The magic of magnetism
Music on a ribbon
The spinning platters
Swiping through life
Earth's ancient tape recorder
YOUR GOAL
Master of How magnetic surfaces keep our secrets
007skaty Microscopic magnetic domains store digital information inside ferromagnetic materials.
007skaty Magnetic storage evolved from coating flexible plastic with liquid iron oxide to layering hard drives with 10 to
007skaty Vibrant screen-printed repeating blocks of north and south magnetic poles on a surface
Scrambling magnetic data: A strong magnet waved near a credit card's magnetic stripe will scramble its microscopic domains, rendering the card completely unreadable.
A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects. In 1600, physician William Gilbert first proposed that the Earth itself behaves as a giant magnet.
Approximately how thick is the magnetic recording layer on a modern hard drive platter?
In a digital magnetic storage system, what does flipping the direction of magnetic poles represent?
Which French physicist discovered the relationship between temperature and magnetism in 1895?
What is the specific temperature at which a magnetic material completely loses its magnetic properties called?
What type of materials can retain their magnetism after an external magnetic field is removed?
Which metal is commonly used in modern, high-tech hard drive coatings because of its strong magnetic properties?