A magnetometer is a device that measures magnetism: the direction, strength, or relative change of a magnetic field at a ...

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If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds ...

Micah Castelo is a web editor for EdTech: Focus on K-12. Her experience includes education and community news coverage for the Syracuse Post-Standard and international news reporting for the Pulitzer ...

Dr. Troy Mensen is a family medicine doctor based in the Chicago area. He completed his undergraduate degree at the University of Northern Iowa and his doctorate at Des Moines University College of ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Doretha Clemons, Ph.D., MBA, PMP, has been a corporate IT executive and professor for 34 years. She is an adjunct ...

As Food & Wine's Testing Editor, Jennifer's work focuses on finding the best tools for all sorts of cooks. She's vetted hundreds of products, from can openers to salad spinners and tortilla presses, ...