tag:blogger.com,1999:blog-22973357.post8172210079590362883..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: How liquid crystals handle conflicting boundary conditionsSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-22973357.post-12332490169136013252012-12-07T15:00:21.657-05:002012-12-07T15:00:21.657-05:00TEDxCaltech - David Awschalom - Spintronics: Aband...TEDxCaltech - David Awschalom - Spintronics: <a href="https://www.youtube.com/watch?v=g9NAUPbqAvE" rel="nofollow">Abandoning Perfection for the Quantum Age</a>"<br /><br />Enjoy Uncle:)PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-38922332838760631702012-12-07T14:06:35.047-05:002012-12-07T14:06:35.047-05:00Intuition and Logic in Mathematics by Henri Poinca...<i><a href="http://www-groups.dcs.st-and.ac.uk/~history/Extras/Poincare_Intuition.html" rel="nofollow">Intuition and Logic in Mathematics</a> by Henri Poincaré<br /><br />On the other hand, look at Professor Klein: he is studying one of the most abstract questions of the theory of functions to determine whether on a given Riemann surface there always exists a function admitting of given PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-77225058030635012102012-12-06T18:55:39.315-05:002012-12-06T18:55:39.315-05:00/*Up to 2nd order in derivatives of the vector fie.../*Up to 2nd order in derivatives of the vector field there is a handfull of terms that can be written down with constants to parameterize their relative strength.*/<br /><br />This is merely a regression, i.e. the fitting curve to data, not explanation of curve with data. The causality arrow is still reversed here.<br /><br />I still don't see any explanation of rectangular patterns or at Zephirhttps://www.blogger.com/profile/06010623752049244967noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-85112329296764199422012-12-06T15:41:49.437-05:002012-12-06T15:41:49.437-05:00Pyrex (7740 borosilicate glass) has 5.5+ Mohs hard...Pyrex (7740 borosilicate glass) has 5.5+ Mohs hardness, hard as a stainless steel knife. Knoop hardness 418 kg/mm^2, Vickers hardness 5.8 GPA, about Rockwell C ~56. Wipe or swirl a Pyrex microscope slide surface with a soft cloth, paper towel, Chem-Wipe, tissue; or a block of teflon. Thin layer liquid crystal ordering an orientation can wildly vary, depending on the surface "preparation.&Uncle Alhttps://www.blogger.com/profile/05056804084187606211noreply@blogger.com