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To see what it takes to get something bigger than that tiny bead, I visit the processing plant where the ore ends up. Here too, extraction begins with crushing, in these huge tumblers. So what the farmers would do is they would say, for example, "David, you loan me some money, okay? I can hardly think of anything that doesn't have either a tiny bit of copper or lots of copper. When placed in a circuit, the negatively charged particles line up and flow as an electric current.
And that sets the stage for the trickiest step, coaxing the microscopic gold out of the rocky ore. And then, in the future, I will sell you that crop that I planted for this amount of dollar." So what I'm doing is I'm selling you the right to buy or sell my future crops. The sea of electrons also creates flexible, metallic bonds among the atoms.
Far from prying eyes, the ground erupts; heavy equipment moving millions of tons of earth in search of something: a secret, deep underground. I'm starting with one of humanity's first elemental loves: gold; symbol Au.
Join me on my Hunt for the Elements, right now, on NOVA. They tell me that so much money flows out of this place, it's like a gold mine. It's a journey that dives deep into the metals of civilization, marvels at the mysteries of the extremely reactive, reveals hidden powers and harnesses secrets of life, from hydrogen to uranium and beyond.
To unlock their secrets, David Pogue, technology columnist and lively host of NOVA's popular "Making Stuff" series, spins viewers through the world of weird, extreme chemistry: the strongest acids, the deadliest poisons, the universe's most abundant elements, and the rarest of the rare—substances cooked up in atom smashers that flicker into existence for only fractions of a second. Yet everything we know, the stars, the planets and life, itself, comes from about 90 basic building blocks,… …all right here, on this remarkable chart: the periodic table of the elements. And we're made, almost entirely, of just a handful of ingredients, including one that burns with secret fire inside us all. The sample, mixed with a lead oxide powder, goes into a furnace heated to 2,000 degrees. Using extreme heat, gold atoms are gradually coaxed away from the powdered rock. Turns out that an ounce per ton is pretty much optimal for the underground mine. The New York Mercantile Exchange is a vital hub in the global metals market, which is pretty good news for me. (Commodities Trader): Oh, this is an old, old business. It's so important that the rise and fall of copper prices provide a snapshot of the health of the entire world economy. Each atom gives up some of its electrons to create a kind of sea of these randomly moving charged particles.
It's a story that begins with the Big Bang and eventually leads to us. Join me as I explore the basic building blocks of the universe… …to the least—manmade elements that last only fractions of a second; strange metals with repellant powers;… So, after all that pulverizing and crushing and weighing and firing, what we're left with is this? Eighteen hundred dollars times…720,000 bucks a truck! The surface mine produces less, about half an ounce per ton. This goes back to the 1800s, the late 1800s, where farmers were looking, actually, for money to plant their next year's crops. We use it for infrastructure; we use it for electronic goods. When times are bad, copper prices tumble, and when times are good, they soar. It's these free-flowing electrons that make metals conductive.
Can we crack the code to build the world of the future? By digging, these guys are hoping to strike it rich. I'm on a quest to understand the basic building blocks of everyday matter. These symbols represent the atoms that make up every single thing in our universe: 118 unique substances arranged on an amazing chart that reveals their hidden secrets to anyone who knows how to read it.
It turns out that nature has concealed thousands of pounds of the stuff under billions of cubic feet of earth.
Here, at the Cortez Mine, in Nevada, high-tech prospectors are moving mountains, closing in from above and below. Which raises a question: if the gold is invisible to the naked eye, how do they even know if they're digging in the right place? Eight bars, million, sitting on this unassuming little table. Of all the elements that touch our lives, nothing drives humankind to acts of love or destruction like gold. Copper alone is impressive stuff, but when ancient metallurgists combined it with another element, they invented a much tougher material that went on to conquer the world. Tin; symbol Sn; atomic number 50—50 protons and 50 electrons.
If you're like me, you care about the elements and how they go together,… The problem is it's exceedingly rare stuff in the earth's crust, and it's getting harder to find all the time. Mike tells me that each bar represents about a million pounds of rock that had to be moved and processed.
Every day she receives hundreds of samples of earth taken from the mine. …then pulverized to the consistency of baby powder. But two rows above gold is another metal of antiquity that looms large in our lives: copper; symbol Cu; atomic number 29—29 protons, 29 electrons. Bronze helped to spur global trade, and, once forged into tools and weapons, it played a defining role in the empires of antiquity. I'm here because they're about to cast several bells.Tags: Adult Dating, affair dating, sex dating