#workinprogress

mkwadee@diasp.eu

In the #2D #elasticity, #equilibrium of #stresses can be represented on an infinitesimal rectangular element with components of both #DirectStress and #ShearStress generally acting on all four edges. If you were to rotate the rectangle, the stresses change in a precisely orchestrated fashion. In the orientation where the shear stress components vanish, we get what are called #PrincipalStresses and they and their directions can be ascertained precisely through #eigenvalue analysis. This little graphical demonstration shows one example of such a state. The #AnimatedGif was produced a routine written in #WxMaxima.

#Mathematics #TheoryOfElasticity #Mechanics #SolidMechanics #Engineering #MyWork #CCBYSA #WorkInProgress

gwenny_gloom@joindiaspora.com

A while ago I started to style our living room in some kind of forest look. At first our houseplants were accompanied with some forest-themed knick-knackery and I painted our furniture. Then I added some real branches from the woods nearby. But now I am taking it to the next level - the trees are coming in! If you want to put something other than pictures on your wall, just take a roll of packing paper, some ink, water and a paintbrush - there you go :D
#workinprogress #justdoit #unusual #cozyhome #naturalliving #diy #sustainableart #thingsfromscrap #forestlife #painting #drawing #ink #watercolour #myart #gwennygloom #thelittlethings #letitgrow