Who has seen the wind? A Poem by Christina Rossetti www.poetryfoundation.org Who has seen the wind? Neither I nor you: But when the leaves hang trembling, The wind is passing through. Who has seen the wind? Neither you nor I: But when the trees bow down their heads, The wind is passing by. The Wind Rises windtreesseeing
Architectural Caustics A Research Paper insightsaboutlightandglass.com Show image 0 Show image 1 Show image 2 To control the shape of a caustic pattern generated by a specular or refractive surface, we need to solve the inverse problem: how can we change the surface geometry, such that incident light is redirected to produce a desired caustic image? Caustic EngineeringCaustic (optics) causticsoptics