Using a magnetic compass to calculate the current in a wire. Learn how magnetic fields, compass deflection, and basic electromagnetism principles connect in a practical physics experiment.

12:56, Wed, Jan 14, 2026 Updated: 12:57, Wed, Jan 14, 2026 Drivers are being urged to use a nifty trick involving a compass to park their cars overnight this winter which comes in handy on cold, icy ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Apple Music is now available as an extension within ChatGPT, meaning you can search for songs, create playlists, and discover new music through OpenAI's chatbot. Here's how to set it up and what makes ...

Learn the benefits and risks of options and how to start trading options Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Samantha (Sam) Silberstein, CFP®, CSLP®, ...