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Explain why with scanning probe microscopy technology you see not actual atoms but rather image of them?
Wiki User
∙ 12y ago
Well, the most obvious answer is that when you see the image, you're not LOOKING at the atoms, you're looking at a monitor.
The image in STM is a computer-generated representation of the surface based on information collected by the probe. Visible light is not involved at any point before the computer-generated image gets to the monitor, so clearly you're not "seeing" the "actual atoms".
Wiki User
∙ 12y ago
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What are three uses of the Transmission Electron Microscope?
There are two types of electron microscopes: scanning and transmission. They function differently from regular ocular microscopes in that the focusing devices are not glass lenses. The focusing device is a beam of electrons in a vacuum tube focused between two large magnets, with the sample to be observed in the middle. Electron microscopes were built so that a sample could be studied not at the cellular level, but at the molecular level. It is possible to see actual molecules with an electron microscope. Scanning electron microscopes (SEM) examine the surface of the sample. The sample is first frozen in liquid nitrogen, then fractured so it spits in half, is then placed in the vacuum chamber of the scanning microscope and the electron beam scans the inner surface of the sample. The electrons are then digitized, sent to a computer and an image is produced. With transmission electron microscopes (TEM) the beam of electrons penetrates the sample - it is not a surface scan. Again, a biological sample is frozen in liquid nitrogen, then thin sectioned - cut into microscopically thin slices - then placed into the vacuum chamber of the TEM and the beam penetrates the sample to gain imagery of the molecular structure of the sample. The first million-volt electron microscope was developed by Jan LePoole, a Dutch physicist, during WWII in an effort to study metal fracture rates for bombs. He beat the Nazis in a race to build the two story microscope, won the Noble Prize and was knighted by the queen of the Netherlands. The major manufacturers of these microscopes are Philips, Hitachi, and Joel. Visit any of their websites. To learn more about scanning and transmission electron microscopes also visit the website of the Microscopy Society of America (MSA).
What is the actual density of sulfur?
The actual density of sulfur is 300 kg
Describe the subatomic particles in an atom?
Subatomic particles are particles that are smaller than the actual particle. which means that the actual atoms had a sub-atom,which is apart of the actual atom
Can a reaction ever have 110 actual yield?
No, a reaction can never have an actual yield of 110. If an actual yield of 110% if obtained, then the product must contain impurities which increase the experimental mass.
What is The actual material that is consumed by a fire is?
oxygen
Is a human leg prosthesis an example of science or technology explain?
Science helped to invent and improve it but the actual leg prosthesis would be considered technology.
Explain the core actual and augmented products of the educational experience that universities offer?
Explain the core actual and augmented products of the educational experience that universities offer?
Do the actual results deviate from what was expected If so explain how?
whats the meaning accurately expected results and actual results
Is the actual surface of a work of art?
yes it is it is hard to explain though
What do you do next when you estimate 120 and find an actual quotiont of 83. explain?
Yes
How and where is technology used in an Airline organization?
Computer technology is used in an airline organization for reservations, scheduling, and payments. It is used at the reservation desk as well as on the actual plane.
Is technology renewable?
Um. What do you mean by technology? There are the actual components such as the physical computer. That is somewhat recyclable, so a little bit yes. If you mean the energy used for technology, that is definitely renewable. So in short, it is somewhat renewable,
Which is the fastest memory technology or sdram or ddr3 sdram or ddr sdram or ddr2 sdram?
The fastest technology in actual is laan, laan is the longest and most profound memory ever.
Will the estimate of 537 divided 8 be less than or greater than the actual quotient explain your answer?
67.125
Explain how a proportion is used to convert measurements on a scale drawing or map to actual lengths or distances?
Hi
Explain the possible reasons why the actual performance might be different from the budgeted performance.?
TARC AFA students?
Explain the possible reasons why the actual performance might be different from the budgeted performance?
TARC AFA students?
