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"Trevor Wilson" wrote in message
"Schizoid Man" wrote in message ... "Arny Krueger" wrote in message No, Evolution will always be a theory. Observable changes over time can be facts. The first electron microscopes appeared in the late 70s and early 80s that enabled us to see atoms for the first time. I guess that means that before we actually 'observed' them, the existence of atoms was a theory too? You need to take a science class again, Arny. **I hate to burst your bubble with a random act of pedantry, Nicely said, Trevor! but electron microscopes cannot 'see' atoms. About the best they can manage is to 'see' are some of the larger molecules. Agreed. Furthermore as I showed in another post, the Electron Microscope was invented in the late 1930s, about a half a century earlier than Schizoid Boy thinks it was. Atoms can only be 'seen' by a scanning-tunnelling microscope (so far). Invented by IBM, as I recall, who rearranged a few dozen atoms to form the company logo. Again agreed that the scanning-tunnelling microscope can view and manipulate atoms. http://physics.nist.gov/GenInt/STM/text.html "The same principle was later used in the scanning tunneling microscope. The remaining barrier to the development of that instrument was the need for more adequate vibration isolation, in order to permit stable positioning of the tip above the surface. This difficult problem in mechanical design was surmounted through the work of Gerd Binnig and Heinrich Rohrer, IBM Research Laboratory, Zurich, Switzerland, who in 1986 shared in the Nobel Prize in Physics for their discovery of atomic resolution in scanning tunneling microscopy. In their announcement of the award, the Royal Swedish Academy of Sciences recognized the pioneering studies of Russell Young." |
#2
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On Fri, 14 Jan 2005 05:11:34 -0500, "Arny Krueger"
wrote: "Trevor Wilson" wrote in message "Schizoid Man" wrote in message ... "Arny Krueger" wrote in message No, Evolution will always be a theory. Observable changes over time can be facts. The first electron microscopes appeared in the late 70s and early 80s that enabled us to see atoms for the first time. I guess that means that before we actually 'observed' them, the existence of atoms was a theory too? You need to take a science class again, Arny. **I hate to burst your bubble with a random act of pedantry, Nicely said, Trevor! but electron microscopes cannot 'see' atoms. About the best they can manage is to 'see' are some of the larger molecules. Agreed. http://www.labonline.com.au/science/...em_112002a.asp http://www.physics.purdue.edu/nanophys/images/mos2.jpg Those are single atoms on there, pals. But more on that in a minute. Furthermore as I showed in another post, the Electron Microscope was invented in the late 1930s, about a half a century earlier than Schizoid Boy thinks it was. He never claimed that it was invented in the late 70s and early 80s. He said this: The first electron microscopes appeared in the late 70s and early 80s *that enabled us to see atoms for the first time*. This is speaking of a specific type of electron microscope. I guess you stopped reading before the word "that". Atoms can only be 'seen' by a scanning-tunnelling microscope (so far). Invented by IBM, as I recall, who rearranged a few dozen atoms to form the company logo. Again agreed that the scanning-tunnelling microscope can view and manipulate atoms. Then how can you agree with the statement: "but electron microscopes cannot 'see' atoms. About the best they can manage is to 'see' are some of the larger molecules". http://physics.nist.gov/GenInt/STM/text.html "The same principle was later used in the scanning tunneling microscope. The remaining barrier to the development of that instrument was the need for more adequate vibration isolation, in order to permit stable positioning of the tip above the surface. This difficult problem in mechanical design was surmounted through the work of Gerd Binnig and Heinrich Rohrer, IBM Research Laboratory, Zurich, Switzerland, who in 1986 shared in the Nobel Prize in Physics for their discovery of atomic resolution in scanning tunneling microscopy. In their announcement of the award, the Royal Swedish Academy of Sciences recognized the pioneering studies of Russell Young." You see, according to Nobelprize.org: "The Scanning Tunneling Microscope The scanning tunneling microscope (STM) is a type of electron microscope that shows three-dimensional images of a sample. In the STM, the structure of a surface is studied using a stylus that scans the surface at a fixed distance from it". Ooops, pedantry shot down in flames. Sorry guys, you lose. Trumped by the good folks who bring you the Nobel prize. |
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