Gallium || Ga - This element is so interesting to me. It has a melting temperature of about 85 degrees Fahrenheit, which is basically room temperature. If you hold this metal it will begin to melt in your hand. 
    “Its melting point is used as a temperature reference point.”

Gallium || Ga - This element is so interesting to me. It has a melting temperature of about 85 degrees Fahrenheit, which is basically room temperature. If you hold this metal it will begin to melt in your hand. “Its melting point is used as a temperature reference point.”

Name: cobalt / English name: cobaltite  Name meaning, origin:   Composition: CoAsS  Crystal System: orthorhombic  Color: ezüstfehértől szürkésfeketéig  Light: polished metal  Mohs hardness: 5.5  Density: 6.32 to 6.34 g / cm 3  Fission: perfect  Fracture: uneven  Others: Easy-melt, melt slightly magnetic; nitric acids.

Name: cobalt / English name: cobaltite Name meaning, origin: Composition: CoAsS Crystal System: orthorhombic Color: ezüstfehértől szürkésfeketéig Light: polished metal Mohs hardness: 5.5 Density: 6.32 to 6.34 g / cm 3 Fission: perfect Fracture: uneven Others: Easy-melt, melt slightly magnetic; nitric acids.

Durch die CD Hülle kann man eindrucksvoll das Wachstum einer Pflanze zeigen!

Grass seeds+soil+CD case= Cool!

Durch die CD Hülle kann man eindrucksvoll das Wachstum einer Pflanze zeigen!

"This is What Happens When Sand Gets Struck by Lightning:  Fulgurites are natural hollow glass tubes formed in quartzose sand, silica, or soil by lightning strikes (at 3,270 °F), which instantaneously melts silica on a conductive surface and fuses grains together over a period of around one second. Photographed by Ken Smith."

"This is What Happens When Sand Gets Struck by Lightning: Fulgurites are natural hollow glass tubes formed in quartzose sand, silica, or soil by lightning strikes (at 3,270 °F), which instantaneously melts silica on a conductive surface and fuses grains together over a period of around one second. Photographed by Ken Smith."

A Fulgurite or Petrified Lightning is made when lightning strikes loose sand. It vaporizes a thin wormhole and melts the zone around it, creating an instant froth of natural glass.  In 1996 the International Center for Lightning Research and Testing excavated this fulgurite to a depth of nearly 6 meters, then removed it for museum display.

The Dangers of Lightning

A Fulgurite or Petrified Lightning is made when lightning strikes loose sand. It vaporizes a thin wormhole and melts the zone around it, creating an instant froth of natural glass. In 1996 the International Center for Lightning Research and Testing excavated this fulgurite to a depth of nearly 6 meters, then removed it for museum display.

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