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    • How a Volcano Erupts

      How a Volcano Erupts

      A volcano is any opening in the Earth’s surface that allows molten rock and volcanic gases to escape from far below the Earth’s surface. Although many volcanoes are mountainous in shape, a volcano can exist in nearly any form, including volcanic vents on the ocean floor, ice volcanoes, which have been found on a variety

    • Potassium Alum

      Potassium Alum

      Potassium alum is also known as potash alum, tawas, and alum (its common name). The specific compound is the hydrated potassium aluminum sulfate and it is commonly found in deodorant, aftershave treatments, fireproof textiles, baking powder, and used in leather tanning and water purification. It is soluble and liquefies when heated. Potassium alum is colorless

    • Future Flying Cars

      Future Flying Cars

      A flying car is a personal flying machine that does not require special equipment, runways, or traffic routes. Flying cars differ from commercial aircraft such as airliners, helicopters, and jets. Flying cars are designed to hold only a few people and are no larger than a regular automobile. While flying car designs have been in

    • Supercavitation

      Supercavitation

      Cavitation happens when water moves at extremely high speed around an obstruction in its normal flow. This causes the water pressure around the propeller to drop, creating air bubbles which dissolve after a few moments and causing water to rush in on the empty space created previously by the bubbles then crashing against the obstruction.

    • How Do Zambonis Work?

      How Do Zambonis Work?

      In the world of ice hockey and ice skating, there is nothing more important than maintenance of the ice. Failure to properly take care of an ice rink could result in broken bones, property damage, or the loss of a game. In order to efficiently care for an ice rink, ice rink owners spend large

    • Infrared

      Infrared

      Infrared light is a form of electromagnetic waves. In its visible form, infrared can be seen as red or violet. Visible infrared waves are very short, measuring about 750 nm in length; longer infrared waves which are closest to microwaves are about 1mm in length. Infrared Waves While most infrared wave lengths give off heat,

    • Paraffinum Liquidum

      Paraffinum Liquidum

      Paraffinum Liquidum (mineral oil) is a petroleum by-product and is created through distillation. Mineral oil is completely transparent and is basically a liquid form of petroleum jelly. It is produced in large quantities and is used in many different ways all over the world, mostly due to its low toxicity and low cost. Mineral oil

    • What is Electroluminescence?

      What is Electroluminescence?

      Electroluminescence is the phenomenon where a material emits light when electricity is passed through it. It is one of the greatest discoveries of the twentieth century and other forms of luminescence, including incandescence, chemiluminescence, cathodoluminescence, triboluminescence, and photoluminescence rival it. Electroluminescence generally involves a material producing light without producing heat. It is different from black

    • U.S. Drones

      U.S. Drones

      The U.S. drone program has seen significant press since the first Gulf War when the defenders of Faylaka Island surrendered to the Pioneer drone, or Unmanned Aerial Vehicle (UAV), flying spotting services for the USS Wisconsin (BB 64). Since that time, the technology powering U.S. drones has steadily improved now allowing the MQ-1B Predator and

    • What is Anthracite Coal?

      What is Anthracite Coal?

      Anthracite coal is a form of coal that is almost made entirely of carbon. Anthracite coal is much harder than other forms of coal such as bituminous, and is usually found in areas surrounding mountains or deep valleys. Anthracite burns much cleaner than other forms of coal due to its low pollutant content. In fact,

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