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Fulgurite - Lightning Fused Sand
Fulgurite - Lightning Fused Sand
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Fulgurite - Lightning Fused Sand
RM-640
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What happens when nearly 1 billion Joules of lighting energy strikes sand? These tubular formations are typical of the result!
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What happens when nearly 1 billion Joules of lighting energy strikes sand? These tubular formations are typical of the result! With temperatures reaching 30,000 degrees Kelvin, the sand is melted or vaporized leaving behind these amorphous glass tubes. Each approximately 2 inch long sample comes in an easy to open plastic case. A great addition to your Weather or Geology unit! These are natural products and in relatively limited supply, specimens will vary in size, shape and color.
Lightning! - NOVA Video
Lightning is one of the most common and least understood phenomena in meteorology.
Oudin Coil - "Tesla Coil" Visualizer
Screw in an ordinary clear light bulb to turn your Tesla coil into a great high voltage demonstration!
Petrified Wood
One end of each sample has been highly polished, allowing students to observe much more detail within the structure of the fossil.
Pyrite Cubes
Cubic specimens of FeS
2
, formed over 100 million years ago by sulfur reacting with iron.
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