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    copper

    US /ˈkɑpɚ/

    ・

    UK /'kɒpə(r)/

    B1
    n. (u.)Uncountable NounReddish-brown metal used in cables or wires
    All the electric wiring is made from copper

    Video subtitles

    What is Ethernet?

    09:11What is Ethernet?
    • Ethernet is a wired system that started with using coaxial cable and has successfully progressed to now using twisted pair copper wiring and fiber optic wiring.

      Ethernet is a wired system that started with using coaxial cable and has successfully progressed to now using twisted pair copper wiring and fiber optic wiring.

    • and has successfully progressed to now using twisted pair copper wiring

      and has successfully progressed to now using twisted pair copper wiring

    B2

    The Periodic Table Song (2018 UPDATE!)

    03:05The Periodic Table Song (2018 UPDATE!)
    • Copper, zinc, and gallium, germanium, and arsenic.

      Copper, zinc, and gallium, germanium, and arsenic.

    • Copper, Zinc and Gallium

      Copper, Zinc and Gallium

    C1

    EMMA WEBSTER : THAT THOUGHT MIGHT THINK | LOS ANGELES

    06:58EMMA WEBSTER : THAT THOUGHT MIGHT THINK | LOS ANGELES
    • And there's so many interesting little moments of light, reflected light, and the way that the sort of golden light comes down and then interacts with the root system down here, more of a red copper.

      And there's so many interesting little moments of light, reflected light, and the way that the sort of golden light comes down and then interacts with the root system down here, more of a red copper.

    • the way that the sort of golden light comes down and then interacts with the root system down here in more of a red copper.

      the way that the sort of golden light comes down and then interacts with the root system down here in more of a red copper.

    B1

    A Christmas Carol by Charles Dickens Full Audiobook with Subtitles and Chapters

    17:28A Christmas Carol by Charles Dickens Full Audiobook with Subtitles and Chapters
    • Upon Christmas Day!" Martha didn't like to see him disappointed, if it were only in joke, so she came out prematurely from behind the closet door and ran into his arms, while the two young Cratchits hustled Tiny Tim and bore him off into the washhouse that he might hear the pudding singing in the copper.

      Upon Christmas Day!" Martha didn't like to see him disappointed, if it were only in joke, so she came out prematurely from behind the closet door and ran into his arms, while the two young Cratchits hustled Tiny Tim and bore him off into the washhouse that he might hear the pudding singing in the copper.

    • The pudding was out of the copper!

      The pudding was out of the copper!

    B2

    Route 66 Motorcycle Road Trip | Arizona Cowboys, Hot Rods & Diners

    12:34Route 66 Motorcycle Road Trip |  Arizona Cowboys, Hot Rods & Diners
    • Patius dynamically plunged into the copper chip soil, leaving nothing but warts.

      Patius dynamically plunged into the copper chip soil, leaving nothing but warts.

    B1

    11 Things That Can Change Your Eye Color

    12:2411 Things That Can Change Your Eye Color
    • They're caused by deposition of excess copper in the cornea, which lays over the top of the iris.

      They're caused by deposition of excess copper in the cornea, which lays over the top of the iris.

    • These rings are common in patients with Wilson's disease, a genetic disorder which causes an error in copper metabolism in the body.

      These rings are common in patients with Wilson's disease, a genetic disorder which causes an error in copper metabolism in the body.

    B1

    How AI’s Need For Nuclear Energy Is Fueling A Rise In U.S. Uranium Mining

    12:46How AI’s Need For Nuclear Energy Is Fueling A Rise In U.S. Uranium Mining
    • An executive order from President Trump has boosted the ability for the United States to produce some of the critical minerals like uranium, copper and gold to help reduce reliance on imports from other countries.

      An executive order from President Trump has boosted the ability for the United States to produce some of the critical minerals like uranium, copper and gold to help reduce reliance on imports from other countries.

    • An executive order from President Trump has boosted the ability for the United States to produce some of the critical minerals like uranium, copper, and

      An executive order from President Trump has boosted the ability for the United States to produce some of the critical minerals like uranium, copper, and

    B2

    A old man's advice

    10:20A old man's advice
    • My latest is Copper Penny.

      My latest is Copper Penny.

    • My latest is Copper Penny.

      My latest is Copper Penny.

    A2

    How The Next Batteries Will Change the World

    11:28How The Next Batteries Will Change the World
    • And it was called a pile because it was literally a pile of two different types of metal—in this case, copper and zinc—separated by typically a piece of cardboard that was dipped in vinegar.

      And it was called a pile because it was literally a pile of two different types of metal—in this case, copper and zinc—separated by typically a piece of cardboard that was dipped in vinegar.

    • And it was called a pile because it was literally a pile of two different types of metal—in this case, copper and zinc—separated by typically a piece of cardboard that was dipped in vinegar.

      And it was called a pile because it was literally a pile of two different types of metal—in this case, copper and zinc—separated by typically a piece of cardboard that was dipped in vinegar.

    B1

    Is Organic Really Better? Healthy Food or Trendy Scam?

    09:21Is Organic Really Better? Healthy Food or Trendy Scam?
    • Most organic pesticides are natural toxins like vegetable oils, potash soap, sulfur, or copper sulfates,

      Most organic pesticides are natural toxins like vegetable oils, potash soap, sulfur, or copper sulfates,

    • In fact, in the case of copper sulfate, often used on organic apples, the organic pesticide of choice is actually more harmful to humans.

      In fact, in the case of copper sulfate, often used on organic apples, the organic pesticide of choice is actually more harmful to humans.

    B1