How Do Magnets Work?
CrowdScience
00:00
The Importance of a Sensory Magnetic Compass
Professor Peter Morris from Nottingham University in the UK demonstrates some new technology which uses magnetism to read your thoughts. When electrons move in a brain cell when your neurons fire that has a measurable magnetic field. So we have to measure those very tiny electric fields and we can't use perhaps what people would be most familiar with a magnetic compass but we need something much much more sensitive.
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