In Python Physics #22, we bring electric fields of a point charge to life with interactive Python simulations. Learn how to visualize field lines, understand the direction and magnitude of the ...

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.

Sam Taube writes about investing for NerdWallet. He has covered investing and financial news since earning his economics degree from the University of Maryland in 2016. Sam has previously written for ...