To the editor: Excuse me, but are we ignoring the elephant in the room? This op-ed (“No military strategy can stop Mexico’s cartels,” Aug. 26) never mentions that the United States is the world’s No.

Mexican President Claudia Sheinbaum speaks during the daily morning briefing at the National Palace on Aug. 6, 2025. (Manuel Velasquez / Getty Images) ...

Flaunting bizarrely blobby crowns, colorful helmets, or elaborately arching hats, treehoppers would fit right in at the most outrageous fashion show. These tiny sapsuckers have long mystified ...

This repository provides the environment used to train engineai-robots (and other robots) to walk on rough terrain using NVIDIA's Isaac Gym. It includes all components needed for sim-to-real transfer: ...

Create a new python virtual env with python 3.6, 3.7 or 3.8 (3.8 recommended). i.e. with conda: The base environment legged_robot implements a rough terrain locomotion task. The corresponding cfg does ...