lunes, 12 de diciembre de 2011

Silvia's Plants and roots growing

SILVIA'S PLANTS
Did you realize that this is a magic plant?
SCIENCE it's written on it!


              This is the experiment with the roots. Let's see how they grow


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