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stove

Description ...

Humans have been decorating themselves with gold since at least 4000 B.C., according to the National Mining Association. From Eastern Europe to the Middle East to the tombs of Egyptian Pharaohs, gold appears throughout the ancient world. A Stone Age woman found buried outside of London wore a strand of gold around her neck; Celts in the third century B.C. wore gold dental implants; a Chinese king who died in 128 B.C. was buried with gold-gilded chariots and thousands of other precious objects. Gold is malleable and shiny, making it a good metalworking material. Chemically speaking, gold is a transition metal. Transition metals are unique, because they can bond with other elements using not just their outermost shell of electrons (the negatively charged particles that whirl around the nucleus), but also the outermost two shells. This happens because the large number of electrons in transition metals interferes with the usual orderly sorting of electrons into shells around the nucleus. All the gold that makes up earrings and cufflinks and electronics components today originated in space: According to a 2011 paper in the journal Nature, a meteor bombardment nearly 4 billion years ago brought 20 billion billion tons of a gold-and-precious-metal-rich space rock to Earth. Tracing gold's origin back even further takes us into deep space. A 2013 study in The Astrophysical Journal Letters found that all of the gold in the universe was likely birthed during the collisions of dead stars known as neutron stars. Gold is still used in jewelry, of course, but this element has also gone high-tech. Gold is an excellent conductor of electricity and is very non-reactive with air, water and most other substances, meaning it won't corrode or tarnish. Gold is also used in medicine. The radioactive gold isotope Au-198 can be injected directly into the site of a tumor, where its radiation can destroy tumor cells without much spillover to the rest of the body. In 2012, researchers reported in the journal Proceedings of the National Academy of Sciences that they could link nanoparticles of Au-198 with a compound found in tea leaves to treat prostrate cancer. The tea compound is attracted to the tumor cells, keeping the nanoparticles glued to the right spot for several weeks while the radiation treatment occurs. (The method has yet to be tested on humans.)

Properties ...
    name properties
    numvalue floatvalue textvalue ntextvalue multi enabled
    Stove name 0 0 1 0 0 1
    brand 0 0 1 0 0 1
    model 0 0 1 0 0 1
    Type 0 0 2 0 0 1
    installation type 0 0 2 0 0 1
    Fuel type 0 0 2 0 0 1
    plate Material 0 0 2 0 0 1
    Body Material 0 0 2 0 0 1
    pan support material 0 0 2 0 0 1
    Knob material 0 0 2 0 0 1
    Ignition method 0 0 2 0 0 1
    Number of Burner 1 0 0 0 0 1
    Gas consumption 0 0 1 0 0 1
    Thermal efficiency 0 0 1 0 0 1
    Energy Efficiency 0 0 2 0 0 1
    Heating energy (BTU) 0 1 0 0 0 1
    oven heating type 0 0 2 0 0 1
    burner type 0 0 1 0 0 1
    thermal power (kw) 0 0 1 0 0 1
    Voltage(v) 0 0 1 0 0 1
    power of Broil element (w) 0 0 1 0 1 1
    power of Bake Element (w) 0 0 1 0 1 1
    power of Convection Element (w) 0 0 1 0 1 1
    Number of oven floors 1 0 0 0 0 1
    Oven Capacity 0 0 1 0 0 1
    Oven Setting Modes 0 0 2 0 0 1
    Control Type 0 0 2 0 0 1
    Dimensions (cm) 0 0 1 0 0 1
    Inner cutting size (mm) 0 0 1 0 0 1
    outer cutting size (mm) 0 0 1 0 0 1
    Burner Size (mm) 0 0 1 0 0 1
    Wire length 0 0 1 0 0 1
    Weight (kg) 0 0 1 0 0 1
    Color group 0 0 2 0 0 1
    Colour 0 0 1 0 1 1
    accessories 0 0 2 0 0 1
    Features 0 0 2 0 0 1
    Certification 0 0 1 0 1 1
    after sales service 0 0 2 0 0 1
    guarantee period 0 0 2 1 1 1
    warranty period 0 0 2 1 1 1
    guarantee Conditions 0 0 1 0 1 1
    Description 0 0 0 1 1 1
    Original Photo 0 0 1 0 0 1
    Thumbnail 1 0 0 1 0 0 1
    Thumbnail 2 0 0 1 0 0 1
    Thumbnail 3 0 0 1 0 0 1
    subject 1
    Descriptions 1
Groups ...
  1. 1. household electrical appliances
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