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These illumination techniques are most commonly used on birefringent or transparent samples where the polarized light interacts strongly with the sample, generating contrast with the background. Polarized light microscopy is used extensively in optical mineralogy. | These illumination techniques are most commonly used on birefringent or transparent samples where the polarized light interacts strongly with the sample, generating contrast with the background. Polarized light microscopy is used extensively in optical mineralogy. | ||
You can modify your light microscopy | You can modify your light microscopy by adding a ''polarizer'', positioned before the specimen, and an ''analyzer'' placed between the objective and the observation tubes. | ||
''21/11/2020'' | ''21/11/2020'' | ||
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[http://www.https://www.youtube.com/watch?v=2UxGrde1NDA&ab_channel=TED Heather Barnett: What humans can learn from semi-intelligent slime] | [http://www.https://www.youtube.com/watch?v=2UxGrde1NDA&ab_channel=TED Heather Barnett: What humans can learn from semi-intelligent slime] | ||
There are different types of slim molds, but the one I am interested in is the '''Physarum polycephalum'''. | |||
''Physarum polycephalum'' slim molds are these semi-intelligent microorganisms who grow and spread themselves into branches. They are brainless unicells, but they can learn and somehow make decisions. They pulse and through the microscope you can see streams which serve to transfer food inside them. They can be fed with a various diets, most of all they love oats. Several scientist and artists have been conducting researches about slime molds and the way they behave, to apply some of their mechanisms to the computational field. | |||
[[File:slime mold.jpeg|200px]] | |||
[[File:slime mold.jpeg|200px]] | |||