Earth's magnetic field is what protects our planet from harmful space radiation. However, our protective shield might soon go into a transformation that could threaten the lives on Earth. This video shows what will happen when Earth's magnetic poles flip. Special thanks to Alanna Mitchell: https://www.amazon.com/Spinning-Magnet-Electromagnetic-Created-World/dp/110198516X Tech Insider tells you all you need to know about tech: gadgets, how-to's, gaming, science, digital culture, and more. Subscribe to our channel and visit us at: http://www.businessinsider.com/sai TI on Facebook: https://www.facebook.com/techinsider TI on Instagram: https://www.instagram.com/tech_insider/ TI on Twitter: https://twitter.com/techinsider