Few people know that after a lightning strike in the ground do not disappear, and
turn to stone ...
Petrified lightning appear when hit very powerful lightning
Earth's surface and due to lightning strikes in sandy or saturated
quartz soil, bedrock deep in the soil of vitrified sand
formed hollow branched tubes with smooth or covered with small
the inner surface of the bubbles.
Sometimes individual drops are formed.
The appearance of the glass tube due to the fact that between the grains always
are air and moisture.
Electric lightning current in a fraction of seconds heats the air and water vapor
to enormous temperatures, causing an explosion in the air pressure
between the grains and its extension.
Expanding air forms a cylindrical cavity inside
molten sand.
The largest zipper found Allan Mc Callum.
Length 17 feet (5 m 2).
For that and hit the Guinness Book of Records.
Often carefully dug out of the sand shaped like a lightning root
tree branch or with multiple branches.
Such branching fossils are formed when a lightning bolt falls
in the wet sand, which, as you know, has more
conductivity than dry.
In these cases, the lightning current entering into the soil immediately begins to spread in
hand, forming a structure similar to the root of the tree, and is generated in the
This fossil merely repeats this form.
Since lightning is very fragile, and its production and processing is very complicated,
hunters get them a lot of money for their findings, of which
make decorations.
Hunting for lightning is mainly in the Gobi desert, the Sahara, the Australian
Desert, Egypt.
Many are near the people affected by lightning.
In fact, petrified lightning is a natural glass, with
prehistoric times people make of them jewelry.
Such stones jewelry is very valued in ancient Egypt, priests.
They believed that their divine power gives ...
Processed lightning called fulgurite or Lechatelierite
(Lechatelierite).
At the beginning of May 2006 in the state of Minnesota, in Minneapolis on tratuary
found strange scars. About 3 m in length, about 5 segments,
each about 2 cm deep and 5 cm in width.
Upon closer inspection, it turned out that at the edges "scar" almost
fully instructed black transparent stones similar to
glass.
Then write it off on the discharge of high-voltage cables passing directly
over the same place.
Just do not take into account that the melting temperature of the sand (quartz) more
1700 ° C, so it broke the surface of the zipper.
All the same, Allan Mc Callum decided to make man-made fossil,
built a hell of a unit, began experiments.
Who have not been successful.
As a result, he was able to get only a few tubes, no thicker than
straws, though long, but crumble at the first touch,
It was impossible to get them.
So when you next play in the sandbox or wallow
on the sandy beach and you can see here is such a thing:
Or similar to the following:
Know that this is your gift of nature - petrified lightning ...
It is quite possible that you will become the sole owner of the exclusive
decoration ...
On this Site: webecoist.com, en.wikipedia.org, ru.wikipedia.org
Source: