Magnetism
Published on Nov 23, 2015
No Description
MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
Magnetism
Kevin's 20% Project :)
What is Magnetism?
Magnetism is the force that attracts and repels certain metals. But how does it work?
Let's start with what a magnet actually IS. A magnet is a piece of iron or other metal with all of it's domains lined up. (South side pointing one side, North side pointing another side)
A domain, is a small magnetic object (too small to see) if domains in ferromagnetic material aren't lined up, it's not a magnetic
This is what triggers repelling. The North sides of the each magnet's magnetic field slam into each other, and repel eachother.
This happens because the north sides of the magnet (Where all the north sides of the domains point) generate a magnetic field, it's very hard to explain, so I'll use the diagram, look how the north sides arrows oppose eachother.
Attraction is triggered the exact opposite way. The north side does not repel the south, I'll review the last slide's diagram to show that.
How Strong does magnetism get?
Very Strong. Here are some extremely strong magnets.
1. Magnetars.
A magnetar is neutron star. A magnetar is Strong enough to easily erase your credit card from the moon, and suck out the iron from your blood from millions of miles away. it may be on of the strongest magnets we know of, but it's only found in deep, deep, deep, space. Magnetars are created by giant, super-massive stars; way, larger then our sun, explode in a Super-Nova, rarely creating a magnetar
2. Pulsars.
Pulsars are a different form of neutron star, still magnetic, but less magnetic and electromagnetic, and also extremely radioactive. They are also created by supernovas.
3. Our sun :)
Our sun isn't green, that just shows the sun in a different light spectrum, the sun is magnetic. But it's not as dense as normal magnets, so it churns, and twists, a bit, creating a magnetic field, but a strange one.
Fun Facts about magnetism :)
1. Different metals can be stronger magnets than iron. (Like you saw at the Bakken Museum)
2. Magnetism can be used to generate electricity and electricity can be used to generate magnetism
3. There are 4 types of magnetism, Normal Magnetism, Electro-Magnetism, Induced Magnetism, and Temporary Magnetism.
4. Some people think of using magnets for future hoverboards and stuff. There would be magnets laid down in a road, north side up, then hoverboards would be made with the north side down, the two sides would repel, resulting in the hoverboard to be levitated, but it would have to be very accurate.
Bibliography:
QuarksToQuasars.com
NASA.gov
Jake (For showing us Haiku Deck)
Thanks for watching! :D
Questions?
