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...tools have proved more valuable to research scientists than the scanning electron microscope. Magnifying their targets 50,000 times or more, these instruments have explored so deeply into the heart of matter that they can distinguish features only 100 atoms in diameter. Yet for all their sharp-eyed versatility, the microscopes have a serious drawback: they have such a large depth of field that in their two-dimensional pictures it is often difficult to distinguish cracks from ridges or pits from lumps...
This so-called "third career track" within Harvard has only a minor precedent (some scientists connected with Harvard's Electron Accelerator) and its non-administrative, non-teaching character could allow Harvard to offer continuing expertise to developing nations that would benefit from the relative intellectual freedom prevalent at a university...
...author wisely does not predict where man's skills will take him. As a scientist, he recognizes that human progress is governed by the same uncertainty principle that applies to the movement of electrons. Science can specify where a moving electron is at any given moment, but cannot tell where the electron started from or where it will stop. Nor can science be any more exact when it comes to man. His origins are shrouded in mystery. All that is certain is that man is still evolving and, if the past is really a prologue, ascending. · Peter Stoler
...start, they are trying to make a rectifier, a simple device for changing the periodically reversing flow of electrons in alternating current (AC) into the one-way flow of direct current (DC). Like the cathode in ordinary vacuum tubes, one end of the molecular rectifier would act as a donor of electrons because it would be made out of a molecule that had a lower binding energy. The other end, carrying a higher binding energy, would serve as an anode, or electron acceptor. Thus, if an external alternating voltage were applied, the large molecule would act as a rectifier...
Schmitt pioneered the use of X-ray diffraction and polarization optics to explore the inner workings of cells, and studied molecular biology before the term was invented. Head of the team that was first in the U.S. to use an electron microscope for studying biological tissues, he is also well known for his work on collagen, the clear protein material that fills the spaces between cells...