Learn how to create contour plots in Python using NumPy’s meshgrid and Matplotlib. This step-by-step tutorial shows you how to generate grids, compute functions over them, and visualize data ...

Want to try your hand at flying a quadcopter, but aren’t ready for a pro model? These are the best affordable and easy-to-fly drones we've tested. Images, and the devices that capture them, are my ...

Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.