🗺️ From the Green Book to Today’s Immigration Sanctuary Map 🌍 In the 20th century, the Negro Motorist Green Book helped Black Americans travel safely through a segregated United States. It offered more than travel tips — it was a lifeline, a guide to dignity, safety, and freedom of movement in an unjust world. Today, a new kind of map is quietly taking shape — one that shows sanctuary cities, counties, and states. These are places where local policies limit cooperation with federal immigration enforcement. While protections vary, many immigrants find these jurisdictions to be safer ground for building their…

Prism DGTD simulation toolkit with GDM for pixelized metasurface This simulation package is the prism-based Discontinuous Galerkin Time Domain method with General Dispersion Model for analysis of gold pixelized metasurfaces. How to use it: Open "runme.m" in MATLAB. Modify the time span and the Geo matrix "A". The geometry is a 2-fold symmetric unit cell with a period of 400 nm. The unit cell can be patterned by several gold pixels, measures 50 nm × 50 nm × 20 nm. In order to add gold padding, one could input the number of padding, and then the index numbering. The index…