miércoles, 7 de diciembre de 2011
lunes, 5 de diciembre de 2011
sábado, 3 de diciembre de 2011
Naica Crystal Cave. Mexico
One of the world's most spectacular geographical discoveries was the cave of giant crystals with its selenite crystals of a size never seen before. most of them measure six meters in length, with some of them reaching eleven meters.
The temperature at this depth varies from 45°C to 50°C, while the percentage of humidity ranges from 90 to 100%, meaning that human beings cannot survive there for longer than two hours
The temperature at this depth varies from 45°C to 50°C, while the percentage of humidity ranges from 90 to 100%, meaning that human beings cannot survive there for longer than two hours
jueves, 1 de diciembre de 2011
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miércoles, 23 de noviembre de 2011
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viernes, 18 de noviembre de 2011
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