
Re: Nature - Discussion & Chat
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Post: #4337
Last edited: 17.11.2015, 07:16
17.11.2015, 07:14
Re: Nature - Discussion & Chat
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17.11.2015, 05:42
Re: Nature - Discussion & Chat
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Post: #4335
Last edited: 16.11.2015, 19:40
16.11.2015, 19:38
Re: Nature - Discussion & Chat
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16.11.2015, 18:12
Re: Nature - Discussion & Chat
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16.11.2015, 16:41
Re: Nature - Discussion & Chat
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Post: #4332
Last edited: 16.11.2015, 13:57
16.11.2015, 13:51
Re: Nature - Discussion & Chat
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16.11.2015, 12:37
Re: Nature - Discussion & Chat
What types of lightning ?
Lightning - a gigantic electrical discharge in the atmosphere, usually observed during a thunderstorm.
It appears bright flash of light and accompanied by thunder.
The strength of the current in the discharge of lightning reaches 10-300 thousand amperes, the voltage - from tens of millions to a billion volts.
Discharge power - from 1 to 1,000 GWh. And with all this, the lightning - one of the most unexplored natural.
Linear cloud-to-ground lightning.
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Lightning earth - cloud.
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Lightning cloud-to-cloud.
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Horizontal lightning.
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Band lightning.
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Curtains lightning.
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Volume lightning.
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Elves - red sprite
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Ball - lightning.
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St. Elmo's fire.
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Volcanic lightning.
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16.11.2015, 12:23
Re: Nature - Discussion & Chat
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16.11.2015, 08:35
Re: Nature - Discussion & Chat
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16.11.2015, 08:07
Re: Nature - Discussion & Chat
The world's most expensive stones ...
Jeremejevite - $ 2,000 per carat.
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Fire Opal - $ 2,300 per carat.
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Poudretteite - $ 3,000 per carat.
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Benitoite - $ 4,000 per carat.
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Musgravit - $ 6,000 per carat.
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Red beryl - $ 10,000 per carat.
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Alexandrite - $ 12,000 per carat.
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Diamond - $ 15,000 per carat.
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Serendibit - $ 18,000 per carat.
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Grandidierite - $ 20,000 per carat.
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Taaffeite - $ 35,000 per carat.
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Red Diamond - 1000000 dollars per carat.
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Post: #4327
Last edited: 16.11.2015, 07:53
16.11.2015, 07:51
Re: Nature - Discussion & Chat
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15.11.2015, 21:39
Re: Nature - Discussion & Chat
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