Website review: Shedding Light on Life&&(May-June&2...
OliviaB discovered this in Medical Science
•2 reviews since Apr 19, 2008
medical-science
•harvardmagazine.com/2008/05/shedding-light-on...
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Jackanapes rated 6 days ago- From the page: "Like many new optical imaging techniques, Zhuang's takes advantage of small fluorescent molecules called fluorophores to create an image. Scientists can determine the location of a single fluorophore under a microscope with great precision, even though it is much tinier than a microscope's resolution. Light emitted from the molecule will produce a blurry image, but the center of this blur indicates where the actual molecule resides." Amazing! We are back to the future of microscopic imaging! Life can be viewed while living!
- laodan rated 3 weeks ago
- Shedding Light on Life in Harvard Magazine by Courtney Humphries
"The human brain is vision-focused," says professor of molecular and cellular biology Jeff Lichtman. "If we see things, then we think we know what they mean." To be able finally to see events that were known only in theory is incredibly satisfying for scientists. Even more important, this revolution also opens up the possibility of learning things about life that could never be studied before. \u201cWhat we hope to do at the end of the day,\u201d he says, \u201cis to understand biology as it unfolds in vivo rather than in snapshots.\u201d The resurgence in imaging excites biologists for two reasons: it allows them to see individuals, and it allows them to count the masses. Being able to watch and track a single molecule, cell, or process offers a much more complete picture of how life works. Tom Kirchhausen predicts that in the next few years, scientists will use imaging to better understand complex processes such as cell division and the paths that viruses take to cause infection. Shedding Light on Life via Harvard Magazine, Courtesy of Jeff Lichtman Laboratory Color-coded neural circuits in the brains of mice allow Jeff Lichtman to trace the fate of individual nerve cells over time and across distances.
via Harvard Magazine, Courtesy of Gene-Wei Li and Peter Sims, Harvard University Sunney Xie combines a transmission image of bacteria (blue) with a fluorescence image of molecules (yellow) binding to sites on the bacteria\u2019s DNA in order to create a complete picture of the interaction. This article is a useful follow-up on my post about Could Science and Art Become One and the Same? . The subject of my comment is thus visualization versus art. In recent years science has made a dramatic usage of visual imaging techniques to understand what is going on at the micro and macro levels. But the fact is that digital imaging are photos taken from various kinds of microscopes or telescopes that are then often reprocessed by pairing 2 or more of those initial cliches in order to try to catch the meaning of what is going on in those images. Those images are often stunning and offer a depth of meaning and beauty that puts to shame most modern art works. But for scientists it is only a question of making sense in what they observe. Visual imaging is no more than a tool. But what about the images they obtain? Are those art works? Those digital images are not art works in the traditional sense of the concept of art: the production of visual signs about the worldview of the men of knowledge of the day. Those images are tools for scientists to discover sense and they are only fragments of the ensemble of images and ideas that forms their worldview. Art should not be confused with scientific imaging. The mission of the artist is to illustrate the worldview of the men of knowledge of our days. And the men of knowledge in late modernity and early post-modernity are not the scientists. Those men of knowledge are the rare individuals who are succeeding to integrate scientific knowledge within the more globally encompassing realm of philosophy and history. Some are scientists, some are philosophers or historians and some are artists. The late-modern and early post-modern artist has thus to accumulate the widest possible knowledge-base in order to be able to pinpoint the rare true men of knowledge in his time. And his mission is then to render visual signs about their worldview for all to share.
- Shedding Light on Life in Harvard Magazine by Courtney Humphries
