…y a TXT file on your Desktop: Create a new Shell geeklet in the Geektool preference pane Enter the command: cat PathToYourList/YourList.txt To synchronize multiple computers, make sure the file is in a Dropbox folder. Quicksilver. This is why I own a mac. It’s free from Blacktree.com. If you’re new to it, try this beginner’s guide. To set up the ‘Append’ and ‘Completed’ functions seen in the screencast: On the Quicksilver > Plugins page, add the ‘…
Read more…cientific practice catches our interest. What happens when that kind of carefree creativity and affinity for science are set loose on raw, practical problems? Nathan Myhrvold seems to have asked this question, and then systematically implemented an answer, in a company called Intellectual Ventures. The first part of what I.V. does looks a lot like the Philosophy of Science. (An interesting note: Myhrvold did a PhD in early-universe QFT.) A bunch o…
Read more…any copies of SE(3) as there are vertebrae. Of course, to make this idea useful, Ivancevic must argue that most spinal injuries are due to what he calls an ‘SE(3)-jolt.’ This is, effectively, a certain kind of local perturbation of the forces acting on the ‘spinal cord’ group. However, if the data continues to support Ivancevic’s hypothesis, then he may have discovered a very useful new way to think about these injuries. History: Applications of G…
Read more…. Backreaction is one of my very favorite blogs. Sabine Hossenfelder and Stefan Scherer (Perimeter Institute) provide a lot of great updates on physics, but also some excellent contributions to the philosophy of physics. A Mind for Madness ranges from very technical mathematical physics, to general philosophy of science, to music, and beyond. The Blog of Noah Greenstein produces a lot of very original philosophy, and takes its occasional jaunt int…
Read more…u to write that vector, The conjugation operator is just the operator defined by conjugating all the complex constants of a vector written in the -basis, So that’s pretty easy. And it’s easy to check that satisfies some special properties: it is antilinear , antiunitary , and it commutes with the that we used to define it . We will use all of these properties in the next step. The second step to seeing why our “Fact” is true is to recogniz…
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