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If David's microscope is powerful enough, we should see regular rows of copper atoms with tin atoms packed in between. Well, thanks for my tour into the, to the unseen and to what used to be the pure, purely theoretical.I can't believe I can now put on my resume that I've seen atoms. This amazing ability to see atoms has opened up new worlds for scientists.About three quarters of the elements are metals, and gold is one of the most standoffish. In copper, they can slide past each other easily, which makes it relatively soft and easy to dent, not right for a bell. Ralph places the form into a circular steel sleeve, then fills the space around it with a mixture of sand and epoxy, to withstand the searing heat of the hot metal. Adding tin to copper during melting changes the properties of the metal.How an atom reacts chemically depends on how willing it is to share electrons with others, and gold is not very social. So do other so-called "noble" metals: silver, platinum, palladium, osmium and iridium, all located in the same quiet neighborhood of the periodic table. The golden mud goes into a 2,000-degree induction furnace, along with a white powder called flux, chemicals that prevent the molten gold from reacting with or sticking to anything. When this company started, they used a mixture of horsehair, manure and just about anything else that would hold a shape without burning, but the goal was the same: to create a hollow shape that follows the inner and outer perimeter of the bell. The larger tin atoms restrict the movement of the copper atoms, making the material harder.
To find out, I'm taking a piece of it to David Muller, at Cornell University. Then the sample is inserted into a powerful electron microscope. To understand the scale, imagine if I were floating in space, 2,000 miles above the earth, looking down at the United States. Now what we're actually starting to see is the microstructure of the grains in that bronze. They are meant to absorb and reflect sound, because the microscope itself is so sensitive that if you were to talk, just the pressure wave from your voice is going to, is going to give enough mechanical vibration to shake this thing around.
Muller's lab has successfully captured many other images of atoms in gold and computer chips, oxygen, powerful magnets and even glass.