By: James Vigh
At last count, there were over 1,500 identified active volcanoes in the world and of these 130 of them are grouped in the 17,500 island chain of Indonesia – far more than in any other country. And some of these are famous &ndash...
Why the volcanoes of Java are particularly devastating
By: James Vigh
Java is one of the some 17,500 islands that make up the country of Indonesia. Most of these islands are mere flyspecks, while others are larger and more populous. Java, for example has a population (as of 2010) of some 124 million people. Indonesia...
By: Rex Trulove
When people talk about a devastating eruption, it is often in reference to the amount of damage caused for mankind. Volcanoes are vehicles for both destruction and creation, however almost all can be devastating, even when they aren't close to a populated area. The volcanoes...
How petrified wood is formed
By: Dave Thomson
The process of petrified wood creation is quite interesting to say the least. Petrified wood is created over a long period of time when a tree essentially turns into stone, namely quartz, as a result of a complicated process called permineralization. This process takes place...
By: Prabhjot Bhardwaj
Sulfur is a very common and highly effective fungicide that has been in use in one form or another for a very long time. Sulfur is used for the prevention and control of powdery mildew on most fruit crops like apples, gooseberries, hops, ornamentals, peaches...
The use of sulfur as a fungicide
By: Trenna Sue Hiler
The use of sulfur in gardening goes back a long time in history. Over 3000 years ago Homer mentions the use of sulfur and a pesticide. As it turns out is is also very effective as a fungicide treatment as well. It is very important...
By: Mike Mwendwa
Geode is a Latin word which loosely translates to “earthlike”. The geode specimens are near perfect spheres which normally range from 2 inches to 6 inches in diameter and in some cases up to 2 feet in diameter. Inside the geodes are crystal linings...
By: Elizabeth Nuttall
Most gems are relatively rare and this is what accounts for the monetary value of them. However, some gems are more rare than others, to such an extreme that many people have never heard of some of them. Here is an overview of the ten...
By: Mike Mwendwa
The word petrify comes from the Greek word piedra, which means rock. So when someone says they were petrified it basically means they were scared into becoming as stiff as a rock. Scary episodes are for another day but for right now we shall delve...
By: Michael Totten
All gemstones are rare. That's part of what makes them gemstones. However, some gemstones are much harder to find than others. Some gemstones can only be found in a small area. In some cases, a specific variant of a well-known gemstone is extremely rare. The...

 

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