Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Magnetism in the 21st Century
Transcript of Magnetism in the 21st Century
http://science.howstuffworks.com/maglev-train.htm Magnetic Resonance Imaging (MRI) A magnetic field is produced by running an electric current throughout coils of wire. Other coils in the machine send and recieve radio waves. A computer processes these and generates a series of images.
http://www.radiologyinfo.org/en/info.cfm?pg=bodymr Electromagnet An electromagnet is
created by connecting the negative terminal of a power source to the positive terminal via a wire. The current flowing through the wire produces a magnetic field.
http://science.howstuffworks.com/electromagnet.htm Gauss Rifle When you release the first ball, it is attracted to the first magnet. The force it hits the magnet with is transferred to the other balls touching the magnet. As each ball is pulled toward each magnet, the force increases. Finally, when the last ball recieves all of the transferred energy, it is propelled with a substantial amount of force.
http://science.howstuffworks.com/electromagnet.htm Earth's Magnetosphere Around Earth's magnetic field, there is an area we call the magnetosphere. It restricts the entrance of most particles from the sun to Earth. Many other planets have magnetospheres, but Earth's is the strongest.