What Do Magnetic Fields Actually Do? | SciShow Compilation

So what exactly do magnetic fields actually do? What would happen if they went away? Turns out, it could be catastrophic! SciShow will explain it all in this fun new episode hosted by Michael Aranda!

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Original Episodes:
   • Why Does the Earth's Magnetic Field K...  
   • Foxes Might Use Magnetic Fields to Hunt  
   • The Two-Faced Role of Planetary Magne...  
   • Earth Has Another Magnetic Field  
   • The Strongest Magnetic Field in the U...